منابع مشابه
Carpal coalition: a rare coincidence with hand deficiencies.
Three cases in which congenital carpal fusion was associated with formation deficiencies of the hand are presented. In two patients with a lunate-triquetral and a capitate-hamate-trapezoid coalition, respectively, an ulnar deficient hand was also diagnosed. A subdivision of the first type of ulnar club hand deformities is proposed. Other skeletal anomalies included duplication of a phalanx and ...
متن کاملTrans-scaphoid Trans-lunotriquetral Perilunate Dislocation in a Patient with a Carpal Coalition
SUMMARY Congenital carpal coalitions are rare conditions that arise from a failure or an incomplete cavitation of a common cartilaginous precursor of the carpal bones between the fourth and eighth week of intrauterine life. The incidence of coalitions has been estimated to occur in about 0.1% of the population and up to 1.6% in people of African descent. This study reports a case of trans-scaph...
متن کاملBilateral pisiform-hamate coalition causing carpal tunnel syndrome and tendon attrition. A case report.
Congenital coalition of pisiform and hamate is rare and had been considered asymptomatic in the first reports. The authors report a case of bilateral pisiform-hamate coalition in a young patient, causing symptoms of median nerve compression in the carpal tunnel and attritional changes on digital flexor tendons. This type of coalition had not previously been related to such symptoms. Additionall...
متن کاملDistributing Coalition Value Calculations to Coalition Members
Within characteristic function games, agents have the option of joining one of many different coalitions, based on the utility value of each candidate coalition. However, determining this utility value can be computationally complex since the number of coalitions increases exponentially with the number of agents available. Various approaches have been proposed that mediate this problem by distr...
متن کاملPotential, coalition formation and coalition structure∗
The present paper studies a new potential function of a cooperative game with a coalition structure. When define a marginal contribution of each player, a notion of a coalition formation by Hart and Kurz (1983) is considered. Our potential is a real-valued function in contrast to Winter (1992)’s one which is vector-valued function whose dimension is the number of elements in the coalition struc...
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ژورنال
عنوان ژورنال: HAND
سال: 2013
ISSN: 1558-9447,1558-9455
DOI: 10.1007/s11552-013-9498-5