Return to Sport as an Outcome Measure for Shoulder Instability: Surprising Findings in Nonoperative Management in a High School Athlete Population

2019 ◽  
Vol 47 (5) ◽  
pp. 1062-1067 ◽  
Author(s):  
Ellen Shanley ◽  
Charles Thigpen ◽  
John Brooks ◽  
Richard J. Hawkins ◽  
Amit Momaya ◽  
...  
Keyword(s):  
High School ◽  
Shoulder Instability ◽  
Nonoperative Management ◽  
Return To Sport ◽  
Return To Play ◽  
Anterior Shoulder Instability ◽  
Time Loss ◽  
Additional Time ◽  
High School Athlete ◽  
Treatment Type

Background: Young age and contact sports have been postulated as risk factors for anterior shoulder instability. Management after shoulder instability is controversial, with studies suggesting that nonoperative management increases the risk of recurrence. Several studies examined return to play after an in-season instability episode, and few followed these patients to determine if they were able to successfully compete in a subsequent season. No study has evaluated this question in a high school athlete population. Purpose: To compare the likelihood of return to scholastic sport and complete the next full season without an additional time-loss injury among athletes with anterior shoulder instability in terms of treatment, instability type, and sport classification. Study Design: Cohort study; Level of evidence, 2 Methods: Athletes were included in this study as identified by a scholastic athletic trainer as experiencing a traumatic time-loss anterior shoulder instability injury related to school-sponsored participation. The cohort was predominantly male (n = 108, 84%) and consisted mostly of contact athletes (n = 101, 78%). All athletes had dislocation or subluxation diagnosed by a board-certified physician who determined the athlete’s course of care (nonoperative vs operative). Successful treatment was defined as completion of care and return to the athlete’s index sport, with full participation for the following season. Chi-square and relative risk analyses were completed to compare success of treatment (nonoperative vs operative care) and instability type. Separate logistic regressions were used to compare the effect of sex and sport classification on the athletes’ ability to return to sport. Statistical significance was set a priori as α = .05. Results: Scholastic athletes (N = 129) received nonoperative (n = 97) or operative (n = 32) care. Nonoperatively treated (85%) and operatively treated (72%) athletes successfully returned to the same sport without injury for at least 1 full season ( P = .11). Players sustaining a dislocation were significantly more likely to fail to return when compared with those sustaining a subluxation (26% vs 89%, P = .013). Sex ( P = .85) and sport classification ( P = .74) did not influence the athlete’s ability to return to sport, regardless of treatment type. Conclusion: A high percentage of athletes with shoulder instability achieved successful return to sport without missing any additional time for shoulder injury. Those with subluxations were at almost 3 times the odds of a successful return compared with those sustaining a dislocation.

Successful Return to Sport After Arthroscopic Shoulder Stabilization Versus Nonoperative Management in Contact Athletes With Anterior Shoulder Instability: A Prospective Multicenter Study

2017 ◽  
Vol 45 (11) ◽  
pp. 2540-2546 ◽  
Author(s):  
Jonathan F. Dickens ◽  
John-Paul Rue ◽  
Kenneth L. Cameron ◽  
John M. Tokish ◽  
Karen Y. Peck ◽  
...  
Keyword(s):  
Shoulder Instability ◽  
Nonoperative Management ◽  
Return To Sport ◽  
Return To Play ◽  
Surgical Reconstruction ◽  
Anterior Shoulder Instability ◽  
Arthroscopic Stabilization ◽  
Glenohumeral Instability ◽  
Recurrent Instability ◽  
Competitive Season

Background: The debate continues regarding the optimal treatment of intercollegiate contact athletes with in-season anterior shoulder instability. Purpose: To examine return to sport and recurrent instability in the season after the index in-season anterior instability event. Study Design: Cohort study; Level of evidence, 2. Methods: Forty-five contact intercollegiate athletes treated nonoperatively or with arthroscopic stabilization were prospectively followed in a multicenter observational study to evaluate return to play (RTP) and recurrent instability in the season after an initial in-season anterior glenohumeral instability event. Baseline data collection included sport played, previous instability events, direction of instability, type of instability (subluxation or dislocation), and treatment method (nonoperative management or arthroscopic stabilization). All nonoperatively treated athletes underwent a standardized accelerated rehabilitation program without shoulder immobilization. Surgical stabilization was performed arthroscopically in all cases, and successful RTP was evaluated during the next competitive season after complete rehabilitation. Results: Thirty-nine of 45 intercollegiate contact athletes had remaining National Collegiate Athletic Association eligibility and were followed through the subsequent competitive season after the index instability event. Of the 10 athletes electing nonoperative treatment, 4 (40%) successfully returned to play without recurrence during the subsequent season. Of the 29 athletes treated surgically, 26 (90%) were able to successfully return to play without recurrence the following season (recurrence: n = 1; inadequate function: n = 2). Athletes who underwent surgical reconstruction before the next season were 5.8 times (95% CI, 1.77-18.97; P = .004) more likely to complete the subsequent season without recurrent instability. Of the 29 athletes electing surgical stabilization, there was no difference (risk ratio, 0.95; 95% CI, 0.10-9.24; P > .99) in RTP between the 9 stabilized after a single instability event (90% RTP rate) and the 20 stabilized after multiple in-season recurrent instability events (89% RTP rate). Conclusion: Collegiate contact and collision athletes with in-season anterior shoulder instability are significantly more likely to successfully return to sport without subsequent instability events the next season if they undergo surgical repair in the off-season.

scholarly journals Return to Sport as Outcome Measure for Shoulder Instability: Surprising Findings in Non-Operative Management in a High School Athlete Population

2017 ◽  
Vol 5 (7_suppl6) ◽  
pp. 2325967117S0028
Author(s):  
Ellen Shanley ◽  
John M. Tokish ◽  
Charles A. Thigpen ◽  
Lauren Ruffrage ◽  
Douglas J. Wyland ◽  
...  
Keyword(s):  
High School ◽  
Shoulder Instability ◽  
Outcome Measure ◽  
Return To Sport ◽  
Operative Management ◽  
High School Athlete ◽  
Non Operative Management

Clinical Outcomes of Patients With Anterior Shoulder Instability and Glenolabral Articular Disruption Lesions: A Retrospective Comparative Study

2020 ◽  
Vol 48 (14) ◽  
pp. 3472-3477
Author(s):  
Martin S. Davey ◽  
Eoghan T. Hurley ◽  
Christopher A. Colasanti ◽  
John P. Scanlon ◽  
Mohamed Gaafar ◽  
...  
Keyword(s):  
Clinical Outcomes ◽  
Shoulder Instability ◽  
Return To Sport ◽  
Return To Play ◽  
Anterior Shoulder Instability ◽  
Control Group ◽  
Control Groups ◽  
Level Of Evidence ◽  
Significant Difference ◽  
And Control

Background: Anterior shoulder instability is a common clinical condition that often requires surgical stabilization. Glenoid labral tears are often associated with instability, with glenolabral articular disruption (GLAD) lesions occasionally being identified arthroscopically during repair, particularly in collision athletes. Purpose: To evaluate the clinical outcomes and recurrence rates in patients who had GLAD lesions and underwent arthroscopic Bankart repair (ABR) and compare them with a control group without GLAD lesions. Study Design: Cohort study; Level of evidence, 3. Methods: A retrospective review of patients who underwent ABR with GLAD lesions, by a single surgeon between July 2012 and March 2017, was performed. Additionally, these were pair matched in a 2:1 ratio for age, sex, sport, and level of play with a control group who underwent ABR without GLAD lesions. Return to sport, the level of return, and the timing of return were assessed. The visual analog scale (VAS) for pain score, Rowe score, Shoulder Instability–Return to Sport after Injury (SIRSI) score, and Subjective Shoulder Value (SSV) were evaluated. Results: The study included a total of 66 patients (22 and 44 patients for the GLAD and control groups, respectively), with a mean age of 25.8 years and a mean follow-up of 66 months. Overall, there was no significant difference in any of the clinical outcome scores (VAS, Rowe, SIRSI, and SSV) utilized for the GLAD and control groups ( P > .05 for all). Similarly, there was no significant difference in the total rate of return to play (90.9% vs 88.6%; P > .99) or return at the same/higher level (68.2% vs 72.7%; P = .78). There was no significant difference in timing of return to play (6.3 ± 6.6 months vs 6.4 ± 2.5 months; P = .98). There were 3 cases (13.6%) requiring further surgery (1 revision stabilization, 1 arthroscopic release, and 1 rotator cuff repair) in the GLAD group and 2 cases (4.5%) requiring further surgery (both revision stabilization) in the control group; the difference was not statistically significant ( P = .32). Conclusion: After arthroscopic repair, patients with GLAD lesions had similar midterm outcomes when compared with a control group without GLAD lesions.

Return to Professional Australian Rules Football After Surgery for Traumatic Anterior Shoulder Instability

2021 ◽  
pp. 036354652110290
Author(s):  
Michael Perret ◽  
Sarah Warby ◽  
Godefroy Brais ◽  
Stephanie Hinse ◽  
Sophie Hoy ◽  
...  
Keyword(s):  
Shoulder Instability ◽  
Return To Sport ◽  
Field Performance ◽  
Return To Play ◽  
Anterior Shoulder Instability ◽  
Level Of Evidence ◽  
Australian Football League ◽  
Early Return ◽  
Significant Difference ◽  
Australian Football

Background: The treatment of traumatic anterior shoulder instability in professional Australian Football League (AFL) players is challenging, with an emphasis on early return to play and avoidance of instability recurrence. Purpose: To investigate return-to-sport (RTS) outcomes and complications after 2 different procedures for traumatic anterior shoulder instability in professional AFL players. Study Design: Cohort study; Level of evidence, 3. Methods: We retrospectively reviewed our surgical database for professional AFL players who underwent capsulolabral stabilization or open Latarjet procedure by a single surgeon between 2006 and 2017. Outcomes included RTS, on-field performance, and complications. Between-group analyses for RTS and complications were estimated using Kaplan-Meier survival analyses. Within-group analyses for on-field performance data were performed using paired t tests with significance set at .05. Results: A total of 58 capsulolabral stabilization procedures in 54 players and 32 Latarjet procedures in 29 players were included in the analysis; 93.1% of capsulolabral patients and 96.9% of Latarjet patients returned to professional AFL. The median RTS time was 6.8 months for the capsulolabral group and 7.3 months for the Latarjet group. There was no significant difference in RTS rates between the 2 groups ( P = .270). Of those undergoing surgery early in the season, 75% of the capsulolabral and 71% of Latarjet group were able to RTS within the same season, at a mean time of 16.9 weeks and 18.8 weeks, respectively. There was a significant difference in instability recurrence, with 19% for the capsulolabral group and no recurrence in the Latarjet group ( P = .017). There was no significant reduction in player on-field performance in either group ( P < .05). Conclusion: In this study, the median RTS in AFL players was approximately 7 months after capsulolabral and Latarjet surgery with no compromise to on-field performance. Instability-related complications occurred only in the capsulolabral group, and the incidence increased with time.

Functional Rehabilitation and Return to Play After Arthroscopic Surgical Stabilization for Anterior Shoulder Instability

2021 ◽  
pp. 194173812110628
Author(s):  
Timothy D. Kelley ◽  
Stephanie Clegg ◽  
Paul Rodenhouse ◽  
Jon Hinz ◽  
Brian D. Busconi
Keyword(s):  
Shoulder Instability ◽  
Return To Sport ◽  
Rehabilitation Program ◽  
Return To Play ◽  
Bankart Repair ◽  
Anterior Shoulder Instability ◽  
Functional Rehabilitation ◽  
Arthroscopic Bankart Repair ◽  
Redislocation Rate

Background: There exists limited objective functional return-to-play criteria after surgical stabilization for anterior shoulder instability in the competitive athlete. Hypothesis: The proposed functional rehabilitation program and psychological evaluation after arthroscopic Bankart repair will help athletes return to sport with a decreased redislocation rate on return. Study Design: Case series. Level of Evidence: Level 4. Methods: Participants were contact or overhead athletes at the high school or collegiate level. Each underwent arthroscopic Bankart repair after a single dislocation event, with less than 10% glenoid bone loss. Western Ontario Shoulder Instability Index (WOSI) scores, Single Assessment Numeric Evaluation (SANE) scores, and American Shoulder and Elbow Surgeons (ASES) scores were evaluated pre- and postoperatively. Athletes were only allowed to return to competition after completing the proposed functional and psychological rehabilitation protocol. Results: A total of 62 participants were enrolled (52 male, 10 female; average age, 18.7 years (range 16-24 years); mean Instability Severity Index Score, 5.63 ± 0.55). All returned to sport for 1 full season and completed a minimum of 2 years of follow-up. The average time to pass functional testing was 6.2 ± 0.7 months, psychological testing was 5.2 ± 0.5 months, and return to sport was 6.5 ± 0.7 months. SANE scores improved from 44.3 to 90.0, ASES from 45.5 to 89.3, and WOSI from 1578.0 to 178.9 (all P < 0.001). Redislocation rate was 6.5% (4 of 62). Conclusion: The proposed functional rehabilitation and psychological assessment protocol is safe and effective in returning athletes to sport after arthroscopic surgical intervention for anterior shoulder instability. This demonstrated a low redislocation rate after 2-year follow-up. Clinical Relevance: Most return-to-play protocols after arthroscopic Bankart repair are centered on recovery time alone, with limited focus on functional rehabilitation, psychological assessment, and return-to-play testing parameters. To our knowledge, this is the first study to propose a dedicated rehabilitation program incorporating functional testing, psychological readiness, and return-to-play criteria for competitive athletes recovering from arthroscopic shoulder stabilization.

scholarly journals The Non-Operative Instability Severity Score: A Validated Scoring System to Predict Who Needs Operative Management in the Scholastic Athlete

2018 ◽  
Vol 6 (3_suppl) ◽  
pp. 2325967118S0000
Author(s):  
John M. Tokish ◽  
Charles A. Thigpen ◽  
Michael J. Kissenberth ◽  
Stefan John Tolan ◽  
Keith T. Lonergan ◽  
...  
Keyword(s):  
Risk Factors ◽  
Decision Making ◽  
Shoulder Instability ◽  
Scoring System ◽  
Nonoperative Management ◽  
Return To Sport ◽  
Severity Index ◽  
Anterior Shoulder Instability ◽  
Adolescent Athlete ◽  
Risk Of Failure

Objectives: The management of the adolescent athlete who presents for initial treatment after shoulder instability remains controversial. Risk factors such as age, gender, athletic status, and patient goals have all been demonstrated to result in a higher risk of recurrence with nonoperative management, but little work has been done to determine a treatment algorithm that would combine these factors into a decision making algorithm. The purpose of this study, therefore, was to evaluate patients managed nonoperatively for shoulder instability, and to identify factors that led to failure, defined as an inability to return to sport with no subsequent missed time due to shoulder issues. We sought to integrate these factors into a scoring system that would predict the success or failure of nonoperative management in the treatment of shoulder instability in the adolescent athlete. Methods: A retrospective study was conducted of 57 patients who were first time presenters for anterior shoulder instability to a single orthopaedic practice. Inclusion criteria were that patients were managed nonoperatively, that they were involved in high school sports with at least one season of eligibility remaining, and that complete information was available on their ultimate return to their previous sport. Success was defined as those patients who returned to their sport at the same level, and who played at least one subsequent season without any time being missed due to the shoulder that had been unstable. Patient specific risk factors were individually evaluated, and those that were predictive of a higher risk of failure were incorporated into a 10-point Nonoperative Injury Severity Index (NISIS). This score was then retrospectively applied with regression analysis as well as a chi-square analysis to determine the overall score that predicted failure of nonoperative management. Results: Six factors were identified as risk factors and included in the NISIS. Age greater than 15, the presence of bone loss, type of instability (subluxation or dislocation), type of sport (collision vs. non-collision), female gender, and arm dominance, were assigned points based on individual risk. Overall, 79% of patients treated nonoperatively were able to achieve full return to sport without subsequent surgical intervention or missing any time as a result of their shoulder. Patients who had a preoperative NISIS score of >7 returned at over 90% to sport, compared to a success rate of 50% for those who scored <8, revealing an odds ratio of 9.3 times higher risk of failure for those in the high risk group (p=0.001). Conclusion: The non-operative instability severity index is simple and effective preoperative method to determine who is likely to be successful at returning to scholastic sports after presenting for anterior shoulder instability. Further study with a larger prospective cohort should be accomplished to independently validate this score, but this information may be useful for the treating physician to help guide decision making when presented with the unstable shoulder. [Figure: see text]

scholarly journals Long Term Outcomes of Anterior Shoulder Instability in Throwers and Overhead Athletes at a Mean Follow-up of 15 years (240)

2021 ◽  
Vol 9 (10_suppl5) ◽  
pp. 2325967121S0034
Author(s):  
Matthew Shirley ◽  
Richard Nauert ◽  
Ryan Wilbur ◽  
Matthew LaPrade ◽  
Christopher Bernard ◽  
...  
Keyword(s):  
Shoulder Instability ◽  
Treatment Strategies ◽  
Return To Sport ◽  
Population Based ◽  
Return To Play ◽  
Anterior Shoulder Instability ◽  
Geographic Population ◽  
Overhead Athletes ◽  
Patient Reported

Objectives: There is a paucity of literature regarding outcomes of anterior shoulder instability (ASI) in throwers and overhead athletes (OHA). The purpose of this study was to report the pathology, treatment strategies, and outcomes of ASI in throwers and overhead athletes utilizing an established US geographic population-based cohort. Methods: An established geographic database of more than 500,000 patients was used to identify athletes <40 years of age with ASI between 1994 and 2016. Medical records were reviewed to obtain demographics, type of sport, surgical details, and clinical outcomes. Patients were contacted after final clinical follow-up for patient reported outcomes (PRO). The Western Ontario Shoulder Instability (WOSI) score, return to sport at previous level of performance (RPP), rate of return to play (RTP) and time to RTP were recorded. Statistical analysis was performed comparing throwers to non-throwers and OHA to non-overhead athletes (NOHA). Results: The study population consisted of 171 patients, 114 NOHA and 57 OHA. Of the OHA, 40 were throwers. The mean follow-up was 14.7 ± 5.6 years for PRO’s and 11.7 ± 7.3 years for last clinical evaluation. No difference in overall instability events was seen in either group. Throwers were more likely to present with subluxations while non-throwers were more likely to present with frank dislocations. NOHA and non-throwers were more likely than OHA and throwers to have a history of trauma related to ASI, respectively ( P = <.001, P = .002). Throwers were more likely to undergo an open surgical procedure (45%) than non-throwers (15%) ( P = .038). The rate of recurrent instability between groups was similar. Throwers returned to sport at a lower rate than non-throwers, however this did not reach significance (64% vs 83%, P = .100). Throwers and OHA reported similar WOSI scores, RPP and time to RTP grouped by surgical or conservative management compared to non-throwers and NOHA, respectively. Conclusions: In a US cohort of patients, throwers and OHA had a similar number of instability events compared to non-throwers and NOHA, respectively. Non-throwers and NOHA were more likely to present with frank dislocation which is supported by the significantly higher rates of trauma in both groups. Notably, the WOSI score, RPP, rate of RTP and time to RTP showed no difference between throwers and OHA when compared to their non-throwing and NOHA counterparts.

scholarly journals Latarjet procedure enables 73% to return to play within 8 months depending on preoperative SIRSI and Rowe scores

2021 ◽  
Author(s):  
Yoann Bohu ◽  
◽  
Pierre Abadie ◽  
Floris van Rooij ◽  
Luca Nover ◽  
...  
Keyword(s):  
Shoulder Instability ◽  
Multivariable Analysis ◽  
Return To Sport ◽  
Patient Characteristics ◽  
Return To Play ◽  
Anterior Shoulder Instability ◽  
Latarjet Procedure ◽  
Level Of Evidence ◽  
Injury Index ◽  
Sport Type

Abstract Purpose Systematic reviews report return to play (RTP) within 5.8 months (range, 3–8) following the Latarjet procedure, but the factors that influence RTP remain unknown. The present study aimed to report the rate and time of return to play (RTP) during the first 8 months following the Latarjet procedure, and to determine the influence of sport type or patient characteristics. Methods The authors retrospectively collected the records of patients that underwent Latarjet procedures for anterior shoulder instability between 2015 and 2017. Patients were excluded if they had any concomitant rotator cuff tendon lesions, or previous ipsilateral shoulder surgery. The authors retrieved patient demographics, time from injury to surgery, type of sport practiced (overhead/non-overhead, contact/non-contact), as well as pre- and postoperative Western Ontario Shoulder Instability index (WOSI), Shoulder Instability-Return to Sport After Injury index (SIRSI), and Rowe score. Results A total of 217 patients (217 shoulders) were eligible for inclusion, comprising 184 males and 33 females, aged 26.8 ± 7.3 years at index surgery. The main sport practiced prior to surgery involved overhead (n = 173, 80%) and/or contact (n = 152, 70%) activities. By 8 month follow-up, 158 patients (73%) resumed their main sport, at a mean of 5.1 ± 1.5 months. Multivariable analysis revealed that RTP was more likely in patients with higher preoperative Rowe score (OR, 1.02; p = 0.024) and SIRSI score (OR, 1.02; p = 0.008). Conclusions By 8 months following the Latarjet procedure, 73% of patients had resumed their main sport. The likelihood of RTP was significantly associated with preoperative Rowe and SIRSI scores, but not with sport type. Level of evidence IV.

scholarly journals Outcomes and Return to Sport and Work After Open Bankart Repair for Recurrent Shoulder Instability: A Systematic Review

2021 ◽  
Vol 9 (10) ◽  
pp. 232596712110269
Author(s):  
Khalid AlSomali ◽  
Erica Kholinne ◽  
Thanh Van Nguyen ◽  
Chang-Ho Cho ◽  
Jae-Man Kwak ◽  
...  
Keyword(s):  
Systematic Review ◽  
Shoulder Instability ◽  
Return To Sport ◽  
Bankart Repair ◽  
Cochrane Library ◽  
Anterior Shoulder Instability ◽  
Functional Score ◽  
High Demand ◽  
Recurrent Instability ◽  
Instability Rate

Background: Open Bankart repair provides surgeons and patients with an alternative solution for managing recurrent instability in young athletes with or without minimal bone loss. Despite many studies that have reported low recurrence rates and good functional outcomes after open Bankart repair, we have limited knowledge about the return to sport and work for high-demand populations. Purpose: To assess the return to sport and work for high-demand populations after open Bankart repair for recurrent anterior shoulder instability, outcomes of open Bankart repair with regard to recurrence, and development of osteoarthritic (OA) changes. Study Design: Systematic review; Level of evidence, 4. Methods: We searched PubMed, EMBASE, Cochrane Library, Scopus, and Google Scholar databases using keywords as well as Medical Subject Headings terms and Emtree using “(Open Bankart OR Bankart surgery) (NOT arthroscopy NOT revision)” for English-language studies. We conducted a systematic review in accordance with the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines. Results: In total, 11 articles (10 with level 4 and 1 with level 3 evidence) including 563 patients (566 shoulders) were identified. The majority of patients were male (82%), the average age at the time of surgery was 27.4 years, and the mean follow-up was 11.5 years (range, 2.5-29 years). The most common functional score used was the Rowe score (95%) for the reported outcome measures, which showed good to excellent results (mean, 88.5 points). The overall recurrent instability rate, including dislocation and subluxation as a postoperative complication, was 8.5%. A total of 87% of patients were able to return to sport and work postoperatively. Overall, OA changes were reported in 33% of the patients, and the overall revision rate was 1%. Conclusion: Open Bankart repair exhibited favorable results, with a low postoperative instability rate. It is a reliable surgical procedure that allows high-demand patients to return to sport and work.

scholarly journals Treatment type may influence degree of post-dislocation shoulder osteoarthritis: a systematic review and meta-analysis

2020 ◽  
Author(s):  
Lukas P. E. Verweij ◽  
Erik C. Pruijssen ◽  
Gino M. M. J. Kerkhoffs ◽  
Leendert Blankevoort ◽  
Inger N. Sierevelt ◽  
...  
Keyword(s):  
Operative Treatment ◽  
Shoulder Instability ◽  
Operative Procedures ◽  
Lower Degree ◽  
Anterior Shoulder Instability ◽  
Latarjet Procedure ◽  
Eligibility Criteria ◽  
Level Of Evidence ◽  
Treatment Type

Abstract Purpose Age at primary dislocation, recurrence, and glenoid bone loss are associated with development of osteoarthritis (OA). However, an overview of OA following traumatic anterior shoulder instability is lacking and it is unclear to what degree type of surgery is associated with development of OA in comparison to non-operative treatment. The aim of this study was to determine the degree of OA at long-term follow-up after non-operative and operative treatments for patients with anterior shoulder instability. Surgery is indicated when patients experience recurrence and this is associated with OA; therefore, it was hypothesized that shoulders show a higher proportion or degree of OA following operative treatment compared to non-operative treatment. Methods A literature search was performed in the PubMed/Medline, EMBASE, and Cochrane databases. Articles reporting the degree of OA that was assessed with the Samilson–Prieto or Buscayret OA classification method after non-operative and operative treatment for anterior shoulder instability with a minimum of 5 years follow-up were included. Results Thirty-six articles met the eligibility criteria of which 1 reported the degree of OA for non-operative treatment and 35 reported the degree of OA for 9 different operative procedures. A total of 1832 patients (1854 shoulders) were included. OA proportions of non-operative and operative treatments are similar at any point of follow-up. The Latarjet procedure showed a lower degree of OA compared to non-operative treatment and the other operative procedures, except for the Bristow procedure and Rockwood capsular shift. The meta-analyses showed comparable development of OA over time among the treatment options. An increase in OA proportion was observed when comparing the injured to the contralateral shoulder. However, a difference between the operative subgroups was observed in neither analysis. Conclusion Non-operative and operative treatments show similar OA proportions at any point of follow-up. The hypothesis that shoulders showed a higher proportion or degree of OA following operative treatment compared to non-operative treatment is not supported by the data. Operative treatment according to the Latarjet procedure results in a lower degree of OA compared to other treatments, including non-operative treatment. Level of evidence IV.

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