Myanmarorchestia Hou, gen. n. with two new species is described from terrestrial habitats in Myanmar. This new genus is characterised by 4-dentate lacinia on left mandible, simple gnathopod I in both sexes, weakly chelate gnathopod II in male, simplidactylate pereopods and complex and lobed gills. Myanmarorchestia peterjaegeri Hou, sp. n. closely resembles M. seabri Hou, sp. n. in gnathopod II ...

There are a variety of magnetic resonance (MR) appearances of structures in the carpus and proximal metacarpal region in non-lame horses. An in-depth knowledge of MR anatomy and normal variants is essential for accurate interpretation of clinical MR examinations, and it also helps in the understanding of radiographic and ultrasonographic findings. Authors’ addresses: Equine Diagnostic Centre, U...

Radiocarpal fracture-dislocations are uncommon injuries, comprising a spectrum of trauma to the capsuloligamentous complex and osseous structures of the radiocarpal joint along with the adjacent structures. Management guidelines are derived from limited case series and expert opinions. An understanding of the relevant anatomy suggests that restoration of an anatomically reduced joint in conjunc...

A traumatic avulsion of the flexor tendon at the musculotendinous junction in nonamputated digits is a very rare injury. We present a 14-year-old girl who sustained a longitudinal, tensile, injurious force directly to the flexor pollicis longus tendon after an open thenar injury resulting in its avulsion at the musculotendinous junction. In an effort to minimize soft-tissue damage and preserve ...

Ulnar dimelia (mirror deformity) is a rare dysontogenetic deformity of the upper limb caused by an embryonic disturbance of the developing limb bud. It is characterized by two ulnae, the duplication of the ulnar halves of the carpus, metacarpals and phalanges, with the absence of the radius and thumb. It is commonly unilateral. This anomaly may be associated with shoulder dislocation, fibular d...

2 Department of Orthopaedic Surgery, Massachusetts General Hospital, Boston, MA Perilunate injuries result from high-energy trauma to the carpus. Early diagnosis and treatment is essential to optimizing outcome. Initial management should consist of closed reduction of any carpal malalignment. Subsequent open reduction with percutaneous pinning or internal screw fixation and soft tissue repair i...

Articular injuries in athletic horses are associated with large forces from ground impact and from muscular contraction. To accurately and noninvasively predict muscle and joint contact forces, a detailed model of musculoskeletal geometry and muscle architecture is required. Moreover, muscle architectural data can increase our understanding of the relationship between muscle structure and funct...

Returning behavior was tested before and after frontomedial surgery. In this test rats had to go for food and return to the starting place by the same route in an elevated T maze. The correct return response required the immediate retention of the turn performed on the way to food. Subtotal, although considerably large lesions of the frontomedial cortex, had no effect on performance. Lesions co...