Delaminated Rotator Cuff Tears Showed Lower Short-term Retear Rates After Arthroscopic Double-Layer Repair Versus Bursal Layer-Only Repair: A Randomized Controlled Trial.

Background: The rotator cuff is known to consist of 2 macroscopically visible layers that have different biomechanical properties. Sometimes the inferior layer may be neglected during rotator cuff repair. However, it is controversial whether double-layer (DL) repair is superior to single-layer (SL) repair in terms of retear rate and outcome.

Infections following arthroscopic rotator cuff repair: incidence, risk factors, and prophylaxis.

Purpose: The primary aim of the present study was to determine the incidence of infections following arthroscopic rotator cuff repair in a single department over a 10-year period. Secondary goals included the evaluation of potential risk factors for infections and to investigate the efficacy of perioperative antibiotic prophylaxis in the reduction of infectious complications.

Methods: A retrospective evaluation of 3294 all-arthroscopic rotator cuff repairs performed between 2004 and 2014 at a single institution was conducted to determine the rate of infection in all-arthroscopic rotator cuff repairs.

Biomechanical evaluation of suture-tendon interface and tissue holding of three suture configurations in torn and degenerated versus intact human rotator cuffs.

Purpose: The purpose of this study was to biomechanically evaluate suture-tendon interface and tissue holding of three sutures in torn and degenerated versus intact human rotator cuffs.

Methods: Sixty-three human rotator cuff tendons were divided into torn degenerated group (TDG), n = 21 and intact group (IG), n = 42. Ultimate tension load (UTL) and cyclic loading were tested for three arthroscopic sutures: simple, horizontal, and massive cuff sutures (MCS).

Intra-articular versus periarticular acromioclavicular joint injection: a multicenter, prospective, randomized, controlled trial.

Purpose: The purpose of this randomized study was to compare the clinical efficacy of intra-articular versus periarticular acromioclavicular joint injections.

Methods: In this multicenter, prospective, randomized, controlled trial, 101 patients (106 shoulders) with symptomatic acromioclavicular joints were treated with an injection and were randomly assigned to either the intra-articular group or the periarticular group. To ensure accurate needle placement either intra-articularly or in a periarticular manner, the needle was placed under ultrasound guidance.

Modification of the Constant-Murley shoulder score-introduction of the individual relative Constant score Individual shoulder assessment.

The Constant-Murley shoulder assessment score has proven to be a valuable diagnostic instrument. Thus, in the literature it has been mentioned that the clinical accuracy of this score varies especially when comparing patients in larger, inhomogeneous patient groups. The "relative Constant score" (CS(rel)) tries to minimize these problems by using reference parameters out of healthy age and gender related control groups.

A new arthroscopic technique for revision of the posterior compartment in symptomatic total knee arthroplasty.

Arthroscopy is effective in treating the symptomatic knee following total knee arthroplasty. A small number of patients complain about postoperative pain in the posterior compartment. Loose bodies and degenerated remnants of the menisci are the main reasons for this pain.