Clinical features and ultrasound findings of a rare musculoskeletal system disease-neuromuscular choristoma.

Background: Neuromuscular choristomas (NMCs), are extremely rare developmental lesions that, have been previously established associated with recurrent fibromatosis after surgery, leading to several operations or even amputation. However, reports on the ultrasound imaging features and clinical conditions of NMCs are rare. The purpose of this study is to describe the ultrasound features and clinical analysis of NMCs to provide suggestions to identify the optimal management strategy.

The Influence of Personality and Demographic Characteristics on Aggressive Driving Behaviors in Eastern Chinese Drivers.

Purpose: Road safety research is important due to the large number of road traffic fatalities globally. This study investigated the influences of age, driving experience and other covariates on aggressive driving behavior.

Methods: A cross-sectional survey was conducted in Yixing City, Wuxi City, Jiangsu Province, China.

Clinical and Epidemiological Features Among Patients with Wrist Arthroscopy Surgery: A Hospital-based Study in China.

Propose: To analyze the clinical and epidemiological features of patients who underwent wrist arthroscopy procedures.

Methods: This is a cross-sectional epidemiological study. The study included a cohort of patients who underwent wrist arthroscopy procedures in a national orthopaedic referral center from 1 February, 2014 to 1 February, 2019.

Radial Pronation Angle: A Novel Radiological Evaluation Index of Congenital Proximal Radioulnar Synostosis.

Introduction: Congenital proximal radioulnar synostosis (CPRUS) is a relatively rare forearm deformity that is characterized by a fixed pronated forearm of varying severity. The osseous synostosis between the proximal part of the ulna and the radius can be seen on the X-ray images in most cases. Many researchers have attempted to identify methods to measure the disease severity to guide in the treatment of CPRUS.

Anatomical and clinical study of a new mallet fracture classification method.

Background: Mallet fracture is avulsion of the terminal extensor tendon from the base of the distal phalangeal bone with a bony fragment. This study was performed to evaluate the anatomical characteristics of mallet fractures, investigate a new mallet fracture classification system using anatomical and imaging methods, and discuss the treatment schemes for different types of mallet fracture.

Methods: Sixty-four fresh cadaveric fingers were divided into four groups, and models of different types of mallet fracture with distal interphalangeal joint instability were established by dissecting 25%, 50%, 75%, and 100% of the bilateral collateral ligaments.

Reversed vascularized second metatarsal flap for reconstruction of Manske type IIIB and IV thumb hypoplasia with reduced donor site morbidity.

Background: The predominant method for Manske type IIIB and IV thumb hypoplasia is pollicization. However, for those who are not willing to sacrifice the index finger, a method that could reconstruct a functionally capable and aesthetically acceptable thumb remains desirable. This study aimed to investigate and assess the functional and radiographic outcomes of utilizing a reversed vascularized second metatarsal composite flap for thumb reconstruction as a new alternative.

Contralateral C7 Nerve Root Transfer for Function Recovery in Adults: A Meta-analysis.

Background: Root avulsion to all 5 roots of the brachial plexus is a common presentation and keeps a major reconstructive challenge. The contralateral C7 (CC7) nerve transfer has been used in treating brachial plexus avulsion injury (BPAI) since 1986. However, the effectiveness of the procedure remains a subject of controversy.

Arthroscopic Management of Perilunate Injuries.

The key to successful treatment of perilunate injuries is to achieve early anatomic reduction and maintain the carpal alignment. Open surgery may lead to capsular scarring and joint stiffness. Furthermore, there is increased chance of damage of the already tenuous blood supply to scaphoid and the torn ligaments.

Arthroscopically assisted mini-invasive management of perilunate dislocations.

Unlabelled: Purpose The purpose of this study was to evaluate the outcomes of perilunate dislocations and fracture-dislocations treated with arthroscopically assisted mini-invasive reduction and fixation. Methods Between June 2012 and May 2014, 24 patients who had a dorsal perilunate dislocation or fracture-dislocation were treated with arthroscopically assisted reduction and percutaneous fixation. The mean follow-up was 14.

Isolated ring-little finger metacarpal synostosis: a new classification system and treatment strategy.

Purpose: To devise a comprehensive classification system for isolated ring-little finger metacarpal synostosis that offers a clear guide to specific treatment for each variation of the deformity.

Methods: Based on the experience of 13 cases (20 hands) of isolated ring-little finger metacarpal synostosis, we devised a classification system that takes into account 2 key pathological features of this malformation: the fourth-fifth intermetacarpal angle and the severity of hypoplasia of the fifth ray. In our classification, all patients were divided into 3 types, according to the fourth-fifth intermetacarpal angle, and each type was further subdivided into 2 subtypes according to the length of the fifth ray.

[Segmental schwannomatosis in upper-extremity: 5 cases report and literature review].

Objective: Multiple schwannomas localized in a single body part not crossing the midline constitute a rare variant of neurofibromatosis, segmental schwannomatosis. We report our experience with 5 cases of segmental schwannomatosis of the upper extremity and review the related literature to improve our skills in diagnosis and differentiation.

Methods: Five patients with segmental schwannomatosis received surgical treatment in our department from 2003 to 2012, of whom 4 were female and the other one male.

[Central placement of screw fixation for scaphoid fracture: a biomechanical study].

Objective: To evaluate the effect to the fixation stability of central screw placement during scaphoid fracture surgery.

Methods: We designed oblique osteotomies for 32 identical sawbone scaphoids and fixed each specimen with a cannulated screw. Sawbone scaphoids were divided into 4 groups, according to position of the osteotomy (distal waist portion or proximal waist portion) and the position of the screw (central or eccentric).

Schwannomatosis: a new member of neurofibromatosis family.

Background: Schwannomatosis is a recently recognized peripheral nerve polyneoplasm with clinical characteristics and a genetic background that differ from those of neurofibromatosis 2 (NF2). The diagnostic and treatment criteria of this rare disorder are herein discussed.

Methods: The data of 180 patients who underwent operations for benign schwannomas from 2003 to 2012 in our center were reviewed.

[Diagnosis and surgical treatment of giant cell tumor in hand bone].

Objective: To review the experience with clinical and imaging characteristics of giant cell tumor (GCT) of the hand as well as the surgical outcomes.

Methods: Between 2000 and 2010,16 cases of GCT of the hand were admitted to our department. There were 10 male and 6 female patients with a mean age of 41.

[Clinical study of full-thickness skin graft for reconstruction of completely defect nail unit].

Objective: To explore a reconstruction method for complete nail bed defect caused by various kinds of reasons and to retrospectively analyze the effect of application of free full-thickness skin graft for the whole nail unit repair.

Methods: Between Apr. 2010 and Mar.

[Establishment of a "central zone" in the scaphoid bone by computer analysis of three-dimensional reconstructions of computed tomography imaging and selection of central location of the scaphoid screw].

Objective: To establish an area by generating a surface model located a certain distance inside the scaphoid bone by computer analysis of three-dimensional reconstructions of computed tomography images, and define the central zone of the scaphoid.

Methods: Twenty cases of three-dimensional computed tomography reconstructions of normal scaphoids in a computerized operation planning and simulation system (Vxwork software) were obtained. The scaphoid surface model was shrunk by using the function "erode" in the software until the waist portion became the one third size of the original waist portion of the scaphoid, and then another 1.

[A method of measuring the displacement of the distal radioulnar joint on the three-dimensional CT imaging].

Objectives: To establish a clinical method for measuring the displacement of the distal radioulnar joint (DRUJ) precisely irrespective of ulnar variance, and to derive normal population translation references with palmar and dorsal stress.

Methods: Thirty-seven normal distal forearms were scanned with computed tomography using an apparatus designed by Pirela-Cruz. Each extremity was scanned in two positions: maximal ulnar palmar and dorsal stress.

Management of intra-articular fracture of the fingers via mini external fixator combined with limited internal fixation.

Background: Intra-articular fractures of the fingers are common problems to emergency physicians and hand surgeons. Inappropriate management of these injuries may result in chronic pain, stiffness, deformity, or post traumatic arthritis. Ideal treatment necessitates the restoration of a stable and congruent joint that will allow early mobilization.