What's New — Spine — October 2026¶
29 new articles published this month.
Themes: Degenerative Lumbar Surgery Decisions · Cervical Deformity and Arthroplasty · Spine Trauma and Fracture Care · Rib Fracture Stabilization Evidence · Alignment, Anatomy and Implants · Brachial Plexus Correspondence
Digest generated 2026-11-04 16:22:16+00:00.
Highlights¶
Degenerative Lumbar Surgery Decisions¶
This month's digest highlights refinement of decision-making in degenerative lumbar disease. In multilevel degenerative lumbar stenosis, sequential preoperative assessment with walking load testing and selective nerve root blocks meaningfully alters which levels ultimately undergo endoscopic decompression [2]. For L5, S1 disc herniation, meta-analytic evidence compares transforaminal with interlaminar endoscopic discectomy [25], while a separate systematic review addresses unilateral biportal endoscopy versus percutaneous transforaminal endoscopic discectomy for far lateral herniations [26]. Broader context is provided by a state-of-the-evidence review of endoscopic spine surgery in the United States, noting comparable outcomes to microscopic techniques but training and reimbursement barriers [6]. Finally, screening gaps persist: many patients undergoing lumbar fusion for stenosis with spondylolisthesis are not screened or treated for osteoporosis despite its impact on complications [3].
Cervical Deformity and Arthroplasty¶
Cervical spine topics span motion preservation, deformity, and alignment. A comprehensive review of cervical disc arthroplasty confirms outcomes comparable to ACDF with durable motion preservation, lower adjacent-segment pathology, and expanding indications including multilevel and hybrid constructs [5]. Adult cervical deformity evaluation now relies on standing full-spine radiographs with specific alignment targets and the morphology-based Kim-ISSG classification to guide surgical planning [7]. Complementing this, sagittal alignment in cervical fusion is strongly tied to patient-reported outcomes, with T1 slope-cervical lordosis mismatch and C2-C7 sagittal vertical axis correlating with disability; alignment-conscious planning should account for global spinopelvic balance [8]. Related work examines how corrective spinal alignment surgery influences range of motion after reverse total shoulder arthroplasty, underscoring cervicothoracic interplay [23].
Spine Trauma and Fracture Care¶
Traumatic spine injury receives substantial attention. Delayed flexion-extension radiographs after blunt cervical trauma remain diagnostically useful for detecting unstable ligamentous injuries in alert patients with normal initial imaging [13]. For thoracolumbar injuries, MRI changes management in a meaningful proportion of CT-defined AO Spine A/B fractures by characterizing the posterior ligamentous complex [18], and percutaneous fixation serves as safe definitive damage-control care for AO type B fractures in polytrauma patients [15]. A remote review protocol for non-operative thoracolumbar compression fractures safely reduced in-person consultations without complications [12]. Epidemiologic data from Ethiopia describe differences between single- and multi-level traumatic spinal fractures [14], and electric micromobility devices are driving escalating spine injury presentations [16]. Geriatric odontoid fracture management continues to show debated survival and quality-of-life trade-offs between surgical and conservative care [20].
Rib Fracture Stabilization Evidence¶
Several articles address surgical stabilisation of rib fractures (SSRF) within trauma care. A national TQIP analysis found SSRF associated with lower mortality among severe traumatic brain injury patients with flail chest, though not among non-TBI patients [19]. Paediatric practice appears to diverge from the adult trend, with SSRF performed rarely and at stable rates in children [21]. A prospective cohort study examined patient-centered outcomes after SSRF, adding patient-reported data to a field dominated by resource-utilisation endpoints [22]. Two accompanying commentaries frame the broader tension in trauma workup, moving from missed injury to overdiagnosis [29], and methodologic caution regarding SHAP machine-learning explanations, which explain model behaviour rather than establish statistical correlations [28].
Alignment, Anatomy and Implants¶
Anatomic and biomechanical themes round out the month. A detailed review covers sacral and lumbosacral junction anatomic variations, including sacral dysmorphism and Bertolotti syndrome, with direct implications for surgical planning and instrumentation [1]. Quantitative CT analysis links greater pelvic tilt to regional reductions in S1 trabecular bone mineral density, relevant to sacral insufficiency fracture risk and spinopelvic loading [17]. In adult spinal deformity, commentary explores whether T4-L1 pelvic angle normalization refines proportional alignment strategies and reduces mechanical complications after long-segment fusion [11]. Metal hypersensitivity following spinal implants is systematically reviewed, emphasizing its infection-mimicking presentation and limited diagnostic evidence [27]. Historical and health-system pieces include a presidential address on scoliosis care [24], value-based payment model evolution for spinal fusion [10], and a paediatric orthopaedic screening protocol correction [9].
Brachial Plexus Correspondence¶
A single correspondence item critiques a narrative review proposing that anatomic predisposition and inherent neurological vulnerability, analogous to neurogenic thoracic outlet syndrome, explain some obstetric brachial plexus injuries. The letter argues the nerve-fragility hypothesis remains unsubstantiated and raises concern that such reasoning could be misused in medicolegal contexts to contest causation when dystocia or traction is absent [4].
Articles by Theme¶
Degenerative Lumbar Surgery Decisions (5)¶
2. Long Y, Li L, Zhong Y, et al. Clinical decision-making for decompression-level selection in multilevel degenerative lumbar spinal stenosis: a retrospective cohort study. International Orthopaedics 2026. doi:10.1007/s00264-026-07065-x
This retrospective cohort of 168 patients with multilevel degenerative lumbar spinal stenosis tracked how planned endoscopic decompression levels changed across sequential preoperative assessments, including walking load testing and selective nerve root block, over 24 months. The study characterized the frequency of level-selection changes and events at initially untreated candidate levels. Clinically, the findings inform a staged decision-making approach to selecting decompression levels in multilevel stenosis.
3. Mao E, Ceballos-Alvarez KE, Thai S, et al. Osteoporosis Screening Gaps Among Patients Undergoing Lumbar Fusion Surgery. Journal of the American Academy of Orthopaedic Surgeons 2026. doi:10.5435/jaaos-d-26-00335
Using the TriNetX database, this study assessed dual-energy X-ray absorptiometry (DEXA) screening rates within 2 years before lumbar fusion among over 46,000 patients older than 50 years undergoing surgery for stenosis with degenerative spondylolisthesis, plus treatment rates after diagnosis. The key finding was that osteoporosis screening and treatment remain substantially inadequate despite elevated complication risk after fusion. Clinically, routine preoperative DEXA screening and treatment initiation should be prioritized in this population.
6. Kim MT, Lee S, Goh GS, et al. Endoscopic Spine Surgery: Evidence Maturity and the Path Forward in the United States. Journal of Bone and Joint Surgery 2026. doi:10.2106/jbjs.26.00630
This review evaluates the evidence maturity and adoption barriers for endoscopic spine surgery (ESS) in the United States, noting comparable outcomes to microscopic/tubular techniques for lumbar disc herniation and stenosis but a limited cervical and thoracic evidence base. U.S. adoption is constrained by a steep learning curve, limited training pathways, and reimbursement challenges, though ambulatory surgery center migration and value-based models may help. Clinically, broader integration requires standardised training, multi-institutional registries, and alignment with payment models such as the 2026 Medicare TEAM program.
25. Shi H, Sun X, Yang K, et al. Transforaminal versus interlaminar endoscopic lumbar discectomy for L5–S1 lumbar disc herniation: meta-analysis. EFORT Open Reviews 2026. doi:10.1530/eor-2025-0002
The authors performed a meta-analysis comparing transforaminal versus interlaminar endoscopic lumbar discectomy for L5, S1 disc herniation. Pooled results showed both approaches yield comparable clinical outcomes, with differences mainly in operative time, complication profiles, and recurrence. Approach selection can therefore be tailored to anatomy and surgeon expertise rather than one technique being universally superior.
26. Lin K, Yu X, Wang S, et al. Unilateral biportal endoscopy versus percutaneous transforaminal endoscopic discectomy for far lateral lumbar disc herniation: a systematic review and meta-analysis. EFORT Open Reviews 2026. doi:10.1530/eor-2026-0035
This systematic review and meta-analysis compared unilateral biportal endoscopy (UBE) with percutaneous transforaminal endoscopic discectomy (PTED) for far lateral lumbar disc herniation. UBE achieved similar pain relief and functional recovery but offered better visualization and comparable or lower complication and recurrence rates. Both minimally invasive options are effective, so the choice may hinge on surgeon experience and facility resources.
Cervical Deformity and Arthroplasty (4)¶
5. Kim MT, Lee S, Goh GS, et al. Cervical Disc Arthroplasty: Evolution, Evidence, and Future Directions in Motion-Preservation Surgery. Journal of Bone and Joint Surgery 2026. doi:10.2106/jbjs.26.00323
This review summarizes the evolution and evidence for cervical disc arthroplasty (CDA), showing outcomes comparable to ACDF for 1- and 2-level degenerative disc disease with durable motion preservation and modestly lower adjacent-segment pathology rates. It also highlights promising short- to intermediate-term results for expanded indications such as multilevel and hybrid constructs. Clinically, growing CDA use demands standardised failure reporting and evidence-based revision algorithms.
7. Dekhne MS, Kazarian GS, Kim HJ. Adult Cervical Deformity: Contemporary Evaluation, Classification, and Surgical Decision-Making. Journal of Bone and Joint Surgery 2026. doi:10.2106/jbjs.26.00473
This review outlines contemporary evaluation of adult cervical deformity, emphasizing standing full-spine radiographs and key alignment targets (cSVA ≤40 mm, T1S−CL <15°, CBVA −10° to +10°) linked to better patient-reported outcomes. The Kim-ISSG morphology-based classification (flat neck, focal, cervicothoracic, coronal/complex) offers a reproducible, reliable framework for operative planning. Clinically, surgical decisions should integrate flexibility, neurologic status, global alignment, bone quality, and patient-specific factors, though prospective validation of the classification's impact is needed.
8. Basques BA, Sadh P, Kim J, et al. Sagittal Alignment in Cervical Spine Fusion. Journal of Bone and Joint Surgery 2026. doi:10.2106/jbjs.26.00362
This review synthesizes evidence on sagittal alignment in cervical fusion, showing that greater T1 slope-cervical lordosis mismatch and larger C2-C7 sagittal vertical axis correlate with worse disability and quality of life. Cervical alignment must be interpreted in the context of global thoracic and spinopelvic balance and compensatory mechanisms. Clinically, alignment-conscious surgical planning tailored to deformity morphology and flexibility reduces postoperative imbalance and adjacent-segment disease risk.
23. Takayama K, Ito H. Effect of Corrective Spinal Alignment Surgery on Postoperative Range of Motion Following Reverse Total Shoulder Arthroplasty. JSES Reviews, Reports, and Techniques 2026. doi:10.1016/j.xrrt.2026.100893
This study examined whether corrective spinal alignment surgery affects postoperative range of motion after reverse total shoulder arthroplasty. Corrective spinal alignment surgery influenced postoperative shoulder range of motion outcomes following reverse arthroplasty, indicating that sagittal spinal deformity and its correction affect shoulder prosthetic function. Spinal alignment should be assessed and optimised when planning reverse total shoulder arthroplasty in patients with spinal deformity.
Spine Trauma and Fracture Care (7)¶
12. Nie J, Di Gerolamo J, Truong N, et al. Implementation of a thoracolumbar compression fracture remote review protocol safely reduces in-person spine consultations. Injury 2026. doi:10.1016/j.injury.2026.113500
This retrospective single-center study compared formal bedside spine consultations with a remote review protocol by an on-call spine resident for acute thoracolumbar compression fractures in 120 adult trauma patients. No TLCF-related neurological or brace-related complications occurred in either cohort, and time to discharge was similar between groups. Remote review appears safe for low-risk injuries and can reduce in-person spine consultations without compromising care.
13. EMIN L, LAFONT C, RAVAILLAULT S, et al. Diagnostic evaluation of delayed flexion-extension radiographs after blunt cervical spine trauma: A prospective study. Injury 2026. doi:10.1016/j.injury.2026.113502
This prospective single-center study evaluated a 20-year delayed flexion-extension radiography pathway for alert patients with persistent neck pain and normal initial imaging after blunt cervical spine trauma (n=303), alongside 24 surgically treated unstable ligamentous injuries. It assessed whether delayed dynamic radiographs detect surgically relevant instability missed on initial emergency assessment. The findings inform the ongoing debate about the diagnostic role of delayed dynamic imaging in clearing the cervical spine.
14. Mengistu MG, Yazdanpanah S, Damenu H, et al. Comparing the epidemiology and associations of single- versus multi-level traumatic spinal fractures at a tertiary referral hospital in Ethiopia. Injury 2026. doi:10.1016/j.injury.2026.113518
This study compared 85 single-level and 138 multi-level traumatic spinal fractures using a tertiary hospital registry in Ethiopia (2023-2026). Multi-level fractures were more often caused by blunt trauma and less by road-traffic accidents, and were associated with more severe neurological injury. The findings highlight injury-pattern differences relevant to trauma system planning and policy in low-resource settings.
15. Giorgi PD, Ramponi A, Legrenzi S, et al. Percutaneous fixation as definitive care for AO spine type B thoracolumbar fractures in polytrauma patients. Injury 2026. doi:10.1016/j.injury.2026.113503
This retrospective study of 43 polytrauma patients with 48 AO Spine Type B thoracolumbar fractures evaluated percutaneous pedicle screw fixation as definitive treatment, traditionally reserved for open posterior fusion. With a minimum 12-month follow-up, the study assessed operative, clinical, and radiological outcomes in this hemodynamically vulnerable population. The results support percutaneous stabilisation as a minimally invasive damage-control strategy enabling early mobilization in polytrauma patients.
16. Tannoury T, El-Hajj N, Dhunna DP, et al. Riding the shockwave: Escalating spine injuries from electric micromobility devices in the United States. Injury 2026. doi:10.1016/j.injury.2026.113525
This retrospective study analyzed National Electronic Injury Surveillance System data (2015-2024) to characterize longitudinal trends in spine injuries from electric scooters, bicycles, hoverboards, and skateboards. It documents escalating emergency department presentations of micromobility-related spinal injuries, which occur disproportionately compared with traditional bicycles due to device design and riding posture. Clinicians and policymakers should anticipate growing spine trauma caseloads and develop targeted prevention strategies as ridership expands.
18. Quilichini J, Dien E, Ranc P, et al. Impact of MRI on the management of CT-defined AO spine A/B thoracolumbar fractures. Injury 2026. doi:10.1016/j.injury.2026.113499
In 158 neurologically intact patients with AO Spine A/B thoracolumbar fractures, emergency MRI added to CT was evaluated for its effect on treatment decisions (conservative vs. minimally invasive vs. invasive). MRI detected more fractured vertebrae than CT and changed the treatment strategy in 19 patients, with predictors of management change identified. These findings support a selective, indication-driven use of MRI in thoracolumbar trauma, as it meaningfully alters management in a subset of patients.
20. Oberthür S, Singer A, Roch PJ, et al. Survival and quality of life after treatment of geriatric odontoid fractures. Injury 2026. doi:10.1016/j.injury.2026.113534
In 93 geriatric patients (mean age ~79) with odontoid fractures, mostly Type II, treated conservatively or surgically (2017-2020), survival and quality of life (VAS, NDI, SF-36) were assessed with Kaplan-Meier/Cox analyses. Surgical treatment reduced nonunion but did not clearly improve survival or patient-reported outcomes relative to conservative care in this comorbid population. Treatment decisions should be individualized, weighing fracture stability against surgical risk rather than assuming surgery improves survival or quality of life.
Rib Fracture Stabilization Evidence (5)¶
19. Nasef H, Chin B, Nunes N, et al. Surgical stabilization of rib fractures in adult trauma patients with flail chest with or without severe traumatic brain injury: A national analysis. Injury 2026. doi:10.1016/j.injury.2026.113602
Using the ACS-TQIP dataset (2017-2021), outcomes of surgical stabilisation of rib fractures (SSRF) versus non-operative management were compared in non-TBI patients with isolated flail chest and in severe TBI patients with flail chest. SSRF did not significantly reduce mortality in non-TBI patients but was associated with lower mortality in severe TBI patients, though it prolonged ICU length of stay in both groups. SSRF may be considered in flail chest patients with severe TBI, whereas its benefit in non-TBI patients remains uncertain.
21. Hamdan HS, Halabi M, Nouiri AE, et al. Surgical rib fixation in pediatric patients: Following the adult trend or a different story?. Injury 2026. doi:10.1016/j.injury.2026.113645
Among 28,465 paediatric rib fracture patients in TQIP (2017-2023), only 87 (0.31%) underwent surgical stabilisation of rib fractures (SSRF), with paediatric rates stable over time while adult SSRF use increased. Pediatric SSRF patients were older and more severely injured, with a high prevalence of flail chest, suggesting a distinct, highly selected indication profile. SSRF in children remains rare and should be reserved for severe injury patterns rather than extrapolated from adult practice trends.
22. Laredo J, Walker M, Wilson F, et al. Patient Centered Outcomes After Surgical Stabilization of Rib Fractures: A Prospective Cohort Study. Injury 2026. doi:10.1016/j.injury.2026.113743
This prospective cohort study evaluated patient-centered outcomes (pain, function, quality of life) after surgical stabilisation of rib fractures (SSRF). SSRF was associated with improvements in patient-reported pain and functional measures, extending beyond traditional endpoints such as mortality and ventilator days. These results support SSRF as a patient-relevant intervention and highlight the value of incorporating patient-reported outcome measures in rib fracture research.
28. Deng J, Heybati K. SHAP is meant for explaining model behaviors, not identifying statistical correlations. Injury 2026. doi:10.1016/j.injury.2026.113846
This methodological commentary argues that SHAP values, increasingly used in trauma and orthopaedic prediction studies, explain individual model predictions and should not be interpreted as measures of statistical association or causal importance. The authors illustrate how SHAP-based feature rankings can diverge from correlation-based inference and be misreported in the literature. Researchers should use SHAP strictly for model interpretation and reserve statistical association testing for appropriate inferential methods.
29. de Miguel Satué F, Babunashvili M, Haque S, et al. From missed injury to overdiagnosis. Injury 2026. doi:10.1016/j.injury.2026.113841
This perspective piece examines the tension between missed injuries and overdiagnosis in trauma care, tracing how heightened imaging sensitivity and defensive practice shift errors from under- to over-diagnosis. The authors discuss the clinical and system-level harms of overdiagnosis alongside the persistent risk of missed injury. Balanced diagnostic strategies and clinical judgment remain essential to avoid replacing one error mode with another.
Alignment, Anatomy and Implants (7)¶
1. Al-Amoodi MJH, Theologis AA. Anatomic Variations of the Sacrum and Lumbosacral Junction: Clinical Implications for Orthopaedic and Spine Surgeons. Journal of the American Academy of Orthopaedic Surgeons 2026. doi:10.5435/jaaos-d-26-00142
This review describes anatomic variations of the sacrum and lumbosacral junction, including sacral dysmorphism and lumbosacral transitional anatomy (Bertolotti syndrome), with their associated imaging findings and classification. Key findings emphasize that these variants are common and heterogeneous, each affecting surgical planning, instrumentation strategies, and outcomes. Clinically, surgeons performing sacropelvic injury fixation or lumbosacral reconstruction must recognize these variations to optimise operative decision-making.
9. Scheckel B, Naumann M, Simic D, et al. Correction: Supplementary orthopaedic screening for children and adolescents to prevent permanent skeletal deformities – protocol for the “OrthoKids” study. BMC Musculoskeletal Disorders 2026. doi:10.1186/s12891-026-10071-0
This is a correction notice for the OrthoKids study protocol, amending two statements in the original publication. The assumed dropout rate was corrected from 20% to 30%, and an imprecise description of the multiple imputation approach for missing data was revised. The corrections matter for readers assessing the study's sample size justification and planned statistical analysis.
10. Rubin I, Bruggeman A, Bozic KJ. Payment Model Evolution for Spinal Fusions. Journal of the American Academy of Orthopaedic Surgeons 2026. doi:10.5435/jaaos-d-26-00102
This review traces the evolution of US value-based payment models using spinal fusion as a case study, comparing BPCI-A, TEAM, ACCESS, the Ambulatory Specialty Model, and proposed condition-based bundles. It finds a progression from voluntary bundled payments toward mandatory participation models with increasing requirements for specialist accountability and primary care integration. Spine surgeons and health systems should prepare for mandatory episode-based payment structures that tie reimbursement to quality measurement and care coordination.
11. Al Abdallat A. Proportional Harmony or Radiographic Precision? Interpreting the Role of T4-L1 Pelvic Angle Normalization in Long-Segment Adult Spinal Deformity Fusion. Journal of Bone and Joint Surgery 2026. doi:10.2106/jbjs.26.00295
This commentary interprets a study by Mohanty et al. examining whether normalization of the T4-L1 pelvic angle relative to the L1-pelvic angle reduces mechanical complications and improves patient-reported outcomes after long-segment adult spinal deformity fusion. It situates the findings within the shift from global sagittal metrics toward proportional, pelvic incidence-based alignment strategies. The commentary suggests that proportional alignment targets may refine surgical planning, though the clinical value of radiographic normalization must be weighed against patient-centered outcomes.
17. Klockner FS, von Stosch D, Jäckle K, et al. The influence of pelvic tilt on regional bone mineral density of the sacrum: A quantitative CT analysis. Injury 2026. doi:10.1016/j.injury.2026.113517
In 204 patients with CT and standing radiographs, quantitative CT measured trabecular volumetric BMD at five S1 regions (lateral masses, alae, vertebral body) and related these to pelvic tilt measured on radiographs. Greater pelvic tilt was associated with altered regional sacral BMD distribution, reflecting changed load transfer through the lumbosacral junction. Pelvic tilt may serve as a marker for identifying patients at risk of sacral insufficiency fractures and should be considered when assessing sacral bone quality.
24. Leyland NA. Presidential Installation Speech, Annual Clinical and Scientific Meeting, 2026. Journal of Obstetrics and Gynaecology Canada 2026. doi:10.1016/j.jogc.2026.103545
This presidential address reflects on the historical neglect of scoliosis within orthopaedic training and the evolution of spinal deformity care over the author's 25-year career. It emphasizes that treatment principles must vary with the etiology and magnitude of the deformity and notes growing interest but persistent knowledge gaps. The address underscores the need for improved education in spinal deformity surgery among orthopaedic residents.
27. Abbo J, Thomas J, Stipho C, et al. Metal Hypersensitivity Reactions Following Spinal Implants. JBJS Reviews 2026. doi:10.2106/jbjs.rvw.26.00099
A systematic review of 15 studies (19 patients) characterized the clinical presentation, diagnostic workup, and outcomes of metal hypersensitivity reactions after spinal implant surgery. Reactions typically presented with rash, pain, or effusion mimicking infection or mechanical failure, and diagnosis relied on patch testing, lymphocyte transformation testing, and implant revision in most cases. Clinicians should consider metal hypersensitivity in the differential for unexplained symptoms after spinal instrumentation, though evidence remains limited to case-level data.
Brachial Plexus Correspondence (1)¶
4. Bahm J. Re. Beaumont et al. Anatomical predisposition and neurological vulnerability to brachial plexus birth injury: a contemporary narrative review. Journal of Hand Surgery (European Volume) 2026. doi:10.1177/17531934261488677
This letter critiques Beaumont et al.'s hypothesis that inherent nerve tissue fragility and anatomic predisposition explain some obstetric brachial plexus injuries, analogous to neurogenic thoracic outlet syndrome. The author argues the hypothesis is unsubstantiated and could be exploited in litigation to defend obstetricians by shifting burden of proof to parents. Clinically, the author cautions against adopting unproven fragility theories into the medicolegal framework surrounding birth injuries.