Modified notching classification in inverted-bearing and conventional-bearing reverse total shoulder arthroplasty.

Background: Scapular notching is a common complication of reverse total shoulder arthroplasty (RTSA). Although the notching rate has reduced significantly thanks to modifications to the surgical technique and humeral and glenoid components, uncontrollable polyethylene (PE)-induced osteolysis can still occur. In contrast to conventional-bearing (CB-RTSA), inverted-bearing RTSA (IB-RTSA) systems, with PE glenospheres and metal or ceramic humeral liners, avoid PE abrasion through scapulohumeral contact.

Reverse shoulder arthroplasty with an inverted-bearing prosthesis as revision procedure for failed anatomic and reverse shoulder arthroplasty: a long-term multicenter study.

Background: Despite the increasing use of revision reverse total shoulder arthroplasty (RTSA), studies directly comparing revision RTSA performed for different failed index procedures are limited. We therefore compared the results of revision RTSA between patients with a failed primary anatomic arthroplasty (total shoulder arthroplasty and hemiarthroplasty) and those with a failed primary RTSA to explore revision of which index procedure resulted in better long-term clinical outcomes.

Methods: In this prospective, multicenter, observational study, patients underwent revision RTSA using an inverted-bearing prosthesis.

Conversion of Hemiarthroplasty to Reverse Shoulder Arthroplasty with Humeral Stem Retention.

The purpose of this study is to evaluate the mid-term clinical results of an ongoing case series on conversion reverse shoulder arthroplasty (RSA) with a modular prosthesis system. We included 17 elderly patients revised for failed hemiarthroplasty after proximal humeral fracture, of which 13 were converted using a modular reverse shoulder prosthesis. Four could not be converted due to overstuffing.

Inverted-bearing reverse total shoulder arthroplasty: scapular notching does not affect clinical outcomes and complications at up to 7 years of follow-up.

Background: Scapular notching is a common complication of reverse total shoulder arthroplasty (RTSA). Inverted-bearing RTSA (IB-RTSA) systems, with polyethylene (PE) glenospheres and metal or ceramic humeral liners, reduce notching and PE wear compared with traditional Grammont prosthesis designs. However, whether notching after IB-RTSA influences clinical outcomes or complications remains unknown.

Cement pressurizing reduces radiolucent lines at glenoid: A randomized, multicentric study.

Background: The hypothesis of this study is that cement pressurization into the glenoid reduces the rate of radiolucent lines in total shoulder arthroplasty in the mean 25.5 months after the operation.

Methods: To examine this effect, a multicentric prospective randomized study (level of evidence 1) was initiated: one group (group P, n = 24) received intraoperative pressurization of cement into the cancellous bone of the glenoid, the other cement without pressure (group NoP, n = 27).

Reverse total shoulder arthroplasty in massive rotator cuff tears: does the Hamada classification predict clinical outcomes?

Introduction: Reverse total shoulder arthroplasty (RTSA) is a widely recognized treatment to reduce pain and improve shoulder function for patients in various disease stages of cuff tear arthropathy (CTA). However, it remains unclear whether outcomes after RTSA depend on the preoperative stage of CTA. Therefore, this study evaluated whether the Hamada classification influences midterm clinical outcomes after RTSA.

Treatment effects of reverse total shoulder arthroplasty - a simple method to measure outcomes at 6, 12, 24 and 60 months for each patient.

Background: Although shoulder arthroplasty is less common than knee or hip arthroplasty, the number of procedures being performed is increasing rapidly. The treatment effect is a simple method to measure outcome of joint replacement. The method was applied to measure results of total hip/knee arthroplasty but not yet for shoulder arthroplasty.

Reverse Shoulder Arthroplasty in Acute Fractures of the Proximal Humerus: Does Tuberosity Healing Improve Clinical Outcomes?

Objective: To evaluate the clinical outcomes of reverse shoulder arthroplasty (RSA) in elderly patients with proximal humeral fractures and assess the role of tuberosity healing on the outcome.

Design: Case series.

Setting: Multicenter clinical study of Level-2 trauma centers.

Reversed shoulder arthroplasty with inversed bearing materials: 2-year clinical and radiographic results in 101 patients.

Introduction: This study documents 2-year clinical and radiographic results following reversed total shoulder arthroplasty using a novel prosthesis with inverted bearing materials (polyethylene glenoid; metal humeral component). This design was intended to avoid massive PE abrasion on the humeral side. Therefore, we predicted a lack of subsequent osteolysis-induced exacerbation of scapular notching, and because of other design features and modified operating technique a reduced notching rate.

Report of a rare case of gorham-stout disease of both shoulders: bisphosphonate treatment and shoulder replacement.

Massive osteolysis known as Gorham-Stout disease is a rare idiopathic disorder typically affecting long bones in a unifocal pattern. Angiomatosis is strongly connected to the osteolysis. Weather angiomatosis is the cause or the result of osteolysis is subject of intense discussion (Kawasaki et al.

Functional outcome of shoulder hemiarthroplasty for fractures: A multicentre analysis.

Unlabelled: In this multicentre study, data on 102 shoulder hemiarthroplasties for the treatment of fractures were analysed retrospectively with regard to tuberosity healing and functional outcome.

Methods: Clinical outcome was assessed using the constant score (CS) and the American Shoulder and Elbow Score (ASES). The mean follow-up time was 28.

Management of humeral head fractures with a trauma shoulder prosthesis: correlation between joint function and healing of the tuberosities.

This prospective follow-up study investigated the correlation between healing of the tuberosities and the functional outcome after arthroplasty with a trauma shoulder prosthesis in elderly patients with non-reconstructible humeral head fractures. Surgery was performed on 65 patients (66 shoulders) with a mean age of 74.9 years.