In five children, six forearms with a fixed pronation deformity secondary to congenital radioulnar synostosis were treated by a derotation osteotomy of the distal radius and the midshaft of the ulna. There were three boys and two girls with a mean age of 4.9 years (3.5 to 8.25) who were followed up for a mean of 29 months (18 to 43). The position of the forearm was improved from a mean pronatio...

Radioulnar synostosis is a rare complication of forearm fractures. The formation of a bony bridge induces functional disability due to limitation of the pronosupination. Although the etiology of posttraumatic synostosis is unknown, it seems that the incidence is higher in patients who have suffered a concomitant neurological or burn trauma, and extensive soft tissue injury, mainly due to high-e...

Rheumatoid arthritis commonly affects the distal radioulnar joint (DRUJ). This can result in pain, instability, or tendon rupture. The goals of surgical reconstruction of the DRUJ are to relieve pain, stabilize the joint, and prevent tendon rupture. We review many of the previously described procedures and report our experience with distal ulna excision and soft tissue reconstruction with a dis...

Triangular fibrocartilage complex (TFCC) tears are a common source of ulnar sided wrist pain. Originally described by Palmer, in 1981, as a complex of several structures, our understanding of the anatomy and the function of the TFCC has been refined by histologic studies. The TFCC plays an important role in load bearing across the wrist as well as in distal radioulnar joint (DRUJ) stabilization...

Malunion of a distal radius fracture may result in functional limitation and pain. Reestablishing the geometry of the metaphysis and the alignment of the articular surface, restoring the relationship at the distal radioulnar joint, and respecting the soft-tissue envelope are elements of a successful reconstruction. The author describes a systematic approach to evaluation and treatment, includin...

In the diagnosis of ulnar wrist pain, physical examinations including provacative tests are primary elements in identifying the site and nature of ulnar wrist pain. Imagings techniques are helpful for diagnosing occult fractures and distal radioulnar subluxation, but unsatisfactory for diagnosing ulnocarpal impaction syndrome, tears of the triangular fibrocartilage complex and lunotriquetral li...

Introduction When a distal radio-ulnar joint (DRUJ) causes refractory pain and there is extensive damage to the joint cartilage, the only available surgical option is to sacrifice the joint by complete resection of the distal ulna (popularized by Darrach), by partial resection with or without interposition (e.g. Bowers’ hemiresection or Watson’s ‘matched ulna’) or by fusion of the radius and di...

background and aims. with the introduction of cone beam computed tomography (cbct) in dentistry, a question has been raised whether the technique significantly increases the diagnostic accuracy in comparison with other techniques or not. therefore, the present study was undertaken to assess the accuracy of cbct modality in detecting proximal carious lesions as compared to conventional periapica...

background: colorectal cancer (crc) is the second cause of cancer-related deaths worldwide. there have been several studies reporting the proximal tumor shift, especially in western countries. in the present study, we investigated the clinicopathologic and anatomical distributions of colorectal tumors in iranian crc patients. materials and methods: in this retrospective cohort study,258 patient...