A new species of callianassid shrimp genus Nihonotrypaea Manning & Tamaki, 1998 (Crustacea: Decapoda: Axiidea: Callianassidae) is described from the Peter the Great Bay, Primorye, Russian coast of the Sea of Japan. The species clearly differs from other representatives of the genus by unique armature of ventral margin of merus and different form of carpus of major cheliped in males and yellow-g...

Carpal instability is often related to ruptured or lax carpal ligaments. Wrist cineradiography has been shown to be a good modality for diagnosing carpal instability. To create uniformity in obtaining and assessing wrist cineradiography, a wrist cineradiography protocol is desirable. This protocol will focus on wrist cineradiography for diagnosing carpal instabilities. It describes the patholog...

Samples collected from the Antarctic (ANDEEP/2002) and Mid-Pacific (BIONOD/2012) Oceans allowed analyses of several specimens of the family Neotanaidae. From these surveys two new species are described: Neotanais bicornutus and Venusticrus thor. The new material led to a re-diagnosis of Venusticrus, and N. rotermundiae is now assigned to this genus. The male of N. bicornutus shares a number of ...

Suday, Sptem er 5, 2016 CONCLUSION: Dorsal bridge plate fixation of distal radius fractures restores preoperative physiologic measures of the radius, ulna, and carpus. No significant carpal translocation occurred during distal bridge plate fixation to the 2nd or 3rd metacarpal bone. While additional studies are needed, fixation to the 2nd metacarpal is preferred as it does not translocate the w...

We describe a case of osteosarcoma of the scaphoid bone, which to our knowledge is only the second reported case of osteosarcoma in the carpus. A 38-year-old man complained of intense pain in the right wrist and had curettage and a bone graft for a lesion in the scaphoid. Histological examination showed this to be an osteosarcoma. Below-elbow amputation was performed and adjuvant chemotherapy g...

The management of pain, stiffness and weakness of the wrist following unsuccessful conservative treatment of fractures of the scaphoid or of Kienb#{246}ck’s disease is a difficult problem. The result of excision of the affected bone is unpredictable and arthrodesis is a major procedure which leaves a disability. To avoid these disadvantages Stamm (1944) suggested arthroplasty of the wrist by ex...

The human carpal bones, as in most mammals, are usually eight in number, and develop from a common embryological origin by the eighth week of intrauterine life 1. Failure of separation during this development leads to the phenomenon of carpal coalition. The prevalence of the anomaly is uncertain as it is usually asymptomatic 2. Individual cases have been reported which have presented as unusual...

Osteoblastoma is a rather uncommon tumor, especially when located in the wrist (and hand). Its diagnosis therefore appears to be problematic. We describe a case of osteoblastoma of the scaphoid bone and its management. To our knowledge, this is the fourth case of osteoblatoma of the carpus reported in the literature. Proximal row carpectomy was chosen because of the aggressive nature of the tum...

Osteoid osteoma is a benign bone tumor, which represents approximately 10% of all benign bone tumors. When localized to the carpus, osteoid osteomas are most often seen in the scaphoid and capitate. Rarely, these tumors can also be observed in the trapezium. Given the infrequency with which osteomas are located in the trapezium and often nonspecific presenting symptoms, diagnosis of this tumor ...