Faculty Bibliography

The biomechanical concepts underlying total shoulder arthroplasty including differences between the anatomic total and reverse total shoulder arthroplasty (RTSA) are reviewed. The concept of lateralization and its implications on outcomes after RTSA is explained through a historical perspective. Finally, how lateralization can be achieved via different components of an RTSA construct, as well as the potential disadvantages or trade-offs that must be considered when lateralizing in reverse shoulder arthroplasty, are discussed.

The Latarjet-Patte procedure has a long and storied history that predates shoulder arthroscopy, but its popularity has increased over the past two decades as a treatment for anterior glenohumeral instability with bone loss. Transfer of the coracoid process and conjoint tendon to the anteroinferior glenoid creates a triple-blocking effect that is both static and dynamic, lending it biomechanical superiority over alternative bone block techniques. Patients undergoing the Latarjet-Patte procedure have low rates of recurrent instability compared to arthroscopic soft-tissue stabilization procedures, particularly in the setting of glenoid- and humeral-sided bone loss. A number of technical innovations have been developed in recent years to improve the efficacy of this procedure and to reduce its potential complications, although their associated learning curves and potential for widespread adoption remain unclear. In this article, we review the history, indications, outcomes, and future of this surgical technique.

PURPOSE/OBJECTIVE:The purpose of this study was to establish consensus statements via a modified Delphi process on revision surgery, rehabilitation and return to play, and clinical follow-up for anterior shoulder instability. METHODS:A consensus process on the treatment using a modified Delphi technique was conducted, with 65 shoulder surgeons from 14 countries across 5 continents participating. Experts were assigned to one of 9 working groups defined by specific subtopics of interest within anterior shoulder instability. RESULTS:The primary relative indications for revision surgery include symptomatic apprehension or recurrent instability, additional intra-articular pathologies, and symptomatic hardware failure. In revision cases, the differentiating factors that dictate treatment are the degree of glenohumeral bone loss and rotator cuff function/integrity. The minimum amount of time before allowing athletes to return to play is unknown, but other factors should be considered, including restoration of strength, range of motion and proprioception, and resolved pain and apprehension, as these are prognostic factors of reinjury. Additionally, psychological factors should be considered in the rehabilitation process. Patients should be clinically followed up for a minimum of 12 months or until a return to full, premorbid function/activities. Finally, the following factors should be included in anterior shoulder instability-specific, patient-reported outcome measures: function/limitations impact on activities of daily living, return to sport/activity, instability symptoms, confidence in shoulder, and satisfaction. CONCLUSION/CONCLUSIONS:Overall, 92% of statements reached unanimous or strong consensus. The statements that reached unanimous consensus were indications and factors affecting decisions for revision surgery, as well as how prior surgeries impact procedure choice. Furthermore, there was unanimous consensus on the role of psychological factors in the return to play, considerations for allowing return to play, as well as prognostic factors. Finally, there was a lack of unanimous consensus on recommended timing and methods for clinical follow-up. LEVEL OF EVIDENCE/METHODS:Level V, expert opinion.

PURPOSE/OBJECTIVE:The purpose of this study was to establish consensus statements via a modified Delphi process on the Latarjet procedure, remplissage, and glenoid-bone grafting for anterior shoulder instability. METHODS:A consensus process on the treatment utilizing a modified Delphi technique was conducted, with 65 shoulder surgeons from 14 countries across 5 continents participating. Experts were assigned to one of 9 working groups defined by specific subtopics of interest within anterior shoulder instability. RESULTS:The technical approaches identified in the statements on the Latarjet procedure and glenoid bone-graft were that a subscapularis split approach should be utilized, and that it is unclear whether a capsular repair is routinely required. Furthermore, despite similar indications, glenoid bone-grafting may be preferred over the Latarjet in patients with bone-loss greater than can be treated with a coracoid graft, and in cases of surgeon preference, failed prior Latarjet or glenoid bone-grafting procedure, and epilepsy. In contrast, the primary indications for a remplissage procedure was either an off-track or engaging Hill-Sachs lesion without severe glenoid bone loss. Additionally, in contrast to the bone-block procedure, complications following remplissage are rare, and loss of shoulder external rotation can be minimized by performing the tenodesis via the safe-zone and not over medializing the fixation. CONCLUSION/CONCLUSIONS:Overall, 89% of statements reached unanimous or strong consensus. The statements that reached unanimous consensus were the prognostic factors that are important to consider in those undergoing a glenoid bone-grafting procedure including age, activity level, Hill-Sachs Lesion, extent of glenoid bone-loss, hyperlaxity, prior surgeries, and arthritic changes. Furthermore, there was unanimous agreement that it is unclear whether a capsular repair is routinely required with a glenoid bone graft, but it may be beneficial in some cases. There was no unanimous agreement on any aspect related to the Latarjet procedure or Remplissage. LEVEL OF EVIDENCE/METHODS:Level V, expert opinion.

PURPOSE/OBJECTIVE:The purpose of this study was to establish consensus statements via a modified Delphi process on the diagnosis, nonoperative management, and Bankart repair for anterior shoulder instability. METHODS:A consensus process on the treatment using a modified Delphi technique was conducted, with 65 shoulder surgeons from 14 countries across 5 continents participating. Experts were assigned to one of 9 working groups defined by specific subtopics of interest within anterior shoulder instability. RESULTS:The independent factors identified in the 2 statements that reached unanimous agreement in diagnosis and nonoperative management were age, gender, mechanism of injury, number of instability events, whether reduction was required, occupation, sport/position/level played, collision sport, glenoid or humeral bone-loss, and hyperlaxity. Of the 3 total statements reaching unanimous agreement in Bankart repair, additional factors included overhead sport participation, prior shoulder surgery, patient expectations, and ability to comply with postoperative rehabilitation. Additionally, there was unanimous agreement that complications are rare following Bankart repair and that recurrence rates can be diminished by a well-defined rehabilitation protocol, inferior anchor placement (5-8 mm apart), multiple small-anchor fixation points, treatment of concomitant pathologies, careful capsulolabral debridement/reattachment, and appropriate indications/assessment of risk factors. CONCLUSION/CONCLUSIONS:Overall, 77% of statements reached unanimous or strong consensus. The statements that reached unanimous consensus were the aspects of patient history that should be evaluated in those with acute instability, the prognostic factors for nonoperative management, and Bankart repair. Furthermore, there was unanimous consensus on the steps to minimize complications for Bankart repair, and the placement of anchors 5-8 mm apart. Finally, there was no consensus on the optimal position for shoulder immobilization. LEVEL OF EVIDENCE/METHODS:Level V, expert opinion.

Case/UNASSIGNED:We report a rare case of a spontaneous, atraumatic rupture of the anterior and middle heads of the deltoid with an underlying massive rotator cuff tear. Unique clinical findings included a palpable mass of torn deltoid distally with a proximal tissue defect. Magnetic resonance imaging of the deltoid demonstrated complete tear of the anterior head; involvement of the middle head was found intraoperatively. Given the acute nature of injury and potential impact on the feasibility of future reverse shoulder arthroplasty, surgical repair of the torn deltoid was discussed with the patient and performed via superior approach. Conclusion/UNASSIGNED:Direct surgical repair is a viable treatment option if diagnosed early.

We present a case of a surgically treated latissimus dorsi (LD) and teres major (TM) tear with a one-year outcome. The postoperative course was complicated by wound dehiscence requiring operative intervention and neuropraxia of the posterior cutaneous nerve of the arm. The report highlights previously unreported surgical risks associated with repair of LD/TM tendons.

BACKGROUND:The objective of this study is to assess patient satisfaction and preference for telemedicine- versus in-person visits for outpatient shoulder and elbow musculoskeletal consultation during the COVID-19 pandemic and in the future. METHODS:Patients who had telemedicine visits for shoulder and elbow musculoskeletal complaints at a single institution from March through June, 2020, were invited to respond to a post-visit survey. The survey included a standardized questionnaire that focused on the patient's satisfaction with the telemedicine visit(s) during the pandemic and preference for using the telemedicine platform in the future following the pandemic. Additional details regarding their virtual visits (severity of their medical condition, previous virtual- or ER visits) were also obtained. Data regarding patient demographics and visit details (primary diagnosis, type of visit, length of visit, treating physician) were extracted from electronic medical records. RESULTS:In total, 153 patients participated in the study. Overall, high satisfaction scores regarding the telemedicine visit were noted: 91% of patients reported that their concerns were adequately addressed, 89% would recommend telemedicine to a friend and 94% stated that they would use this platform again in the presence of a situation like the COVID-19 pandemic. However, the majority of patients (76%) reported a preference for in-person visits for the same musculoskeletal complaint if it were not for COVID-19. A telemedicine visit duration of more than 10 minutes and a first-time telemedicine visit correlated with higher satisfaction rates (P=0.037 and P=0.001, respectively). CONCLUSIONS:COVID-19 has provided a boost to the use of our telemedicine platform, with a high satisfaction rate among patients with shoulder and elbow musculoskeletal complaints, largely due to safety reasons and limited access to in-person doctor visits. However, a considerable number of patients would have preferred in-person visits for similar health complaints if there were no pandemic. Further research on optimizing the selection of patients for telemedicine visits and addressing their expectations and concerns regarding their visits will improve patients' preference for future telemedicine visits.

Purpose/UNASSIGNED:The purpose of this study is to evaluate the patient-reported outcomes of open Latarjet (OL) compared to arthroscopic Latarjet (AL) for anterior shoulder instability. Methods/UNASSIGNED:value of < .05 was considered to be statistically significant. Results/UNASSIGNED: = .84). Conclusion/UNASSIGNED:In patients with anterior shoulder instability, both the OL and AL are reliable treatment options, with a low rate of recurrent instability, and similar patient-reported outcomes.