Two-year follow-up of the SMR stemless platform shoulder system: a multicenter, prospective clinical study.

Background: The use of stemless shoulder arthroplasty for osteoarthritis has grown substantially over the past decades. The goal of this study is to evaluate the clinical and radiological outcomes of the Lima SMR stemless anatomic and reverse total shoulder arthroplasty.

Methods: Seventy-three implants in 73 patients (61 anatomic total shoulder arthroplasties [aTSAs] and 12 reverse shoulder arthroplasties [RSAs]) were analyzed with a minimum follow-up of 2 years.

Superior functional outcome following reverse shoulder arthroplasty compared to hemiarthroplasty for displaced three- and four-part fractures in patients 65 and older: results from a prospective multicenter randomized controlled trial - The shoulder hemiarthroplasty or reverse polarity arthoplasty (SHeRPA) trial.

Background: Acute unreconstructible 3- or 4-part proximal humerus fractures can be treated with hemiarthroplasty or reverse polarity shoulder arthroplasty. Randomized trials using implants from multiple different companies or uncemented implants have found superior results with reverse polarity arthroplasty.

Hypothesis: We tested the hypothesis that cemented reverse polarity arthroplasty produces a superior outcome compared to cemented hemiarthroplasty using one implant system in patients aged 65 years and over at 12 months follow-up as measured with the Constant Score.

Reducing unnecessary fixation of midshaft clavicle fractures.

Purpose: Displaced midshaft clavicle fractures have a non-union rate of 10-20%. Those who unite with conservative treatment have similar outcomes to those who undergo operative treatment; therefore, protocols to identify potential non-unions are important to avoid unnecessary surgery. The aim of this study is to report one such protocol.

Beware of glenoid dysplasia mimicking bone trauma in the injured shoulder.

The term 'primary glenoid dysplasia' is used to describe a rare developmental abnormality of the shoulder. The symptomatic presentation of glenoid dysplasia has two definite age-related peaks. The first peak is in adolescents and young adults; they generally present with symptoms of instability related to high levels of activity.

Superior mesenteric artery syndrome following surgery for scoliosis.

Study Design: A retrospective report of three cases outlining upper intestinal obstruction as a rare complication following surgery for scoliosis.

Objective: To present the clinical features, progression, and management of duodenal obstruction due to superior mesenteric artery compression after surgical treatment of scoliosis.

Summary Of Background Data: Superior mesenteric artery or cast syndrome has been reported historically in the literature.