INTRODUCTION Glenoid component loosening is the main complication of total shoulder arthroplasty. Better knowledge of the arthritic glenoid cavity anatomy can help in developing new implants and techniques. The goal of this study was to describe and validate the reproducibility of a CT scan-based, 3D measurement method used to describe various parameters characterizing arthritic glenoid cavity ...

Monoidal width was recently introduced by the authors as a measure of complexity decomposing morphisms in monoidal categories. We have shown that category cospans graphs, and its variants can be used to capture tree width, path branch width. In this paper we study matrices, an extension different open where connectivity information is handled with matrix algebra graphs are composed along edges ...

BACKGROUND AND PURPOSE Alternative computer keyboards whose halves can be slanted toward each other can reduce a risk factor (ulnar deviation) for work-related musculoskeletal disorders (WMSDs) affecting the upper limbs. Two questions that computer keyboard operators face when using keyboards that can be separated into halves (split keyboards) are: (1) At what angle should the keyboard halves b...

background: identifying the predisposing factors of neck and shoulder complaints and finding solutions to avoid them could improve the occupational health condition of the nurses. in this study, we aimed at determining the role of psychological and physical occupational factors in developing neck and shoulder complaints among the participants.   methods: this analytic cross-sectional study was ...

conclusions generalized ligamentous laxity is an important predisposing factor for acute and chronic shoulder injuries in athletes. prescreening programs for beginners and rehabilitation shoulder programs for sports athletes at high risk are strongly recommended. results group a (with ligamentous laxity) consisted of 43 participants (36.4%) and group b (without ligamentous laxity) consisted of ...

BACKGROUND The Latarjet procedure for the treatment of recurrent anterior shoulder instability is highly successful, but reasons for failure are often unclear. Measurements of the "glenoid track" have not previously been evaluated as potential predictors of postoperative stability. HYPOTHESIS There are clinical and anatomic characteristics, including the glenoid track, that are predictive of ...

abstract a 2.5 year old girl is presented with both hands constriction bands leading to distal amputations and the rare deformity of shoulder duplication in the right side accompanying constriction skin marking over the affected shoulder. the cephalomedial scapula articulated with the clavicle and the caudolateral scapula articulated with humeral head. the most important physical finding which ...