Posterior open wedge osteotomy of the scapula neck for the treatment of advanced shoulder osteoarthritis with posterior head migration in young patients.

Background: Treatment of young, active patients with symptomatic glenohumeral osteoarthritis, excessive glenoid retroversion, and static posterior humeral subluxation is challenging. Correction of glenoid retroversion may lead to centric loading and perhaps recenter the humeral head. We describe the functional and radiologic outcomes after corrective osteotomy of the glenoid in this population of patients.

Quadruple ESIN (Elastic Stable Intramedullary Nailing): Modified Treatment in Pediatric Distal Tibial Fractures.

Purpose: Nailing of the tibial shaft with 2 Prevot nails is the gold standard for tibial shaft fractures in children. This technical report aims to show a simple way to stabilize pediatric distal tibial fractures without changing of the operation method.

Methods: A retrospective chart review of all distal tibial fractures treated with the modified elastic stable intramedullary nailing (ESIN) method during a 6-year period was conducted.

Classification of proximal humeral fractures based on a pathomorphologic analysis.

Background: The purpose of this study was to analyze the pathomorphology of proximal humeral fractures to determine relevant and reliable parameters for fracture classification.

Methods: A total of 100 consecutive acute proximal humeral fractures in adult patients were analyzed by 2 non-independent observers from a single shoulder department using a standardized protocol based on biplane radiographs and 3-dimensional computed tomography scans. A fracture classification system based on the most reliable key features of the pathomorphologic analysis was created, and its reliability was tested by 6 independent shoulder experts analyzing another 100 consecutive proximal humeral fractures.

Midterm outcome and complications after minimally invasive treatment of displaced proximal humeral fractures in patients younger than 70 years using the Humerusblock.

Introduction: The Humerusblock (HB) represents a minimally invasive implant allowing for the stabilisation of proximal humeral fractures after closed or percutaneous reduction. The aim of the study was to perform a general clinical and radiological midterm follow-up focusing on the quality and complications in a large series of patients of younger age (<70 years).

Patients And Methods: A total of 126 patients with an average age of 53.

ACL injuries and stem cell therapy.

Tears of the anterior cruciate ligament (ACL) are very frequent injuries, particularly in young and active people. Arthroscopic reconstruction using tendon auto- or allograft represents the gold-standard for the management of ACL tears. Interestingly, the ACL has the potential to heal upon intensive non-surgical rehabilitation procedures.

Bupivacaine induces short-term alterations and impairment in rat tendons.

Background: Toxicity of the local anesthetic bupivacaine (BV) has been a matter of debate across medical fields. Numerous in vitro studies demonstrate considerable toxicity of BV on various cell types.

Purpose: This study addresses the question of how tendon tissue responds to BV in vivo and in vitro.

Restoration of anterior glenoid bone defects in posttraumatic recurrent anterior shoulder instability using the J-bone graft shows anatomic graft remodeling.

Background: The J-bone graft technique has previously been reported for anatomic restoration of the bony glenoid surface in cases of posttraumatic recurrent anterior shoulder instability with significant glenoid bone loss.

Purpose: To analyze the physiological remodeling process of the J-bone graft over time.

Study Design: Case series; Level of evidence, 4.

Pre-participation examination of competitive athletes: role of the ECG.

Sudden cardiac death in athletes is rare but has a wide social impact because it confronts the general population with the paradox that athletes perceived and admired as the fittest and healthiest suddenly drop dead during their sport. Mass media coverage is guaranteed in the case of sudden cardiac death of a top athlete, while other competitive and noncompetitive athletes of all ages, team members, sponsors, as well as huge parts of society remain puzzled and frightened. Therefore, debate is ongoing regarding how to minimize the number of fatalities, and the search continues for a cost-effective preparticipation screening for competitive athletes.