Limb development endures as an excellent model for pattern formation in vertebrates. We have identified Gnot1 as a member of a new homeobox gene subfamily. Gnot1 is expressed in a dynamic temporospatial distribution in the developing limb, initially correlating with regions destined to form distal structures and then becoming progressively more restricted to specific regions determined to give ...

We report the case of a 21-year-old man who injured his right hand in a fall from his motorbike, causing a trans-scaphoid perilunate fracture-dislocation associated with vertical fracture of the pyramid (A and B). On day 2, patient underwent a bloody reduction (C) of disorganized carpal bones with osteosynthesis of scaphoid and pyramid (D). Peri-lunate fracture-dislocation is a rare injury cons...

Introduction: Scapholunate ligament injury is rare in children. Most of the cases occur with concomitant distal radius fractures. Complete scapholunate disruption may present with long term pain and disability. Case Report: We present a case of scapholunate injury in a youngest patient reported in literature with this injury. The senior author managed the injury with a modified extra-osseous re...

Recently a new theory about the cause of ulnar deviation of the fingers in the rheumatoid hand has been suggested, in which the position of the wrist plays an important role (Shapiro 1968). Shapiro has suggested that ulnar phalangeal drift is part of the zigzag pattern which occurs when the carpus-metacarpus acts as an intercalated bone as in the biarticular system of Landsmeer (Landsmeer 1961)...

Four species of palicoid crabs, Neopalicus jukesii (White, 1847) and Rectopalicus ampullatus Castro, 2000 of the family Palicidae, and Crossotonotus spinipes (De Man, 1888) and a new species of Pleurophricus A. Milne-Edwards, 1873 of the family Crossotonotidae, are recorded from the Ogasawara Islands, Japan. Diagnostics for the new species are the protruded bilobed front, six subacute lobate te...

We have assessed the value of using a simple apparatus,the Carpal Box, in patients with suspected scaphoid fracture, to produce elongated and magnified radiographs of the carpus. The interobserver agreement between 60 observers of standard scaphoid radiographs and longitudinal and transverse Carpal Box radiographs (X-CB) was compared in 11 patients. Three-phase bone scanning was used as a compa...

Madelung's deformity results from a growth defect in the palmar and ulnar region of the distal radius. It presents as an excessively inclined radial joint surface, inducing "spontaneous progressive palmar subluxation of the wrist". The principle of reverse wedge osteotomy (RWO) consists in the reorientation of the radial joint surface by taking a circumferential bone wedge, the base of which is...

We carried out arthrodesis of the radiolunate joint in 46 wrists (38 patients) for pain and ulnar translation of the carpus because of rheumatoid (42) or psoriatic arthritis (4). At follow-up, three patients had died and in three (1 bilateral) an additional midcarpal arthrodesis had been undertaken. The remaining 32 patients (39 wrists) were evaluated after a mean of five years. The clinical re...

Carpal malalignments in malunion of distal radius fracture are considered as an adaptive response of the carpus to loss of normal architecture of the distal radius. This condition leads to mechanical overload, ligament attenuation and progressive dynamic instability around the wrist joint. Radial corrective osteotomy is suggested as a treatment option of carpal malalignment after distal radius ...

INTRODUCTION Osteomyelitis of the radius resulting in the radial clubhand is a very rare condition and few studies have been published about its prognosis and treatment. CASE OUTLINE This is a case report of hematogenous osteomyelitis of the radius with a complete loss of the radius leaving only the distal radial metaphysis to carry the carpus. In order to achieve best functional results, fou...