Skip to content

What's New — Hip — July 2026

45 new articles published this month.

Themes: Hip Arthroscopy Outcomes and Indications · Total Hip Arthroplasty Complications and Risk Factors · Revision Arthroplasty and Instability Management · Patient-Reported Outcomes and Recovery Metrics

Digest generated 2026-08-04 16:12:28+00:00.

Highlights

Hip Arthroscopy Outcomes and Indications

Recent literature evaluates diagnostic criteria for hip microinstability, highlighting heterogeneous standards but consistent inclusion of intraoperative distraction and physical exam findings [1]. In the revision setting, labral reconstruction demonstrates equivalent or superior midterm outcomes compared to repair [3]. For primary femoroacetabular impingement, subspine decompression yields favorable five-year survivorship [4], while labral hypoplasia predicts higher revision and arthroplasty risks at ten years [6]. Specific populations, such as basketball players, achieve high return-to-sport rates following labral repair [7]. Additionally, preoperative gait analysis may predict surgical candidacy and clinical severity in hip osteoarthritis [30], and prehabilitation interventions are being developed to optimize outcomes [27].

Total Hip Arthroplasty Complications and Risk Factors

Multiple studies identify preoperative and intraoperative risk factors for adverse outcomes in total hip arthroplasty. Preoperative sepsis significantly elevates periprosthetic joint infection (PJI) and mortality rates [17], while prior pneumonia, specifically Staphylococcal, increases PJI risk [14]. Undernutrition and low BMI are independent predictors of worse postoperative outcomes [22], and diabetic neuropathy is associated with increased orthopedic and medical complications [40]. Surgical technique modifications, such as using absorbable deep dermal staples, reduce wound complications in the direct anterior approach [28]. Furthermore, collar-calcar contact with specific cementless stems reduces early periprosthetic fracture risk in Dorr Type C femora [29], and dexamethasone administration shows a dose-dependent reduction in venous thromboembolic complications [36].

Revision Arthroplasty and Instability Management

Complex revision scenarios present unique challenges, including conversion THA after prior internal fixation, which shows distinct outcomes compared to primary and revision cases [11]. For periprosthetic joint infection, trochanteric osteotomy in two-stage revisions does not appear to negatively impact infection control or outcomes [20]. Instability remains a major concern; dual mobility constructs significantly reduce re-revision rates after revision for dislocation [21], and contemporary data suggest that even two dislocation events often necessitate revision [33]. Acetabular revision with moderate to severe bone loss using uncemented monoblock dual-mobility cups demonstrates good five-year survivorship [38]. Additionally, pseudotumor-related compression neuropathies, though rare, require specific surgical management [35], and aseptic loosening continues to drive significant national revision volumes and economic burden [32].

Patient-Reported Outcomes and Recovery Metrics

Understanding patient-reported outcome measures (PROMs) is critical for evaluating success. Preoperative HOOS JR scores predict the timing and achievement of substantial clinical benefit following primary THA [23]. The relationship between joint-specific recovery and overall health perception varies, with some studies showing dissociation between disease-specific and general health improvements [31]. Achieving a patient-acceptable symptom state (PASS) after robot-assisted THA depends on the specific outcome measure used, indicating distinct recovery dimensions [41]. In staged bilateral THA, the length of stay and PROMs of the index procedure predict outcomes of the contralateral surgery [45]. Similarly, manipulation under anesthesia for stiff knees restores motion but may result in worse functional gait metrics compared to non-manipulated patients [25].

Articles by Theme

Hip Arthroscopy Outcomes and Indications (7)

1. Hatch R, Harley JD, Douglass BW, et al. Diagnostic Criteria for Hip Microinstability Are Heterogeneous but Consistently Include Ease of Intraoperative Distraction and Physical Examination Findings: A Systematic Review. Arthroscopy 2026. doi:10.1002/arj.70395

This systematic review evaluated diagnostic criteria for hip microinstability across 23 studies, identifying ease of intraoperative distraction and specific physical examination tests as the most frequently cited indicators. The findings reveal substantial heterogeneity in diagnostic approaches with no universally applied standard. Clinically, this highlights the need for standardized diagnostic protocols to improve consistency in identifying hip microinstability.

3. Quesada-Jimenez R, Cohen MF, Rana K, et al. Revision Hip Arthroscopy: Propensity Score–Matched Comparison of Labral Reconstruction Versus Repair With Minimum 5-Year Outcomes. The American Journal of Sports Medicine 2026. doi:10.1177/03635465261456597

This propensity score-matched study compared minimum 5-year outcomes of arthroscopic labral reconstruction versus repair in revision hip arthroscopy for femoroacetabular impingement. The results indicated comparable patient-reported outcomes and satisfaction rates between the two surgical techniques. This suggests that either procedure can be considered effective for revision cases, allowing surgeons to choose based on specific intraoperative factors.

4. Kahana-Rojkind AH, Rana K, Barda SR, et al. Minimum 5-Year Outcomes After Arthroscopic Subspine Decompression in Patients With Femoroacetabular Impingement: A Propensity-Matched Study. The American Journal of Sports Medicine 2026. doi:10.1177/03635465261456226

This propensity-matched study evaluated minimum 5-year outcomes of arthroscopic subspine decompression in patients with femoroacetabular impingement and subspine impingement. The findings demonstrated high rates of clinically meaningful improvement and survivorship comparable to matched controls without subspine impingement. Clinically, this supports the efficacy of subspine decompression as a valuable adjunct in hip arthroscopy for FAI patients with coexisting subspine pathology.

6. Berzolla E, Chen L, Messina J, et al. Labral Hypoplasia by Preoperative Magnetic Resonance Imaging Predicts Higher Revision and Arthroplasty Risk After Hip Arthroscopy for Femoroacetabular Impingement Syndrome at 10 Year Follow‐Up. Arthroscopy 2026. doi:10.1002/arj.70404

This 10-year follow-up study assessed the association between preoperative MRI-measured labral width and outcomes after hip arthroscopy for femoroacetabular impingement syndrome. Patients with labral hypoplasia were found to have higher risks of revision surgery and arthroplasty compared to those with normal labral width. This suggests that preoperative MRI assessment of labral morphology can help identify patients at higher risk for long-term failure, aiding in surgical planning and counseling.

7. Okolo M, Kang L, Smith J, et al. Hip Arthroscopic Labral Repair for Femoroacetabular Impingement Yields High Return‐to‐Sport Rates and Improved Outcomes in Basketball Players. Arthroscopy 2026. doi:10.1002/arj.70381

This study evaluated return-to-sport rates and outcomes following hip arthroscopic labral repair for femoroacetabular impingement in active basketball players. The results showed significant improvement in patient-reported outcomes and a high return-to-sport rate of 78% among athletes who resumed play. This supports hip arthroscopy as an effective treatment for restoring athletic function in basketball players with FAI.

27. Punnoose A, Mueller LC, Shah V, et al. Prehabilitation for Femoroacetabular Impingement Syndrome: Intervention development using the Medical Research Council framework. Journal of ISAKOS 2026. doi:10.1016/j.jisako.2026.101188

This study developed a novel prehabilitation intervention for patients with femoroacetabular impingement syndrome using the Medical Research Council framework and expert consensus. The resulting eight-week program combines progressive strengthening and range-of-motion exercises tailored to patient preferences and electromyographic evidence. This structured approach aims to optimize pre-surgical conditioning, though its clinical effectiveness requires further validation.

30. Hu J, Zhong W, Liu C, et al. Preoperative Gait Analysis Predicts Surgical Candidacy and Clinical Severity in Hip Osteoarthritis. The Journal of Arthroplasty 2026. doi:10.1016/j.arth.2026.07.031

This study examined the relationship between preoperative three-dimensional gait parameters and clinical severity in patients with hip osteoarthritis undergoing total hip arthroplasty. Specific gait metrics, such as step length and knee range of motion, were associated with surgical candidacy and postoperative outcomes, independent of radiographic findings. Incorporating gait analysis into preoperative assessments may provide valuable objective data for predicting surgical success and functional recovery.

Total Hip Arthroplasty Complications and Risk Factors (7)

14. Parmar RP, Alhankawi AR, Holle AM, et al. Preoperative Pneumonia and Its Association With Periprosthetic Joint Infection and Postoperative Complications After Total Hip and Knee Arthroplasty. The Journal of Arthroplasty 2026. doi:10.1016/j.arth.2026.06.082

This study investigated the association between preoperative pneumonia and postoperative complications following total hip and knee arthroplasty. While overall prior pneumonia was not linked to increased periprosthetic joint infection risk, Staphylococcal pneumonia within three months of surgery significantly elevated infection risk. Clinicians should consider delaying surgery for patients with recent Staphylococcal pneumonia to mitigate infection risks.

17. Alhankawi AR, Holle AM, Renfree SP, et al. Preoperative Sepsis Is Associated with an Elevated Rate of Periprosthetic Joint Infection and Mortality Following Total Hip Arthroplasty in a Time-Dependent Manner. The Journal of Arthroplasty 2026. doi:10.1016/j.arth.2026.07.016

This retrospective cohort study evaluated the impact of preoperative sepsis on outcomes following primary total hip arthroplasty using a national insurance database. Preoperative sepsis was associated with significantly increased rates of periprosthetic joint infection, postoperative sepsis, and acute kidney injury, with risks varying by the timing of the sepsis episode. These findings suggest that preoperative sepsis is a critical risk factor for adverse surgical outcomes, warranting careful patient optimization and monitoring.

22. Choubey A, Abunnur N, Hussain J, et al. Undernourished and Underweight: Independent Predictors of Worse Outcomes Following Total Hip Arthroplasty. The Journal of Arthroplasty 2026. doi:10.1016/j.arth.2026.07.003

This study analyzed the impact of underweight status and hypoalbuminemia on 30-day postoperative complications following primary total hip arthroplasty using a national surgical database. Underweight patients, particularly those with hypoalbuminemia, faced significantly higher risks of bleeding, cardiac arrest, readmission, and mortality. Preoperative nutritional assessment and optimization are crucial for mitigating these elevated risks in underweight THA patients.

28. Abuoqab L, Rice SW, Crawford DA. Reduced Wound Complications with Absorbable Deep Dermal Staples in Direct Anterior Total Hip Arthroplasty. The Journal of Arthroplasty 2026. doi:10.1016/j.arth.2026.07.027

This retrospective review evaluated the efficacy of absorbable deep dermal staples versus conventional barbed sutures for incision closure in direct anterior total hip arthroplasty. The use of absorbable staples was associated with a significantly reduced incidence of wound complications, particularly in patients with elevated body mass index. This suggests that staple augmentation may be a superior closure technique for minimizing wound-related morbidity in this surgical approach.

29. Navarro JAM, Miura Y, Oinuma K, et al. Collar-Calcar Contact Reduces Risk for Early Periprosthetic Fracture and Subsidence in Dorr Type C Femora Using Collared, Fully Hydroxyapatite-Coated, Cementless Stems. The Journal of Arthroplasty 2026. doi:10.1016/j.arth.2026.07.030

This study evaluated the association between collar-calcar contact and early periprosthetic fracture or subsidence in Dorr Type C femora using collared, hydroxyapatite-coated stems. Full collar-calcar contact was observed in nearly all cases, and periprosthetic fractures occurred exclusively in hips with a gap between the collar and calcar. Ensuring complete collar-calcar contact is critical for reducing the risk of early mechanical failure in osteoporotic femurs.

36. Telang SS, Wier J, Jones IA, et al. Dexamethasone is Associated with a Dose-Dependent Reduction in Venous Thromboembolic Complications following Total Knee and Hip Arthroplasty. The Journal of Arthroplasty 2026. doi:10.1016/j.arth.2026.07.018

This study evaluated the long-term survivorship and clinical outcomes of uncemented monoblock dual-mobility cups used for acetabular revision in patients with moderate to severe bone loss. The results showed high implant survivorship and satisfactory functional outcomes at a mean follow-up of 8.6 years, with low rates of aseptic loosening. This indicates that uncemented monoblock dual-mobility cups are a viable option for complex acetabular revisions with significant bone loss.

40. Kotzur T, VanderWeele BP, Barnes M, et al. Diabetic Neuropathy Is Associated with Increased Orthopedic and Medical Complications After Total Hip Arthroplasty. The Journal of Arthroplasty 2026. doi:10.1016/j.arth.2026.07.038

This large-scale retrospective cohort study compared postoperative outcomes in patients undergoing total hip arthroplasty, specifically assessing the impact of diabetic neuropathy versus diabetes without neuropathy and non-diabetic controls. The results demonstrated that diabetic neuropathy is independently associated with significantly higher rates of both orthopedic complications, such as infection and revision, and medical complications within 90 days. Clinically, these findings highlight the need for enhanced perioperative monitoring and risk mitigation strategies for THA patients with diabetic neuropathy.

Revision Arthroplasty and Instability Management (7)

11. Hali K, Manzo MA, Entezari B, et al. Conversion Total Hip Arthroplasty Following Prior Internal Fixation: A Comparison with Primary and Revision Total Hip Arthroplasty. The Journal of Arthroplasty 2026. doi:10.1016/j.arth.2026.06.078

A retrospective cohort study compared outcomes of conversion total hip arthroplasty (cTHA) following prior internal fixation against primary and revision THA. Propensity-matched analysis revealed that cTHA had a higher risk of reoperation compared to primary THA but similar outcomes to revision THA. These findings suggest cTHA carries intermediate complexity and risk profiles between primary and revision procedures.

20. Entezari B, Hakim R, Cao K, et al. Trochanteric Osteotomy in Two-Stage Revision Total Hip Arthroplasty for Periprosthetic Joint Infection: A Retrospective Cohort Study. The Journal of Arthroplasty 2026. doi:10.1016/j.arth.2026.06.086

This retrospective cohort study assessed the impact of trochanteric osteotomy on intra- and postoperative outcomes during two-stage revision total hip arthroplasty for periprosthetic joint infection. The use of trochanteric osteotomy was associated with increased surgical duration and blood loss during the first stage but did not negatively affect infection control or final ambulatory status. The technique appears safe for improving access without compromising long-term functional or infectious outcomes.

21. Zamzam M, Hodson N, Zhu Q, et al. The Effect of Dual Mobility Articulations on Re-Revision After Revision for Dislocation. The Journal of Arthroplasty 2026. doi:10.1016/j.arth.2026.07.009

This registry-based study evaluated whether dual mobility (DM) acetabular constructs reduce re-revision rates compared to fixed-bearing liners in revisions for dislocation. Patients receiving DM constructs demonstrated significantly lower cumulative percent revision rates at one and two years compared to those with non-DM constructs. Dual mobility articulations are associated with improved stability and reduced need for re-revision in patients undergoing revision for instability.

32. Pisharody VA, Nour G, Chowdary AR, et al. National Case Volume and Economic Burden of Inpatient Revision Hip Arthroplasty for Aseptic Loosening: Trends and Future Projections from 2012 to 2032. The Journal of Arthroplasty 2026. doi:10.1016/j.arth.2026.07.033

This study estimated the national incidence and economic burden of inpatient revision hip arthroplasty for aseptic loosening from 2012 to 2032 using a nationally representative database. While volumes declined during the pandemic, the average cost per admission remained high, with projections indicating a substantial future economic burden. These findings underscore the significant financial impact of aseptic loosening and the need for cost-effective prevention and management strategies.

33. Driscoll DA, Burgio C, Viggiano M, et al. “Two Strikes, You’re Out”: Contemporary Revision Patterns Following Instability after Posterior and Anterior Approach Total Hip Arthroplasty. The Journal of Arthroplasty 2026. doi:10.1016/j.arth.2026.07.020

This study analyzed a contemporary cohort of primary THA patients to determine the relationship between dislocation recurrence and the need for revision surgery. The key finding was that the risk of revision for instability increased sharply after just two dislocations, challenging the historical threshold of three or more events. Clinically, this suggests that earlier intervention may be warranted after a second dislocation to prevent further instability.

35. Panos JA, Weintraub MT, Porche KM, et al. Pseudotumor-Related Compression Neuropathies Following Total Hip Arthroplasty. The Journal of Arthroplasty 2026. doi:10.1016/j.arth.2026.07.019

This systematic review and meta-analysis assessed the efficacy and safety of intra-articular corticosteroid injections for hip osteoarthritis. The analysis demonstrated that corticosteroid injections provide significant short-term pain relief and improved physical function compared to comparators, with benefits diminishing over the medium to long term. These findings support the use of corticosteroid injections as an effective conservative management option for symptom relief in hip OA.

38. Piercecchi A, Jacquet C, Rajillah O, et al. Minimum Five-Year Results of Acetabular Revision Using Uncemented Monoblock Dual-Mobility Cups for Moderate to Severe Bone Loss. The Journal of Arthroplasty 2026. doi:10.1016/j.arth.2026.07.036

This study evaluated the impact of diabetic neuropathy on postoperative outcomes following total hip arthroplasty compared to non-diabetic and diabetic patients without neuropathy. The key finding was that diabetic neuropathy was independently associated with increased rates of both orthopedic and medical complications within two years post-surgery. Clinically, this highlights the need for heightened vigilance and tailored perioperative management for patients with diabetic neuropathy undergoing THA.

Patient-Reported Outcomes and Recovery Metrics (5)

23. Carender CN, Wang Z, Janney C, et al. Preoperative Hip Disability and Osteoarthritis Outcome Score for Joint Replacement Scores Predict Timing and Achievement of Substantial Clinical Benefit Following Primary Total Hip Arthroplasty. The Journal of Arthroplasty 2026. doi:10.1016/j.arth.2026.07.012

This study determined the timing and predictors of achieving substantial clinical benefit (SCB) within the first year following primary total hip arthroplasty using HOOS JR scores. The median time to SCB achievement was 80 days, with lower preoperative HOOS JR scores predicting a higher likelihood of achieving SCB. Preoperative HOOS JR scores can help clinicians counsel patients on the expected timeline and probability of significant functional improvement.

25. Israelite C, Barrack R, Foran J, et al. Patients Undergoing Manipulation Under Anesthesia Recover Mobility, but Have Worse Functional Outcomes. The Journal of Arthroplasty 2026. doi:10.1016/j.arth.2026.07.021

This study compared gait metrics and functional outcomes in stiff-knee TKA patients who underwent manipulation under anesthesia (MUA) versus those who did not. While MUA successfully restored range of motion, it resulted in significantly worse immediate postoperative gait quality and functional outcomes compared to the non-MUA group. These findings suggest that while MUA improves ROM, it may temporarily impair gait mechanics and functional recovery.

31. Park J, Miley EN, Zhong X, et al. Linking Joint-Specific Recovery to Overall Health Through Patient-Reported Outcome Measures: A Propensity-Score Matched Cohort Study in Total Joint Arthroplasty. The Journal of Arthroplasty 2026. doi:10.1016/j.arth.2026.07.029

This propensity-score matched cohort study analyzed the correlation between joint-specific patient-reported outcome measures (PROMs) and overall health improvements following total hip and knee arthroplasty. The study found that improvements in disease-specific scores were significantly correlated with enhancements in overall physical health, mental health, and quality of life. These results demonstrate that joint-specific recovery is closely linked to broader improvements in patient well-being.

41. Coulomb R, Pradel S, Alsuwaidi M, et al. Preoperative Factors Associated With Achieving Patient Acceptable Symptom State After Robot-Assisted Total Hip Arthroplasty Differ According to the Outcome Measure Used. The Journal of Arthroplasty 2026. doi:10.1016/j.arth.2026.07.040

This retrospective study analyzed preoperative factors associated with achieving patient-acceptable symptom state (PASS) across four different outcome measures in 368 patients undergoing robot-assisted total hip arthroplasty. The key finding was that the preoperative predictors for achieving PASS varied significantly depending on the specific functional outcome score used. Clinically, this suggests that surgeons should consider multiple PROM dimensions when counseling patients, as different metrics reflect distinct aspects of postoperative recovery.

45. Khan ST, Emara A, Zhang C, et al. Index Procedure Length of Stay and Achievement of Patient Acceptable Symptom State Predict Outcomes of Contralateral Total Hip Arthroplasty Within 1-Year. The Journal of Arthroplasty 2026. doi:10.1016/j.arth.2026.07.052

This study assessed outcomes of contralateral total hip arthroplasty performed within one year of the index procedure in 680 patients with bilateral hip osteoarthritis. The results indicated that the index procedure's length of stay and achievement of patient-acceptable symptom state (PASS) were significant predictors of outcomes for the second surgery. These findings suggest that optimizing recovery and discharge metrics during the initial surgery may improve subsequent outcomes in staged bilateral procedures.

2. Unknown Author. Issue Information. Arthroscopy 2026. doi:10.1002/arj.70492

This issue information page lists the contents of the August 2026 volume of Arthroscopy, including articles on ACL reconstruction, hip arthroscopy, cost-effectiveness, meniscus repair, and generative AI in healthcare. It serves as a table of contents and publication information for the journal issue. No specific research findings or clinical implications are presented in this editorial overview.

5. Giovanoulis V, Koutserimpas C, Vassallo FL, et al. Equivalent Patient‐Reported Outcomes for Suture Staple Technique Versus Control Side‐To‐Side Endoscopic Gluteus Medius Repair. Arthroscopy 2026. doi:10.1002/arj.70434

This retrospective study compared patient-reported outcomes between endoscopic gluteus medius repairs using a suture staple technique versus a control side-to-side repair at a minimum of 24 months. The analysis of 61 patients revealed no statistically significant differences in functional scores or pain levels between the two surgical methods. These findings suggest that the suture staple technique is a viable alternative with equivalent clinical efficacy to the traditional side-to-side repair.

8. Uysal Aİ, Yaşar E. Letter regarding ‘A Randomized, Double-Blind, Placebo-Controlled Trial on the Efficacy of Dexamethasone Combined with Neuraxial Anesthesia in Reducing Pain and Opioid Consumption after Primary Cementless Total Hip Arthroplasty Using the Direct Anterior Approach’. The Journal of Arthroplasty 2026. doi:10.1016/j.arth.2026.02.043

This letter to the editor critiques a recent trial on dexamethasone use in total hip arthroplasty, highlighting concerns regarding rebound pain and metabolic disturbances. The authors argue that the study's short follow-up and fixed dosing may overlook significant adverse effects despite early analgesic benefits. This correspondence urges greater caution and longer-term monitoring when incorporating dexamethasone into enhanced recovery protocols for hip arthroplasty.

9. Danaher M, Lin C, Nelms N, et al. Integrating Robotic-Assisted Arthroplasty into Orthopaedic Education: The Fellows’ Perspective. The Journal of Arthroplasty 2026. doi:10.1016/j.arth.2026.06.059

Orthopaedic arthroplasty fellows surveyed their training exposure and satisfaction regarding robotic-assisted versus conventional total joint arthroplasty. Fellows reported significantly higher satisfaction with conventional training and expressed a desire for balanced robotic and manual experience when selecting fellowships. This highlights a need to integrate comprehensive robotic training into orthopaedic education to ensure adequate resident preparedness.

10. Unknown Author. Issue Information. Arthroscopy 2026. doi:10.1002/arj.70446

This issue of Arthroscopy presents a collection of original research articles and commentaries covering diverse topics in arthroscopic and related surgery. Key studies address cartilage restoration, rotator cuff repair, shoulder stabilization, hip arthroscopy, and biomechanical analyses of knee ligament repairs. The content reflects current clinical debates and advancements in minimally invasive orthopaedic techniques.

12. Fujii M, Kawano S, Ueno M, et al. Patient Satisfaction and Outcomes at a Mean 11-Year Follow-Up Following Total Hip Arthroplasty with Subtrochanteric Osteotomy for Dislocated Hips After Schanz Osteotomy. The Journal of Arthroplasty 2026. doi:10.1016/j.arth.2026.06.081

This study evaluated long-term outcomes of total hip arthroplasty with subtrochanteric osteotomy for chronically dislocated hips following Schanz osteotomy. At a mean 11-year follow-up, patients demonstrated significant improvements in functional scores and high implant survivorship. The procedure remains a viable option for restoring function in complex Crowe IV dislocations.

13. Baek G, Baidya J, Huang R, et al. Comparative Analysis of Periprosthetic Joint Infection Rates After Total Hip Arthroplasty Across Facility Types: A Single Institution Study. The Journal of Arthroplasty 2026. doi:10.1016/j.arth.2026.06.083

This study investigated the association between preoperative pneumonia and postoperative complications following total hip and knee arthroplasty. While overall prior pneumonia was not linked to increased periprosthetic joint infection risk, Staphylococcal pneumonia within three months of surgery significantly elevated infection risk. Clinicians should consider delaying surgery for patients with recent Staphylococcal pneumonia to mitigate infection risks.

15. Hao Y, Pan Y, Kim J, et al. Although patients with femoroacetabular impingement demonstrate abnormal kinematics during single-leg squat, their hip coordination angle variability remains unchanged.. Journal of ISAKOS 2026. doi:10.1016/j.jisako.2026.101172

The study analyzed hip kinematics and coordination angle variability during single-leg squats in patients with femoroacetabular impingement. Although patients exhibited abnormal kinematic patterns, their hip coordination angle variability remained unchanged compared to controls. This suggests that while movement patterns are altered, the consistency of motor control may be preserved in these patients.

16. Carender CN, Grosso M, Browne JA, et al. The American Association of Hip and Knee Surgeons Position Statement on OrthoBiologics for Advanced Hip and Knee Osteoarthritis. The Journal of Arthroplasty 2026. doi:10.1016/j.arth.2026.07.014

The American Association of Hip and Knee Surgeons issued a position statement addressing the use of orthobiologics for advanced hip and knee osteoarthritis. The statement emphasizes the lack of high-quality evidence supporting the efficacy of most orthobiologic injections for this indication. It recommends against their routine use outside of clinical trials and advocates for shared decision-making regarding their limited benefits.

18. Hurka KL, Rumalla KC, Memon R, et al. Cefazolin Prophylaxis in Patients Over 120 Kilograms: Comparison of Periprosthetic Joint Infection Following Total Hip Arthroplasty With Two Versus Three Grams Dosing. The Journal of Arthroplasty 2026. doi:10.1016/j.arth.2026.07.006

This study compared 90-day periprosthetic joint infection (PJI) rates between obese patients receiving two versus three grams of prophylactic cefazolin during total hip arthroplasty. The analysis found no significant difference in PJI incidence or risk between the two dosing groups. Consequently, the standard three-gram dose may not offer superior infection prophylaxis over two grams in patients weighing over 120 kilograms.

19. Moynan D, O’Connor C, Woo J, et al. Trauma-Related Arthroplasty Is Associated With Earlier and Microbiologically Distinct Periprosthetic Joint Infection: A 20-Year Single-Center Study. The Journal of Arthroplasty 2026. doi:10.1016/j.arth.2026.07.002

This 20-year single-center study compared periprosthetic joint infection (PJI) characteristics and outcomes between trauma-related and elective arthroplasty patients. Trauma-related PJIs occurred earlier and involved distinct microbiology, yet treatment success rates at 12 months were comparable to elective cases. Clinicians should anticipate earlier onset and different pathogen profiles in trauma-related PJIs while maintaining similar expectations for cure rates.

24. Isla J, Gonzalez W, Carrasco C, et al. Functional Outcomes and Return to Sport After Surgical Repair of Complete Proximal Hamstring Avulsions in Recreational Athletes: A Retrospective Case Series. Journal of ISAKOS 2026. doi:10.1016/j.jisako.2026.101175

This retrospective case series evaluated functional outcomes and return to sport rates following surgical repair of complete proximal hamstring avulsions in recreational athletes. The study provides data on the efficacy of surgical intervention in restoring function and enabling athletic participation in this specific population. Surgical repair appears to be a viable option for restoring function and facilitating return to sport in recreational athletes with complete avulsions.

26. Bera SR, Brady TT, Adamczyk A, et al. Heterogeneity in Complication Risks and Temporal Trends Across Aseptic Indications for Revision Total Hip Arthroplasty. The Journal of Arthroplasty 2026. doi:10.1016/j.arth.2026.06.085

This study analyzed complication risks and temporal trends across different aseptic indications for revision total hip arthroplasty using a large insurance claims database. The results revealed significant heterogeneity in periprosthetic joint infection and re-revision rates among patients undergoing revision for periprosthetic fracture, dislocation, or mechanical failure. These distinct risk profiles highlight the need for indication-specific counseling and management strategies in revision hip surgery.

34. Kawamata H, Tanaka H, Kuriyama Y, et al. Magnetic Resonance Imaging Quantitative Indices Predict Collapse in Osteonecrosis for Lesions Occupying More Than the Medial Two-Thirds of the Weight-Bearing Portion of the Femoral Head. The Journal of Arthroplasty 2026. doi:10.1016/j.arth.2026.07.010

Researchers evaluated three-dimensional MRI-based quantitative indices to predict femoral head collapse in patients with osteonecrosis of the femoral head (ONFH). The study found that specific MRI parameters, such as necrotic volume and depth ratios, were significantly associated with progression to collapse in JIC Types C1 and C2 lesions. These findings imply that quantitative MRI can aid in risk stratification and treatment planning for ONFH patients with high-risk lesion morphology.

37. Kelliher A, Beilharz SA, Sutton R. Efficacy of Intra-Articular Corticosteroid Injection for Hip Osteoarthritis: A Systematic Review with Meta-Analysis. The Journal of Arthroplasty 2026. doi:10.1016/j.arth.2026.07.024

This retrospective analysis examined the association between perioperative ketorolac administration and acute kidney injury (AKI) in over 7,000 primary total hip arthroplasties. The study found no significant increase in AKI risk associated with ketorolac use, even in patients with preexisting chronic kidney disease, regardless of the administration route. These findings suggest that ketorolac is safe for perioperative pain management in THA patients, including those with renal impairment.

39. Meissner N, Bonakdarhashemi M, Leung N, et al. Safety of Ketorolac in Primary Total Hip Arthroplasties: An Analysis of over 7,000 Cases. The Journal of Arthroplasty 2026. doi:10.1016/j.arth.2026.07.035

This retrospective analysis of over 7,000 primary total hip arthroplasties evaluated the association between perioperative ketorolac administration and acute kidney injury, stratified by baseline renal function and administration route. The study found no significant increase in AKI risk among patients with preexisting chronic kidney disease, suggesting ketorolac is safe for pain management in this population. These findings support the continued use of ketorolac in primary THA protocols without heightened concern for renal complications in CKD patients.

42. Sahhar M, Lewis AM, Achilova F, et al. The Growing Role of Large Language Models in Arthroplasty Manuscripts: High-Productivity Authors Lead the Way. The Journal of Arthroplasty 2026. doi:10.1016/j.arth.2026.07.041

This cross-sectional analysis quantified Large Language Model (LLM) utilization in arthroplasty manuscripts by comparing articles from pre-AI (2018-2022) and post-AI (2023-2025) eras. The study found a significant, nonlinear increase in AI-flagged articles, rising from less than 4.2% to 20.4% in 2025, with high-productivity authors leading this trend. These results highlight the rapid integration of AI tools into arthroplasty literature and suggest that author productivity is a key driver of AI adoption.

43. Saba BV, Montague M, Markowitz M, et al. Risk Factors for Readmission Following Same-Day Discharge in Primary Total Hip Arthroplasty. The Journal of Arthroplasty 2026. doi:10.1016/j.arth.2026.07.054

This retrospective cohort study compared risk factors for 90-day readmission between same-day discharge (SDD) and non-same-day discharge (NSDD) patients following primary total hip arthroplasty. The analysis revealed that specific patient risk factors exerted different magnitudes of influence on readmission rates in SDD versus NSDD cohorts. These findings imply that SDD selection criteria should be refined to account for risk factors that disproportionately affect early discharge patients to enhance postoperative safety.

44. Tan D, Anderson B, Kesick A, et al. Irritable Bowel Syndrome and Periprosthetic Joint Infection Risk Following Total Hip and Knee Arthroplasty. The Journal of Arthroplasty 2026. doi:10.1016/j.arth.2026.07.045

This study evaluated the risk of periprosthetic joint infection (PJI) in patients with irritable bowel syndrome (IBS) compared to those with inflammatory bowel disease (IBD) following total hip and knee arthroplasty. The key finding was that while IBD increased PJI risk after total knee arthroplasty, IBS was not associated with a significantly higher risk of PJI or reoperation. Clinically, this suggests that IBS should not be considered a contraindication for arthroplasty, unlike IBD, which carries a higher infection risk.

Creative Commons BY-NC 4.0

CC Creative Commons licence
BY Attribution — you must credit the source
NC NonCommercial — not for commercial use

Attribution-NonCommercial 4.0 International

Creative Commons Corporation ("Creative Commons") is not a law firm and does not provide legal services or legal advice. Distribution of Creative Commons public licenses does not create a lawyer-client or other relationship. Creative Commons makes its licenses and related information available on an "as-is" basis. Creative Commons gives no warranties regarding its licenses, any material licensed under their terms and conditions, or any related information. Creative Commons disclaims all liability for damages resulting from their use to the fullest extent possible.

Using Creative Commons Public Licenses

Creative Commons public licenses provide a standard set of terms and conditions that creators and other rights holders may use to share original works of authorship and other material subject to copyright and certain other rights specified in the public license below. The following considerations are for informational purposes only, are not exhaustive, and do not form part of our licenses.

Considerations for licensors: Our public licenses are intended for use by those authorized to give the public permission to use material in ways otherwise restricted by copyright and certain other rights. Our licenses are irrevocable. Licensors should read and understand the terms and conditions of the license they choose before applying it. Licensors should also secure all rights necessary before applying our licenses so that the public can reuse the material as expected. Licensors should clearly mark any material not subject to the license. This includes other CC- licensed material, or material used under an exception or limitation to copyright. More considerations for licensors: wiki.creativecommons.org/Considerations_for_licensors

Considerations for the public: By using one of our public licenses, a licensor grants the public permission to use the licensed material under specified terms and conditions. If the licensor's permission is not necessary for any reason--for example, because of any applicable exception or limitation to copyright--then that use is not regulated by the license. Our licenses grant only permissions under copyright and certain other rights that a licensor has authority to grant. Use of the licensed material may still be restricted for other reasons, including because others have copyright or other rights in the material. A licensor may make special requests, such as asking that all changes be marked or described. Although not required by our licenses, you are encouraged to respect those requests where reasonable. More considerations for the public: wiki.creativecommons.org/Considerations_for_licensees

Creative Commons Attribution-NonCommercial 4.0 International Public License

By exercising the Licensed Rights (defined below), You accept and agree to be bound by the terms and conditions of this Creative Commons Attribution-NonCommercial 4.0 International Public License ("Public License"). To the extent this Public License may be interpreted as a contract, You are granted the Licensed Rights in consideration of Your acceptance of these terms and conditions, and the Licensor grants You such rights in consideration of benefits the Licensor receives from making the Licensed Material available under these terms and conditions.

Section 1 -- Definitions.

a. Adapted Material means material subject to Copyright and Similar Rights that is derived from or based upon the Licensed Material and in which the Licensed Material is translated, altered, arranged, transformed, or otherwise modified in a manner requiring permission under the Copyright and Similar Rights held by the Licensor. For purposes of this Public License, where the Licensed Material is a musical work, performance, or sound recording, Adapted Material is always produced where the Licensed Material is synched in timed relation with a moving image.

b. Adapter's License means the license You apply to Your Copyright and Similar Rights in Your contributions to Adapted Material in accordance with the terms and conditions of this Public License.

c. Copyright and Similar Rights means copyright and/or similar rights closely related to copyright including, without limitation, performance, broadcast, sound recording, and Sui Generis Database Rights, without regard to how the rights are labeled or categorized. For purposes of this Public License, the rights specified in Section 2(b)(1)-(2) are not Copyright and Similar Rights.

d. Effective Technological Measures means those measures that, in the absence of proper authority, may not be circumvented under laws fulfilling obligations under Article 11 of the WIPO Copyright Treaty adopted on December 20, 1996, and/or similar international agreements.

e. Exceptions and Limitations means fair use, fair dealing, and/or any other exception or limitation to Copyright and Similar Rights that applies to Your use of the Licensed Material.

f. Licensed Material means the artistic or literary work, database, or other material to which the Licensor applied this Public License.

g. Licensed Rights means the rights granted to You subject to the terms and conditions of this Public License, which are limited to all Copyright and Similar Rights that apply to Your use of the Licensed Material and that the Licensor has authority to license.

h. Licensor means the individual(s) or entity(ies) granting rights under this Public License.

i. NonCommercial means not primarily intended for or directed towards commercial advantage or monetary compensation. For purposes of this Public License, the exchange of the Licensed Material for other material subject to Copyright and Similar Rights by digital file-sharing or similar means is NonCommercial provided there is no payment of monetary compensation in connection with the exchange.

j. Share means to provide material to the public by any means or process that requires permission under the Licensed Rights, such as reproduction, public display, public performance, distribution, dissemination, communication, or importation, and to make material available to the public including in ways that members of the public may access the material from a place and at a time individually chosen by them.

k. Sui Generis Database Rights means rights other than copyright resulting from Directive 96/9/EC of the European Parliament and of the Council of 11 March 1996 on the legal protection of databases, as amended and/or succeeded, as well as other essentially equivalent rights anywhere in the world.

l. You means the individual or entity exercising the Licensed Rights under this Public License. Your has a corresponding meaning.

Section 2 -- Scope.

a. License grant.

1. Subject to the terms and conditions of this Public License, the Licensor hereby grants You a worldwide, royalty-free, non-sublicensable, non-exclusive, irrevocable license to exercise the Licensed Rights in the Licensed Material to:

a. reproduce and Share the Licensed Material, in whole or in part, for NonCommercial purposes only; and

b. produce, reproduce, and Share Adapted Material for NonCommercial purposes only.

2. Exceptions and Limitations. For the avoidance of doubt, where Exceptions and Limitations apply to Your use, this Public License does not apply, and You do not need to comply with its terms and conditions.

3. Term. The term of this Public License is specified in Section 6(a).

4. Media and formats; technical modifications allowed. The Licensor authorizes You to exercise the Licensed Rights in all media and formats whether now known or hereafter created, and to make technical modifications necessary to do so. The Licensor waives and/or agrees not to assert any right or authority to forbid You from making technical modifications necessary to exercise the Licensed Rights, including technical modifications necessary to circumvent Effective Technological Measures. For purposes of this Public License, simply making modifications authorized by this Section 2(a) (4) never produces Adapted Material.

5. Downstream recipients.

a. Offer from the Licensor -- Licensed Material. Every recipient of the Licensed Material automatically receives an offer from the Licensor to exercise the Licensed Rights under the terms and conditions of this Public License.

b. No downstream restrictions. You may not offer or impose any additional or different terms or conditions on, or apply any Effective Technological Measures to, the Licensed Material if doing so restricts exercise of the Licensed Rights by any recipient of the Licensed Material.

6. No endorsement. Nothing in this Public License constitutes or may be construed as permission to assert or imply that You are, or that Your use of the Licensed Material is, connected with, or sponsored, endorsed, or granted official status by, the Licensor or others designated to receive attribution as provided in Section 3(a)(1)(A)(i).

b. Other rights.

1. Moral rights, such as the right of integrity, are not licensed under this Public License, nor are publicity, privacy, and/or other similar personality rights; however, to the extent possible, the Licensor waives and/or agrees not to assert any such rights held by the Licensor to the limited extent necessary to allow You to exercise the Licensed Rights, but not otherwise.

2. Patent and trademark rights are not licensed under this Public License.

3. To the extent possible, the Licensor waives any right to collect royalties from You for the exercise of the Licensed Rights, whether directly or through a collecting society under any voluntary or waivable statutory or compulsory licensing scheme. In all other cases the Licensor expressly reserves any right to collect such royalties, including when the Licensed Material is used other than for NonCommercial purposes.

Section 3 -- License Conditions.

Your exercise of the Licensed Rights is expressly made subject to the following conditions.

a. Attribution.

1. If You Share the Licensed Material (including in modified form), You must:

a. retain the following if it is supplied by the Licensor with the Licensed Material:

i. identification of the creator(s) of the Licensed Material and any others designated to receive attribution, in any reasonable manner requested by the Licensor (including by pseudonym if designated);

ii. a copyright notice;

iii. a notice that refers to this Public License;

iv. a notice that refers to the disclaimer of warranties;

v. a URI or hyperlink to the Licensed Material to the extent reasonably practicable;

b. indicate if You modified the Licensed Material and retain an indication of any previous modifications; and

c. indicate the Licensed Material is licensed under this Public License, and include the text of, or the URI or hyperlink to, this Public License.

2. You may satisfy the conditions in Section 3(a)(1) in any reasonable manner based on the medium, means, and context in which You Share the Licensed Material. For example, it may be reasonable to satisfy the conditions by providing a URI or hyperlink to a resource that includes the required information.

3. If requested by the Licensor, You must remove any of the information required by Section 3(a)(1)(A) to the extent reasonably practicable.

4. If You Share Adapted Material You produce, the Adapter's License You apply must not prevent recipients of the Adapted Material from complying with this Public License.

Section 4 -- Sui Generis Database Rights.

Where the Licensed Rights include Sui Generis Database Rights that apply to Your use of the Licensed Material:

a. for the avoidance of doubt, Section 2(a)(1) grants You the right to extract, reuse, reproduce, and Share all or a substantial portion of the contents of the database for NonCommercial purposes only;

b. if You include all or a substantial portion of the database contents in a database in which You have Sui Generis Database Rights, then the database in which You have Sui Generis Database Rights (but not its individual contents) is Adapted Material; and

c. You must comply with the conditions in Section 3(a) if You Share all or a substantial portion of the contents of the database.

For the avoidance of doubt, this Section 4 supplements and does not replace Your obligations under this Public License where the Licensed Rights include other Copyright and Similar Rights.

Section 5 -- Disclaimer of Warranties and Limitation of Liability.

a. UNLESS OTHERWISE SEPARATELY UNDERTAKEN BY THE LICENSOR, TO THE EXTENT POSSIBLE, THE LICENSOR OFFERS THE LICENSED MATERIAL AS-IS AND AS-AVAILABLE, AND MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND CONCERNING THE LICENSED MATERIAL, WHETHER EXPRESS, IMPLIED, STATUTORY, OR OTHER. THIS INCLUDES, WITHOUT LIMITATION, WARRANTIES OF TITLE, MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT, ABSENCE OF LATENT OR OTHER DEFECTS, ACCURACY, OR THE PRESENCE OR ABSENCE OF ERRORS, WHETHER OR NOT KNOWN OR DISCOVERABLE. WHERE DISCLAIMERS OF WARRANTIES ARE NOT ALLOWED IN FULL OR IN PART, THIS DISCLAIMER MAY NOT APPLY TO YOU.

b. TO THE EXTENT POSSIBLE, IN NO EVENT WILL THE LICENSOR BE LIABLE TO YOU ON ANY LEGAL THEORY (INCLUDING, WITHOUT LIMITATION, NEGLIGENCE) OR OTHERWISE FOR ANY DIRECT, SPECIAL, INDIRECT, INCIDENTAL, CONSEQUENTIAL, PUNITIVE, EXEMPLARY, OR OTHER LOSSES, COSTS, EXPENSES, OR DAMAGES ARISING OUT OF THIS PUBLIC LICENSE OR USE OF THE LICENSED MATERIAL, EVEN IF THE LICENSOR HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH LOSSES, COSTS, EXPENSES, OR DAMAGES. WHERE A LIMITATION OF LIABILITY IS NOT ALLOWED IN FULL OR IN PART, THIS LIMITATION MAY NOT APPLY TO YOU.

c. The disclaimer of warranties and limitation of liability provided above shall be interpreted in a manner that, to the extent possible, most closely approximates an absolute disclaimer and waiver of all liability.

Section 6 -- Term and Termination.

a. This Public License applies for the term of the Copyright and Similar Rights licensed here. However, if You fail to comply with this Public License, then Your rights under this Public License terminate automatically.

b. Where Your right to use the Licensed Material has terminated under Section 6(a), it reinstates:

1. automatically as of the date the violation is cured, provided it is cured within 30 days of Your discovery of the violation; or

2. upon express reinstatement by the Licensor.

For the avoidance of doubt, this Section 6(b) does not affect any right the Licensor may have to seek remedies for Your violations of this Public License.

c. For the avoidance of doubt, the Licensor may also offer the Licensed Material under separate terms or conditions or stop distributing the Licensed Material at any time; however, doing so will not terminate this Public License.

d. Sections 1, 5, 6, 7, and 8 survive termination of this Public License.

Section 7 -- Other Terms and Conditions.

a. The Licensor shall not be bound by any additional or different terms or conditions communicated by You unless expressly agreed.

b. Any arrangements, understandings, or agreements regarding the Licensed Material not stated herein are separate from and independent of the terms and conditions of this Public License.

Section 8 -- Interpretation.

a. For the avoidance of doubt, this Public License does not, and shall not be interpreted to, reduce, limit, restrict, or impose conditions on any use of the Licensed Material that could lawfully be made without permission under this Public License.

b. To the extent possible, if any provision of this Public License is deemed unenforceable, it shall be automatically reformed to the minimum extent necessary to make it enforceable. If the provision cannot be reformed, it shall be severed from this Public License without affecting the enforceability of the remaining terms and conditions.

c. No term or condition of this Public License will be waived and no failure to comply consented to unless expressly agreed to by the Licensor.

d. Nothing in this Public License constitutes or may be interpreted as a limitation upon, or waiver of, any privileges and immunities that apply to the Licensor or You, including from the legal processes of any jurisdiction or authority.

Creative Commons is not a party to its public licenses. Notwithstanding, Creative Commons may elect to apply one of its public licenses to material it publishes and in those instances will be considered the “Licensor.” The text of the Creative Commons public licenses is dedicated to the public domain under the CC0 Public Domain Dedication. Except for the limited purpose of indicating that material is shared under a Creative Commons public license or as otherwise permitted by the Creative Commons policies published at creativecommons.org/policies, Creative Commons does not authorize the use of the trademark "Creative Commons" or any other trademark or logo of Creative Commons without its prior written consent including, without limitation, in connection with any unauthorized modifications to any of its public licenses or any other arrangements, understandings, or agreements concerning use of licensed material. For the avoidance of doubt, this paragraph does not form part of the public licenses.

Creative Commons may be contacted at creativecommons.org.