Methods: In emergency reconstruction of avulsion defect of thumb by transferring the second toe, the ulnar digital proper nerve of the forefinger, the extensor indicis proprius were transferred for restoration of sensation and motion. 方法:分别采用示指尺侧指神经、示指或环指浅屈肌腱、示指固有伸肌腱移位,第二足趾游离移植急诊再造拇指。