Rayan G M
Baptist Medical Center of Oklahoma, Oklahoma City.
J Okla State Med Assoc. 1994 Dec;87(12):546-50.
Hypoplastic thumb is a short, underdeveloped thumb with deficient or absent intrinsic muscles with or without deficient extrinsic musculotendinous structures. Thumb hypoplasia is a common congenital abnormality with five types of increasing severity. This abnormality may be associated with local musculoskeletal deficiencies or systemic diseases and syndromes. In severe cases, basic hand function, including pinch and grasp, may be adversely affected. A variety of operative reconstructive procedures can provide thumb stability, and improve motor control and overall hand function.
发育不全拇指是一种短小、发育不良的拇指，其内在肌肉缺失或发育不全，伴或不伴有外在肌肉肌腱结构缺陷。拇指发育不全是一种常见的先天性异常，有五种严重程度递增的类型。这种异常可能与局部肌肉骨骼缺陷或全身性疾病及综合征有关。在严重情况下，包括捏和抓握在内的基本手部功能可能会受到不利影响。多种手术重建方法可提供拇指稳定性，并改善运动控制和整体手部功能。
