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The Trillat Procedure for Anterior Glenohumeral Instability

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» Anterior glenohumeral instability (AGI) is a challenging condition that requires close attention to osseous and soft-tissue abnormalities. The morphometric variance of the periarticular scapular anatomy may be involved in… Click to show full abstract

» Anterior glenohumeral instability (AGI) is a challenging condition that requires close attention to osseous and soft-tissue abnormalities. The morphometric variance of the periarticular scapular anatomy may be involved in the pathogenesis of recurrent traumatic anterior instability.» The Trillat procedure repositions the coracoid medially and downward by a partial wedge osteotomy, mimicking the sling effect of the Latarjet procedure by moving the conjoint tendon closer to the joint line in throwing position. The Trillat procedure decreases the coracohumeral distance without affecting the integrity of the subscapularis muscle and tendon.» Joint preservation methods, such as the Trillat procedure, may be explored in older patients to treat AGI with simultaneous irreparable rotator cuff tears (RCTs) with a static centered head and a functional subscapularis.» Shoulder hyperlaxity and instability can be challenging to treat with isolated soft-tissue procedures. In cases without glenoid bone loss, free bone block techniques are ineffective because of the subsequent potential graft resorption, apprehension, or recurrence. The Trillat surgery, in conjunction with an anteroinferior capsuloplasty, seems to be helpful in preventing recurrent instability and in reducing shoulder apprehension.» Recently, several variations of the original technique have been described. In the future, anatomical, biomechanical, and clinical studies need to be conducted to further evaluate the morphometric characterization of the procedure, enhance the technical features, improve indications, and avoid coracoid impingement and other potential complications with the Trillat procedure.

Keywords: anterior glenohumeral; procedure; instability trillat; glenohumeral instability; trillat procedure

Journal Title: JBJS Reviews
Year Published: 2022

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