Clinical Trials

The purpose of this study is to evaluate safety and efficacy and show non-inferiority of the investigational PERFORM Stemless Reverse device to the control PERFORM Stem Reverse device in subjects who are candidates for the treatment of noninflammatory degenerative joint disease (i.e., osteoarthritis), avascular necrosis, pseudoparalysis or anterior superior escape, rotator cuff tear arthropathy, correction of functional deformity, and post-traumatic arthritis.

This purpose of this study is to answer if patients fair better with non-operative management or reverse total arthroplasty for treatment of 3- and 4-part proximal humerus fractures.

The purpose of this study is to compare the outcome of primary reverse shoulder arthroplasty using the Stryker ReUnion System with the implantation of either a large (40 mm) or a small (36 mm) glenosphere (shoulder to arm, ball shaped joint).

The purpose of this study is to evaluate the outcomes and complications of anatomic total shoulder and reverse total shoulder arthroplasty systems using bone preserving shoulder arthroplasty system.

Aims, purpose, or objectives

Aim 1: To quantify passive stiffness modifications due to RSA in deltoid muscle.

Aim 2: To interpret these modifications in the light of postoperative clinical outcomes.

The aim of this protocol is to determine clinical, functional, radiographic, and survival outcomes in patients undergoing an uncemented reverse total shoulder arthroplasty for a proximal humerus fracture.

The purpose of this study is to detect whether arm rotation (pronation vs. supination) affects glenohumeral alignment. If so, does this impact what prosthesis would be used for a shoulder arthroplasty?

The purpose of this study is to compare validated clinical and functional outcomes between patients who acutely present with 3- and 4-part Proximal Humerus Fractures (PHFs) treated nonoperatively or with rTSA. We hypothesize that in displaced 3- and 4-part proximal humerus fractures, rTSA will have better pain relief and functional outcomes than nonoperative treatment.

The purpose of the study is a multi-center prospective registry to collect clinical outcomes of anatomic and reverse total shoulder arthroplasty.

The purpose of this study is to to assess the clinical and radiographic outcomes of patients who have undergone shoulder arthroplasty.