BACKGROUND Studies have reported on the arthroscopic technique for release of external snapping hip syndrome. However, no study with large sample size has been reported for arthroscopic surgery. METHODS Patients with 229 bilateral and 19 unilateral external snapping hips were treated from January 2012 to June 2013. After locating the contracture position, arthroscopic surgery was performed ac...

BACKGROUND The existence of sensory branches of the suprascapular nerve (SSN) has recently been reported, and sensory disturbance at the lateral and posterior aspect of the shoulder has been focused on as a symptom of SSN palsy. We have performed arthroscopic release of SSN at the suprascapular notch in patients with sensory disturbance since 2006. The purposes of this study were to introduce t...

Aim. To prospectively assess the effectiveness of revision with open subacromial decompression in patients who had a previous unsatisfactory outcome with the arthroscopic procedure. Methods. 11 patients were identified for the study, who did not demonstrate expected improvement in symptoms after arthroscopic acromioplasty. All patients underwent structured rehabilitation. Functional evaluation ...

Scapula neck fractures are rare injuries, leaving several treatment options. Standardized markers for operative treatment are a decreased glenopolar angle ≤22°, lateral border offset (LBO) of the glenoid ≥20 mm, angular deformity ≥45°, or LBO ≥15 mm plus angular deformity ≥35°. If operative treatment is not performed before union, the fracture heals malaligned with possible mechanical complicat...

Arthroscopic shoulder surgery can be performed in both the beach chair and lateral decubitus positions. The beach chair position is a reliable, safe, and effective position to perform nearly all types of shoulder arthroscopic procedures. The advantages of the beach chair position include the ease of setup, limited brachial plexus stress, increased glenohumeral and subacromial visualization, ane...

Subtle instability problems of the glenohumeral joint and patellofemoral joint are difficult to assess and accurately diagnose with current methods of preoperative imaging and physical examination. A simple technique is described that provides objective information for diagnosing dynamic problems of the shoulder and patellofemoral joint. Limited-volume gas arthroscopy avoids many of the potenti...

Pigmented villonodular synovitis (PVNS) is a benign aggressive disease that presents in either a localized (LPVNS) or diffuse (DPVNS) form. Arthroscopic synovectomy is the standard operative treatment for LPVNS, and when used to treat DPVNS, it is usually combined with an open posterior procedure. The purpose of this Technical Note is to report the technique that we have refined to allow for ar...

Moduli spaces for Galois covers of p-adic Mumford curves by Mumford curves are constructed using Herrlich’s Teichmüller spaces, André’s orbifold fundamental groups, and Kato’s graphs of groups encoding ramification data of charts for Mumford orbifolds.

Our study consists, in those cases, in a new ACL refixation technique, with the aim of preserving the native ACL and his mechanoreceptors that lead to a better proprioception and stability. Moreover, drilling the femoral bone leads to a lack of bone marrow stem cells that promote the healing of the ligament, as described by Steadman et al. [4] in the “healing response technique”, an all-arthros...