2022 AOSSM Annual Meeting Recordings with CME-“Distance to Dislocation” as a Predictor of Surgical Failure Following Primary Arthroscopic Anterior Labral Repair: Rethinking the Glenoid Track Concept

“Distance to Dislocation” as a Predictor of Surgical Failure Following Primary Arthroscopic Anterior Labral Repair: Rethinking the Glenoid Track Concept

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Video Transcription

Video Summary

In this video, the speaker discusses the importance of evaluating and treating shoulder instability. The glenoid track concept is introduced as a method to determine which shoulders are at the highest risk of recurrent dislocation after arthroscopic bankart repair. Recent studies have shown that not all on-track shoulders are the same, and the ratio of the Hill-Sacks interval to the glenoid track can determine the risk of recurrent dislocation and patient outcome. The concept of distance to dislocation is then introduced, which measures how close an on-track shoulder is to being off-track. A retrospective study evaluated 249 patients and found that as distance to dislocation approaches zero, the rate of recurrent dislocation significantly increases. The study also found that collision sport athletes have a higher risk of recurrent dislocation at certain distance to dislocation values compared to non-collision athletes. The findings suggest that the glenoid track concept should be viewed as a continuum of pathology rather than a binary outcome. The limitations of the study include retrospective data and potential bias.

Asset Caption

Aaron Barrow, MD

Keywords

shoulder instability

glenoid track concept

recurrent dislocation

arthroscopic bankart repair

Hill-Sacks interval