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This is the clinical evidence summary written for health professionals. It is technical, and it lists the research this page was built from. You do not need to read it to understand your treatment or to make a decision about it.

Overview¶

• Distal clavicle resection combined with antibiotics halted osteolysis in a case of Propionibacterium acnes–mediated distal clavicular osteolysis, with the patient remaining symptom-free at 10 months post-surgery [1].
• Patients undergoing arthroscopic distal clavicle excision via the direct approach for acromioclavicular joint pathology can expect a faster return to activities compared with the open procedure, while obtaining similar long-term outcomes [2].
• Open or arthroscopic distal clavicle resection is necessary to relieve symptoms in appropriately selected patients [4].
• Late loss of reduction was common in acromioclavicular joint dislocations, but clavicular resection reliably produced significant improvement in patients with persistent pain or posttraumatic arthritis [5].
• Arthroscopic distal clavicle resection has provided more 'good or excellent' results than the open procedure, though this finding is comprised of low-level evidence [8].
• A well-performed distal clavicle excision will likely perform better than a poorly performed one, regardless of whether an open or arthroscopic approach is chosen [9].
• Excision of the outer end of the clavicle is preferred for old acromioclavicular joint dislocations, while open reduction and internal fixation are not recommended due to complications and poor functional results [13].
• For chronic symptomatic acromioclavicular joint injuries, partial claviculectomy is believed to be the best procedure, offering negligible morbidity and rapid return to function [14].
• Both arthroscopic and open distal clavicle excisions provide significant pain reduction at 1 year with no significant difference in outcome measures between groups, except for VAS pain score improvement [17].
• Routine distal clavicle excision is not absolutely necessary in patients with symptomatic acromioclavicular joint osteoarthritis undergoing arthroscopic rotator cuff repair [20].
• Total claviculectomy is a possible treatment option for chronic clavicular dislocation, yielding excellent outcomes and high patient satisfaction [22].
• Total claviculectomy yielded good results for patients with chronic osteitis and malignancy but unsatisfying results for those with chronic posttraumatic pain, despite full range of motion being regained in all cases [27].

Anatomy & Pathophysiology¶

• A precise, easy to use and low-cost non-invasive method able to draw and analyze the kinematics of the shoulder complex has not been developed yet [29].
• Normative kinematic values of scapulothoracic movements in the shoulder girdle have been provided [30].
• No reconstruction strategy completely restores the shoulder girdle to its preinjured state, although each technique restores different elements of joint kinematics [31].
• The trapezoid and conoid ligaments have unique functions in normal shoulder kinematics because of their anatomic attachments [32].
• Kinematic changes could be a potential source of pain and dysfunction in the shoulder with AC joint dislocation [33].
• Scapular and clavicular kinematics were affected in AC separation models [34].
• A comprehensive clinical approach emphasizing the evaluation of the extent of the anatomic injury and understanding its mechanical consequences regarding shoulder and arm function is a key in the development of guidelines for developing operative or non-operative treatment protocols and for establishing outcomes of the treatment protocols [35].
• The inconsistency of AC joint testing parameters and the lack of thorough translation studies indicate a necessity for increased attention in the overall assessment of shoulder stability to close the gap in the foundational biomechanical research [36].
• Anatomically, the pectoralis minor tendon provides sufficient tissue length, excursion, and width [37].
• Biomechanically, the pectoralis minor tendon is as strong as the coracoacromial ligament [37].
• No significant biomechanical differences in displacement or stiffness were seen between the anatomical landmark technique and the coracoid-based landmarks technique for coracoclavicular stabilization [38].
• New surgical techniques continue to evolve as more biomechanical data emerge and kinematic understanding improves [39].
• Emerging concepts and strategies regarding horizontal and rotational instability and scapular biomechanics aim to lay the foundation for future studies aimed at improving treatment outcomes and patient management [40].
• Preliminary findings revealed no detectable differences between surgically reconstructed and uninjured sides in ACJ biomechanics, range of motion, and isometric strength [41].
• Nonoperatively treated shoulders showed increased internal rotation, upward rotation, and posterior tilting [41].
• Type I and II acromioclavicular joint disruptions impair long-term shoulder function in about half of patients 10 years after injury [43].
• At 150 to 200 N of loading, CAL excision and acromioplasty increase the rotator cuff force required to maintain normal glenohumeral biomechanics by 25% to 30% [44].
• Centre of pressure measurement detected sensorimotor functional deficits following surgical treatment of the shoulder joint in patients with confirmed successful clinical and functional outcomes [45].

Classification¶

• The ISAKOS Upper Extremity Committee suggests adding grade IIIA and grade IIIB injuries to a modified Rockwood classification to distinguish between stable type III injuries and unstable grade III injuries with therapy-resistant scapular dysfunction and overriding clavicle [50].
• Methods to diagnose both superior and posterior translation of the clavicle need further debate [15].
• Patients with displacement greater than 100% of the thickness of the distal clavicle had poorer postoperative clinical outcomes [6].
• Horizontal instability of the clavicle is evident with distal clavicle resection of greater than 10 mm [11].
• Simple excision of the outer end of the clavicle has yielded satisfactory results in this group of patients, with no residual upward displacement disturbing the patients [7].
• Excision of the outer end of the clavicle is preferred for old dislocations, while open reduction and internal fixation are not recommended due to complications and poor functional results [13].
• Severe chronic symptomatic AC joint separations (Rockwood types III through V) can be repaired entirely by arthroscopy safely and effectively by transferring the coracoacromial ligament with a bone block in the distal clavicle [48].
• Incomplete excision and regrowth of the distal clavicle are the most common causes of revision [10].
• The combination of distal clavicle resection and antibiotics halted the osteolysis, and the patient has remained symptom free at 10 months after surgery [1].
• The case highlights the need to consider Gorham-Stout disease in patients presenting with massive osteolysis after shoulder surgery [3].

Clinical Presentation¶

• Distal clavicle osteolysis can be mediated by Propionibacterium acnes [1].
• Massive osteolysis may occur as a complication following shoulder surgery, such as posterior shoulder capsulorrhaphy [3].
• Segmental fractures of the clavicle are easily missed and may present with acromioclavicular joint disruption [21].
• Late loss of reduction is common in acromioclavicular joint dislocations [5].
• Patients with displacement greater than 100% of the thickness of the distal clavicle have poorer postoperative clinical outcomes [6].
• Subacromial osteolysis following hook plate fixation for acromioclavicular dislocation has a relatively high and variable incidence [12].
• The primary factor influencing the reported incidence of subacromial osteolysis is the radiological assessment method [12].
• Clavicular tunnel widening was observed in 70% of patients at final follow-up after coracoclavicular stabilization surgery [16].
• Clavicular tunnel widening has a higher prevalence in chronic cases than in acute cases [16].
• Radiological assessment may show a statistically significant immediate superior clavicular displacement after hardware removal following acromioclavicular joint stabilization, with an increased incidence in the first year following stabilization [18].
• Distal clavicle fracture is a potential complication of misidentification of the AC joint and subsequent aggressive burring during shoulder arthroscopy [26].

Investigations¶

• Distal clavicle resection combined with antibiotics halted osteolysis in a case of Propionibacterium acnes–mediated distal clavicular osteolysis [1].
• Massive osteolysis after shoulder surgery requires consideration of Gorham-Stout disease as a diagnosis [3].
• Late loss of reduction was common in acromioclavicular joint dislocations, while clavicular resection reliably produced significant improvement in patients with persistent pain or posttraumatic arthritis [5].
• Patients with displacement greater than 100% of the thickness of the distal clavicle had poorer postoperative clinical outcomes after acromioclavicular joint dislocation treated with the endobutton device [6].
• Simple excision of the outer end of the clavicle yielded satisfactory results in patients with acromioclavicular joint dislocation and subluxation, with no residual upward displacement disturbing the patients [7].
• Subacromial osteolysis following hook plate fixation for acromioclavicular dislocation has a relatively high and variable incidence, with the primary factor influencing the reported incidence being the radiological assessment method [12].
• Radiological assessment showed a statistically significant immediate superior clavicular displacement after hardware removal following acromioclavicular joint stabilization using a suspensory fixation system, with an increased incidence in the first year following stabilization [18].
• Weighted stress radiographs significantly increased the measured elevation of the clavicle and the coracoclavicular distance compared to non-weighted views in acute acromioclavicular joint dislocations [47].
• A high index of suspicion is needed to diagnose bone osteolysis following acromioclavicular joint reconstruction using synthetic ligament early before irretrievable bone loss occurs [54].
• Segmental fractures of the clavicle are easily missed [21].

Treatment¶

• The combination of distal clavicle resection and antibiotics halted osteolysis in a case of Propionibacterium acnes–mediated distal clavicular osteolysis, with the patient remaining symptom-free at 10 months post-surgery [1].
• Patients undergoing arthroscopic distal clavicle excision via the direct approach can expect a faster return to activities compared with open procedures while obtaining similar long-term outcomes [2].
• Clavicular resection reliably produced significant improvement in patients with persistent pain or posttraumatic arthritis following late loss of reduction after acromioclavicular joint dislocation [5].
• Simple excision of the outer end of the clavicle yielded satisfactory results in patients with acromioclavicular joint dislocation, with no residual upward displacement disturbing the patients [7].
• Acromioclavicular joint reconstruction with coracoacromial ligament transfer using the docking technique achieved excellent clinical results and decreased the risk of recurrent distal clavicle instability [23].
• Satisfactory outcomes for fracture clavicle with acromioclavicular dislocation depend upon restoring the stability of the clavicle as well as the acromioclavicular joint [24].
• Ipsilateral os acromiale may be a relative contraindication to the clavicle hook plate [46].
• Open and arthroscopic distal clavicle excision are both effective surgeries to treat recalcitrant acromioclavicular joint pain, providing similarly good to excellent results regarding patient satisfaction and shoulder function at intermediate-term follow-up [49].
• Less residual pain was found using the arthroscopic technique compared with the open procedure for distal clavicle excision [49].
• High-level studies on treatment modalities for acromioclavicular joint pain are limited [52].

Complications¶

• Distal clavicle osteolysis mediated by Propionibacterium acnes can be halted by the combination of distal clavicle resection and antibiotics, with patients remaining symptom-free at 10 months post-surgery [1].
• Gorham-Stout disease should be considered in patients presenting with massive osteolysis after shoulder surgery [3].
• Incomplete excision and regrowth of the distal clavicle are the most common causes of revision following distal clavicle resection [10].
• Subacromial osteolysis following hook plate fixation for acromioclavicular dislocation has a relatively high and variable incidence, with the primary factor influencing reported incidence being the radiological assessment method [12].
• Clavicular tunnel widening was observed in 70% of patients at final follow-up after coracoclavicular stabilization surgery, with a higher prevalence in chronic than in acute cases [16].
• Late loss of reduction was common in patients with acromioclavicular joint dislocation, while clavicular resection reliably produced significant improvement in patients with persistent pain or posttraumatic arthritis [5].
• Simple excision of the outer end of the clavicle has yielded satisfactory results in patients with acromioclavicular joint dislocation, with no residual upward displacement disturbing the patients [7].
• The minimally invasive TightRope system showed reduced risk of subacromial distal clavicle osteolysis compared to the hook plate in the treatment of acute type III acromioclavicular dislocation [51].
• Asymptomatic ossification of the coracoclavicular ligaments can occur 15 years postoperatively following anatomic reduction of acute acromioclavicular joint separations [19].

Recovery¶

• Late loss of reduction was common in patients with acromioclavicular joint dislocation, but clavicular resection reliably produced significant improvement in patients with persistent pain or posttraumatic arthritis [5].
• Incomplete excision and regrowth of the distal clavicle are the most common causes of revision after acromioclavicular joint resection [10].
• A majority of patients with untreated acute grade III acromioclavicular separation will do well without any formal treatment, though a small percentage may require delayed surgical intervention [56].
• Patients with displacement greater than 100% of the thickness of the distal clavicle had poorer postoperative clinical outcomes following acromioclavicular joint dislocation treated with the endobutton device [6].
• Fifteen years postoperatively, good clinical results persisted and anatomic reduction was overall maintained after arthroscopically assisted 2-bundle anatomic reduction of acute acromioclavicular joint separations, often with asymptomatic ossification of the coracoclavicular ligaments [19].
• Radiological assessment showed a statistically significant immediate superior clavicular displacement after hardware removal following acromioclavicular joint stabilization using a suspensory fixation system, with an increased incidence in the first year following stabilization, though this may not negatively influence the results of acromioclavicular joint stabilization in a clinically relevant way [18].
• The short-term follow-up of 15 patients treated with minimally invasive coracoclavicular ligament augmentation using a flip button/polydioxanone repair revealed excellent radiologic and clinical results, with no subluxations or dislocations of the acromioclavicular joint noted [25].
• The combination of distal clavicle resection and antibiotics halted Propionibacterium acnes–mediated distal clavicular osteolysis, and the patient remained symptom free at 10 months after surgery [1].

Key Evidence¶

• [Case_report] The combination of distal clavicle resection and antibiotics halted the osteolysis, and the patient has remained symptom free at 10 months after surgery. [1] (10.1016/j.jse.2015.03.004)
• [L3] Among patients undergoing distal clavicle excision for acromioclavicular joint pathology, those having an arthroscopic procedure, specifically through the direct approach, can expect a faster return to activities while obtaining similar long-term outcomes compared with the open procedure. [2] (10.1016/j.arthro.2009.12.007)
• [L4] The case highlights the need to consider this diagnosis in patients presenting with massive osteolysis after shoulder surgery. [3] (10.1016/j.jse.2012.05.024)
• [L5] In appropriately selected patients, open or arthroscopic distal clavicle resection is necessary to relieve symptoms. [4] (10.5435/00124635-199905000-00004)
• [L3] Late loss of reduction was common, and clavicular resection reliably produced significant improvement in patients with persistent pain or posttraumatic arthritis. [5] (10.2106/00004623-198769070-00013)
• [L3] Patients with displacement greater than 100% of the thickness of the distal clavicle had poorer postoperative clinical outcomes. [6] (10.1186/s12891-025-09190-x)
• [L3] Arthroscopic distal clavicle resection has provided more 'good or excellent' results than has the open procedure, but is comprised of low-level evidence. [8] (10.1097/blo.0b013e31802f5450)
• [L5] A well-performed distal clavicle excision will likely perform better than a poorly performed one, regardless of whether an open or arthroscopic approach is chosen. [9] (10.1016/j.arthro.2018.03.004)
• [L4] Incomplete excision and regrowth of the distal clavicle are the most common causes of revision. [10] (10.1016/j.arthro.2009.06.010)
• [L4] Horizontal instability of the clavicle is evident with distal clavicle resection of greater than 10 mm. [11] (10.1016/j.xrrt.2021.05.003)
• [L1] Subacromial osteolysis has a relatively high and variable incidence, and the primary factor influencing the reported incidence is the radiological assessment method. [12] (10.1016/j.jse.2024.03.018)
• [L4] Excision of the outer end of the clavicle is preferred for old dislocations, while open reduction and internal fixation are not recommended due to complications and poor functional results. [13] (10.2106/00004623-196345080-00024)
• [L4] Methods to diagnose both superior and posterior translation of the clavicle need further debate. [15] (10.1016/j.jseint.2019.11.006)
• [L1] Clavicular tunnel widening was observed in 70% of patients at final follow-up, with a higher prevalence in chronic than in acute cases. [16] (10.1016/j.jse.2023.09.037)
• [L1] Arthroscopic and open distal clavicle excisions both provide significant pain reduction at 1 year with no significant difference in outcome measures between groups, except for VAS pain score improvement. [17] (10.1016/j.jse.2006.10.006)
• [L4] Although radiological assessment showed a statistically significant immediate superior clavicular displacement after this rarely required procedure, with an increased incidence in the first year following stabilization, this may not negatively influence the results of ACJ stabilization in a clinically relevant way. [18] (10.1007/s00167-022-06978-5)
• [L3] Fifteen years postoperatively, good clinical results persisted and anatomic reduction was overall maintained, often with asymptomatic ossification of the coracoclavicular ligaments. [19] (10.1177/03635465251355958)
• [L2] Routine distal clavicle excision is not absolutely necessary, even in patients with symptomatic ACJ osteoarthritis. [20] (10.1007/s00167-020-06098-y)
• [Case_report] The case highlights that segmental fractures of the clavicle are easily missed. [21] (10.1177/1758573214564496)
• [Case_report] Total claviculectomy is a possible treatment option for chronic clavicular dislocation with excellent outcomes and high patient satisfaction. [22] (10.1016/j.xrrt.2021.03.007)
• [L4] Excellent clinical results were achieved, decreasing the risk of recurrent distal clavicle instability. [23] (10.1186/1471-2474-10-6)
• [L4] Satisfactory outcome depends upon restoring the stability of the clavicle as well as the acromioclavicular joint. [24] (10.1111/j.1758-5740.2010.00102.x)
• [L4] The short-term follow-up of 15 recently operated patients reveals excellent radiologic and clinical results, with no subluxations or dislocations of the acromioclavicular joint noted. [25] (10.1016/j.arthro.2006.12.015)
• [L4] Distal clavicle fracture is a potential complication of misidentification of the AC joint and subsequent aggressive burring during shoulder arthroscopy. [26] (10.1016/j.arthro.2009.02.008)
• [L4] Total claviculectomy yielded good results for patients with chronic osteitis and malignancy but unsatisfying results for those with chronic posttraumatic pain, despite full range of motion being regained in all cases. [27] (10.1016/j.jse.2006.07.007)
• [L5] Despite technology innovations, a precise, easy to use and low-cost non-invasive method able to draw and analyze the kinematics of the shoulder complex has not been developed yet. [29] (10.1177/17585732221090226)
• [L5] This study provided normative kinematic values of scapulothoracic movements in the shoulder girdle. [30] (10.1016/j.jseint.2022.09.014)
• [L5] Although each technique was able to restore different elements of the joint kinematics, none of the strategies completely restored the shoulder girdle to its preinjured state. [31] (10.1177/03635465221095231)
• [L5] The trapezoid and conoid ligaments have unique functions in normal shoulder kinematics because of their anatomic attachments. [32] (10.1016/j.arthro.2009.12.031)
• [L5] The kinematic changes could be a potential source of pain and dysfunction in the shoulder with AC joint dislocation. [33] (10.1177/0363546512458571)
• [L5] Scapular and clavicular kinematics were affected in AC separation models. [34] (10.1016/j.jse.2013.01.004)
• [L5] A comprehensive clinical approach emphasizing the evaluation of the extent of the anatomic injury and understanding its mechanical consequences regarding shoulder and arm function is a key in the development of guidelines for developing operative or non-operative treatment protocols and for establishing outcomes of the treatment protocols. [35] (10.1177/17585732221122335)
• [L4] The inconsistency of AC joint testing parameters and the lack of thorough translation studies indicate a necessity for increased attention in the overall assessment of shoulder stability to close the gap in the foundational biomechanical research. [36] (10.1016/j.xrrt.2024.06.009)
• [L5] Anatomically, it provides sufficient tissue length, excursion, and width, and biomechanically, it is as strong as the coracoacromial ligament. [37] (10.1016/j.jse.2006.09.007)
• [L5] No significant biomechanical differences in displacement or stiffness were seen between the anatomical landmark technique and the coracoid-based landmarks technique. [38] (10.1177/23259671221132541)
• [L5] New surgical techniques continue to evolve as more biomechanical data emerge and kinematic understanding improves. [39] (10.5435/jaaos-d-16-00776)
• [L5] By exploring emerging concepts and strategies regarding horizontal and rotational instability and scapular biomechanics, the article aims to lay the foundation for future studies aimed at improving treatment outcomes and patient management. [40] (10.1016/j.jseint.2023.11.018)
• [L4] Preliminary findings revealed no detectable differences between surgically reconstructed and uninjured sides in ACJ biomechanics, range of motion, and isometric strength, while nonoperatively treated shoulders showed increased internal rotation, upward rotation, and posterior tilting. [41] (10.1177/23259671241274707)
• [L4] Type I and II acromioclavicular joint disruptions impair long-term shoulder function in about half of patients 10 years after injury. [43] (10.1177/0363546508319047)
• [L5] At 150 to 200 N of loading, CAL excision and acromioplasty increase the rotator cuff force required to maintain normal glenohumeral biomechanics by 25% to 30%. [44] (10.1016/j.jse.2015.10.022)
• [L3] Centre of pressure measurement detected sensorimotor functional deficits following surgical treatment of the shoulder joint in patients with confirmed successful clinical and functional outcomes. [45] (10.1007/s00167-021-06751-0)
• [L4] Ipsilateral os acromiale may be a relative contraindication to the clavicle hook plate. [46] (10.1186/s12891-021-04841-1)
• [L4] Weighted stress radiographs significantly increased the measured elevation of the clavicle and the coracoclavicular distance compared to non-weighted views. [47] (10.1016/j.jseint.2023.06.011)
• [L4] Severe chronic symptomatic AC joint separations (Rockwood types III through V) can be repaired entirely by arthroscopy safely and effectively by transferring the coracoacromial ligament with a bone block in the distal clavicle. [48] (10.1016/j.arthro.2009.08.008)
• [L3] Open and arthroscopic distal clavicle excision are both effective surgeries to treat recalcitrant acromioclavicular joint pain, providing similarly good to excellent results regarding patient satisfaction and shoulder function at intermediate-term follow-up, though less residual pain was found using the arthroscopic technique. [49] (10.1177/0363546511419633)
• [L5] The ISAKOS Upper Extremity Committee suggests adding grade IIIA and grade IIIB injuries to a modified Rockwood classification to distinguish between stable type III injuries and unstable grade III injuries with therapy-resistant scapular dysfunction and overriding clavicle. [50] (10.1016/j.arthro.2013.11.005)
• [L3] However, the minimally invasive TightRope system showed further benefits such as reduced reoperation for implant removal and reduced risk of subacromial distal clavicle osteolysis. [51] (10.1155/2022/8706638)
• [L2] High-level studies on treatment modalities for acromio-clavicular joint pain are limited. [52] (10.1177/1758573217700839)
• [L4] A high index of suspicion is needed to diagnose such complications early before irretrievable bone loss to osteolysis. [54] (10.1111/sae.12035)
• [L2] A majority of patients with untreated acute grade III acromioclavicular separation will do well without any formal treatment, though a small percentage may require delayed surgical intervention. [56] (10.1177/03635465010290060401)

References¶

[1] Propionibacterium acnes–mediated distal clavicular osteolysis: a case report. Journal of Shoulder and Elbow Surgery. 2015. DOI: 10.1016/j.jse.2015.03.004

[2] Open Versus Arthroscopic Distal Clavicle Resection. Arthroscopy. 2010. DOI: 10.1016/j.arthro.2009.12.007

[3] Gorham-Stout disease as a complication of posterior shoulder capsulorrhaphy. Journal of Shoulder and Elbow Surgery. 2012. DOI: 10.1016/j.jse.2012.05.024

[4] Painful Conditions of the Acromioclavicular Joint. Journal of the American Academy of Orthopaedic Surgeons. 1999. DOI: 10.5435/00124635-199905000-00004

[5] Dislocation of the acromioclavicular joint. An end-result study.. The Journal of Bone & Joint Surgery. 1987. DOI: 10.2106/00004623-198769070-00013

[6] Predicting reduction loss risk after acromioclavicular joint dislocation treated with the endobutton device. BMC Musculoskeletal Disorders. 2025. DOI: 10.1186/s12891-025-09190-x

[7] Complete Dislocation and Subluxation of the Acromioclavicular Joint: End Result in Seventy-three Cases.. The Journal of Bone and Joint Surgery. American Volume. 1961.

[8] Surgical Treatment of Symptomatic Acromioclavicular Joint Problems. Clinical Orthopaedics and Related Research. 2007. DOI: 10.1097/blo.0b013e31802f5450

[9] Editorial Commentary:

                The “Mumford” & Sons: For Distal Clavicle Excisions, What Are Our Young Surgeons Doing, and How Well Are They Doing It?. *Arthroscopy*. 2018. DOI: 10.1016/j.arthro.2018.03.004

[10] Open Versus Arthroscopic Acromioclavicular Joint Resection: A Retrospective Comparison Study. Arthroscopy. 2009. DOI: 10.1016/j.arthro.2009.06.010

[11] The reverse coracoacromial ligament transfer for “horizontal” acromioclavicular joint instability. JSES Reviews, Reports, and Techniques. 2021. DOI: 10.1016/j.xrrt.2021.05.003

[12] Subacromial osteolysis following hook plate fixation for acromioclavicular dislocation: a systematic review and meta-analysis. Journal of Shoulder and Elbow Surgery. 2024. DOI: 10.1016/j.jse.2024.03.018

[13] COMPLETE DISLOCATION OF THE ACROMIOCLAVICULAR JOINT. The Journal of Bone & Joint Surgery. 1963. DOI: 10.2106/00004623-196345080-00024

[14] Acromioclavicular-Joint Injury: AN END-RESULT STUDY.. The Journal of Bone and Joint Surgery. American Volume. 1966.

[15] Methods used to assess the severity of acromioclavicular joint separations in Japan: a survey. JSES International. 2020. DOI: 10.1016/j.jseint.2019.11.006

[16] Clavicular tunnel widening after coracoclavicular stabilization surgery: a systematic review and meta-analysis. Journal of Shoulder and Elbow Surgery. 2024. DOI: 10.1016/j.jse.2023.09.037

[17] Arthroscopic versus open distal clavicle excision: Comparative results at six months and one year from a randomized, prospective clinical trial. Journal of Shoulder and Elbow Surgery. 2007. DOI: 10.1016/j.jse.2006.10.006

[18] Low rate of substantial loss of reduction immediately after hardware removal following acromioclavicular joint stabilization using a suspensory fixation system. Knee Surgery, Sports Traumatology, Arthroscopy. 2022. DOI: 10.1007/s00167-022-06978-5

[19] Long-term Follow-up After Arthroscopically Assisted 2-Bundle Anatomic Reduction of Acute Acromioclavicular Joint Separations. The American Journal of Sports Medicine. 2025. DOI: 10.1177/03635465251355958

[20] Acromioclavicular joint arthritis is not an indication for routine distal clavicle excision in arthroscopic rotator cuff repair. Knee Surgery, Sports Traumatology, Arthroscopy. 2020. DOI: 10.1007/s00167-020-06098-y

[21] Segmental clavicle fracture and acromio-clavicular joint disruption: an unusual case report. Shoulder & Elbow. 2014. DOI: 10.1177/1758573214564496

[22] A four-year-old neglected traumatic bipolar clavicular dislocation: a case report. JSES Reviews, Reports, and Techniques. 2021. DOI: 10.1016/j.xrrt.2021.03.007

[23] Acromioclavicular joint reconstruction with coracoacromial ligament transfer using the docking technique. BMC Musculoskeletal Disorders. 2009. DOI: 10.1186/1471-2474-10-6

[24] Fracture Clavicle with Acromioclavicular Dislocation: A Complex Injury. Shoulder & Elbow. 2011. DOI: 10.1111/j.1758-5740.2010.00102.x

[25] Minimally Invasive Coracoclavicular Ligament Augmentation With a Flip Button/Polydioxanone Repair for Treatment of Total Acromioclavicular Joint Dislocation. Arthroscopy. 2007. DOI: 10.1016/j.arthro.2006.12.015

[26] Distal Clavicle Fracture as a Complication of Arthroscopic Distal Clavicle Resection. Arthroscopy. 2009. DOI: 10.1016/j.arthro.2009.02.008

[27] Outcome of total claviculectomy in six cases. Journal of Shoulder and Elbow Surgery. 2007. DOI: 10.1016/j.jse.2006.07.007

[29] Evaluation of the range of motion of scapulothoracic, acromioclavicular and sternoclavicular joints: State of the art. Shoulder & Elbow. 2022. DOI: 10.1177/17585732221090226

[30] Kinematic analysis of scapulothoracic movements in the shoulder girdle: a whole cadaver study. JSES International. 2023. DOI: 10.1016/j.jseint.2022.09.014

[31] Differences between Coracoclavicular, Acromioclavicular, or Combined Reconstruction Techniques on the Kinematics of the Shoulder Girdle. The American Journal of Sports Medicine. 2022. DOI: 10.1177/03635465221095231

[32] A Biomechanical Analysis of the Native Coracoclavicular Ligaments and Their Influence on a New Reconstruction Using a Coracoid Tunnel and Free Tendon Graft. Arthroscopy. 2010. DOI: 10.1016/j.arthro.2009.12.031

[33] The Function of the Acromioclavicular and Coracoclavicular Ligaments in Shoulder Motion. The American Journal of Sports Medicine. 2012. DOI: 10.1177/0363546512458571

[34] Acromioclavicular joint ligamentous system contributing to clavicular strut function: a cadaveric study. Journal of Shoulder and Elbow Surgery. 2013. DOI: 10.1016/j.jse.2013.01.004

[35] Acromioclavicular joint injuries revisited: Pathoanatomy, pathomechanics, and clinical presentation. Shoulder & Elbow. 2022. DOI: 10.1177/17585732221122335

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