Subscapularis tenotomy versus lesser tuberosity osteotomy during total shoulder arthroplasty for primary osteoarthritis: a prospective, randomized controlled trial.

Background: There is no current consensus on subscapularis mobilization during total shoulder arthroplasty. The purpose of this prospective, randomized controlled trial was to compare functional and radiographic outcomes of the more traditional subscapularis tenotomy (ST) versus lesser tuberosity osteotomy (LTO).

Methods: This study enrolled 60 shoulders in 59 patients with primary osteoarthritis.

Clinical and Radiographic Outcomes of Total Shoulder Arthroplasty With a Hybrid Dual-Radii Glenoid Component.

In total shoulder arthroplasty (TSA), glenoid prostheses have conforming or nonconforming designs. A hybrid glenoid was designed with dual radii of curvature: a central conforming region surrounded by an outer nonconforming region. We retrospectively reviewed the cases of 169 patients who underwent 196 hybrid glenoid prosthesis TSAs for primary glenohumeral arthritis.

Glenoid component loosening associated with increased critical shoulder angle at midterm follow-up.

Background: Glenoid component loosening is a common failure mode of total shoulder arthroplasty (TSA). A larger critical shoulder angle (CSA) may cause superior glenoid component loading and more rapid component loosening. The purpose of this study was to define the relationship between the CSA and glenoid component loosening in midterm follow-up after TSA.

Reliability of 3-Dimensional Glenoid Component Templating and Correlation to Intraoperative Component Selection.

Although implant-specific intraoperative targeting devices for glenoid sizing exist, a validated method for preoperatively templating glenoid component size in primary total shoulder arthroplasty (TSA) based on digital imaging does not. We conducted a study to determine if 3-dimensional (3-D) digital imaging could be used for preoperative templating of glenoid component size and to compare templated glenoid sizes with implanted glenoid sizes. We created 3-D digital models from 3 glenoid component implant sizes and preoperative scapular computed tomography scans of 24 patients who underwent primary TSA.

Risk factors associated with blood transfusion after shoulder arthroplasty.

Background: Closed-suction drainage has been studied extensively in hip and knee arthroplasty literature. However, little is known about outcomes in patients treated with drainage after shoulder arthroplasty, particularly relative to transfusion requirements.

Methods: All primary total and reverse total shoulder arthroplasties (TSAs and RSAs) performed at a single institution during a 5-year period were retrospectively reviewed.