Identifying surgeon and institutional drivers of cost in total shoulder arthroplasty: a multicenter study.

Background: Despite rapid increases in the demand for total shoulder arthroplasty, data describing cost trends are scarce. We aim to (1) describe variation in the cost of shoulder arthroplasty performed by different surgeons at multiple hospitals and (2) determine the driving factors of such variation.

Methods: A standardized, highly accurate cost accounting method, time-driven activity-based costing, was used to determine the cost of 1571 shoulder arthroplasties performed by 12 surgeons at 4 high-volume institutions between 2016 and 2018.

Effects of acquired glenoid bone defects on surgical technique and clinical outcomes in reverse shoulder arthroplasty.

Background: Reverse total shoulder arthroplasty is the accepted method of treatment for selected shoulder disorders. The purpose of this study was to compare primary reverse shoulder arthroplasty surgical techniques as well as clinical and radiographic outcomes in patients with acquired glenoid bone defects and in those with normal glenoid morphology.

Methods: Preoperative three-dimensional computed tomography scans were performed on 216 shoulders in 211 patients undergoing primary reverse shoulder arthroplasty between 2004 and 2007.

Results of surgical treatment for unstable distal clavicular fractures.

Hypothesis: Delayed surgical treatment of unstable distal clavicle fractures is associated with a higher complication rate.

Materials And Methods: Between 1998 and 2008, a retrospective study of 38 patients (average age, 42.9 year) with Neer type II clavicular fractures was performed.