Congenital proximal radioulnar synostosis is a rare congenital anomaly that can be extremely disabling, especially when it occurs bilaterally or if there is severe hyperpronation. Currently, osteotomy to achieve a neutral or slightly pronated position is widely accepted for the management of patients who have severe pronation. The present study evaluates the result of two-stage double-level rot...

Isolated fractures of the ulnar shaft are common forearm injuries. Although seemingly benign, they may be complicated by nonunion, radioulnar synostosis, and loss of motion. Unstable fractures are those that are displaced more than 50 percent, angulated more than 10 degrees, or are located in the proximal third of the ulna. Stable fractures are managed well with forearm bracing. Unstable fractu...

Distal radioulnar arthroplasty is an attractive solution for treating various pathological conditions of the distal radioulnar joint because it allows restoration of stability, load transmission and function. The main indications are: radioulnar impingement after partial or complete resection of the distal ulna; and degenerative, inflammatory or post-traumatic arthritis of the distal radioulnar...

Case Description- A 3-month-old, female mixed breed dog was presented to the Veterinary Teaching Hospital of Ferdowsi University with an obvious deformity in its right forelimb. Clinical Findings- - In clinical examination, there was a separation from elbow joint to the end of digits and a long skin cleft between these separated regions was seen. Radiographic examination revealed a wide space b...

Giant cell tumour of the bone (GCT) is a rare locally aggressive primary bone tumour with an incidence of 3% to 5% of all primary bone tumours. The most common location for this tumour is the long bone metaepiphysis especially of the distal femur, proximal tibia, distal radius, and the proximal humerus. Involvement of distal ulna is rare accounting for 0.45% to 3.2%. Considering local aggressiv...

BACKGROUND Isolated radial head dislocation is a rare injury with an unclear pathomechanism, and the treatment is controversial. The purpose of the present study was to investigate the biomechanical contributions of the annular ligament, quadrate ligament, interosseous membrane, and annular ligament reconstructions to proximal radioulnar joint stability. METHODS Five fresh frozen cadaveric up...

Introduction: Congenital proximal radio-ulnar synostosis is a rare congenital anomaly of the upper extremity which severely disabling as it causes severe pronation deformity. So aim this study was to assess efficacy radioulnar derotational osteotomy followed by internal fixation for treatment synostosis.Materials and Method: Between June 2018 April 2020, 11 patients with CRUS who underwent at s...

Congenital proximal radioulnar synostosis (PRUS) is a rare congenital anomaly where the radius and ulna are fused at the proximal portion which can cause the rotation of the forearm to be restricted (Fig.1). Bilateral pronation ankylosis over sixty degrees can restrict the patient’s daily activities. According to the position of the radius head in x-ray, PRUS is classified into three types, pos...

The Sauvé–Kapandji procedure is an established treatment option for distal radioulnar joint dysfunction. We retrospectively analysed 36 patients following between 1997 and 2013. Fifteen were available a follow-up after mean of 13 years (range 6 to 23). Six needed revision surgery because ulnar stump instability. Radiographs sonography performed quantify the instability proximal stump. These sho...