Dr. Chalmers is invited to speak at Major League Baseball’s Winter Meetings.
HEALING RATES AND FUNCTIONAL OUTCOMES AFTER TRIPLE-LOADED SINGLE-ROW VERSUS TRANSOSSEOUS-EQUIVALENT DOUBLE-ROW ROTATOR CUFF TENDON REPAIR
Although healing rates and outcomes of arthroscopic single-row rotator cuff repairs have been compared with double-row repairs, none have utilized triple-loaded anchors.
To compare healing and function after single-row repairs with triple-loaded anchors versus double-row repairs with a suture-bridge technique.
Trauma can fracture the scapular neck. Typically, a single plate along the lateral scapula border affixes the glenoid fragment to the scapula. This method is limited by difficulty in screw placement, frequent excessive soft tissue dissection, and risk for neurovascular injury. Substituting 2 smaller plates bridging the scapular neck mitigates these limitations, but no comparative mechanical data between techniques exists. Therefore, we compared the mechanical properties of two constructs securing a simulated scapular neck fracture.
Dr. Chalmers research is presented in Geneva, Switzerland
Glenohumeral cerclage for salvage of recalcitrant instability after reverse total shoulder arthroplasty
Reverse total shoulder arthroplasty (rTSA) reliably reduces pain and improves function in patients with rotator cuff arthropathy, failed shoulder arthroplasty, proximal humeral fractures, and irreparable rotator cuff tears.4 Nevertheless, postoperative complications are common, and reported rates range between 7% and 21%, with instability being among the most common.7,11 Instability rates after rTSA have ranged between 0% and 16% with risk factors including male sex, high body mass index, rTSA as revision for a prior failed arthroplasty, failure to adequately tension the soft tissues, and component impingement.
Superior Baseplate Inclination Is Associated With Instability After Reverse Total Shoulder Arthroplasty
Instability is the most common complication after reverse total shoulder arthroplasty (rTSA). In the native glenohumeral joint, in addition to full dislocations, more subtle forms of instability exist. However, the incidence of more subtle forms of instability, the factors associated with instability, and the effect of instability on validated outcome scores after rTSA remain poorly understood.
The objectives of this study were to determine whether glenoid inclination (1) could be measured accurately on magnetic resonance imaging (MRI) using computed tomography (CT) as a gold standard, (2) could be measured reliably on MRI, and (3) whether it differed between patients with rotator cuff tears and age-matched controls without evidence of rotator cuff tears or glenohumeral osteoarthritis.