Comparison of the clinical efficacy of three internal fixation methods in the treatment of Edinburgh type IB fractures of the proximal clavicle.

Clavicle fractures are one of the most common fractures and usually occur in the medial third of the clavicle. The study explored the efficacy of three internal fixation methods to treat Edinburgh IB fractures of the proximal clavicle. 68 patients with Edinburgh IB fractures of the proximal clavicle were divided into T-shaped plate group, double-miniature steel plate group and memory alloy embracing device group.

Comparison of four different internal fixation methods in the treatment of distal clavicle fractures.

This study compared the clinical efficacy of four internal fixation methods in the treatment of distal clavicle fractures, in an effort to guide appropriate selection and application in the clinic. Eighty-four patients with distal clavicle-comminuted fractures were treated with a distal clavicle anatomic plate (group A), clavicular hook plate (group B), double-plate vertical fixation (group C), or T-shaped steel plate internal fixation (group D). The Constant-Murley scoring system was used to evaluate the shoulder joint function.

Clavicle hook plate versus distal clavicle locking plate for Neer type II distal clavicle fractures.

Background: The purpose of this meta-analysis was to compare clavicle hook plates versus distal clavicle locking plates for the treatment of Neer type II distal clavicle fractures.

Methods: PubMed (1996 to January 2019), Embase (1980 to January 2019), Web of Science (1990 to January 2019), the Cochrane Library (January 2019), and the China National Knowledge Infrastructure (January 2019) were systematically searched without language restrictions for literature retrieval. The Constant-Murley shoulder joint function score at 3 and 6 months after the operation and the postoperative complications after the operation (shoulder joint pain, abduction restriction, fracture delay healing, subacromial impingement) were the outcomes.

Omnidirectional beam steering using aperiodic optical phased array with high error margin.

We propose a pattern-search-like algorithm to design an aperiodic optical phased array for extensive applications in light detection and ranging and free-space communication. The designed phased array with 128 isotropic elements achieves a scan range, peak side-lobe level, minimum beam width, and mean pitch of ± 82°, -14.34 dB, 0.