Wu J S, Morris J D, Hogan G R
Arch Phys Med Rehabil. 1985 Nov;66(11):785-8.
We present a case of pure motor ulnar neuropathy with sparing of the hypothenar muscles and a review of 55 published cases of ulnar neuropathy at the wrist in which the clinicoanatomic correlation was clearly delineated. We propose a classification of ulnar neuropathies at the wrist divided into five types based on clinical findings, electrophysiologic studies, and clinicoanatomic correlations. Type I: a mixed motor and sensory neuropathy, occurring just outside or within the proximal end of Guyon's canal. II: a pure sensory neuropathy, where the lesion involves the superficial branch of the ulnar nerve (UN) at the wrist but distal to the branch to the m. palmaris brevis. III: a pure motor neuropathy due to a lesion of the deep branch of the UN just distal to the superficial branch but proximal to the branch to the hypothenars. IV: a pure motor ulnar neuropathy with sparing of hypothenars; this lesion occurs on the deep branch of the UN distal to the origin of the superficial branch and distal to the branch going to the hypothenars. V: a distal motor neuropathy in which the lesion occurs just proximal to the branches going to the first dorsal interosseus and adductor pollicis muscles.
我们报告一例纯运动性尺神经病变且小鱼际肌未受累的病例，并对55例已发表的腕部尺神经病变病例进行综述，其中临床与解剖学的相关性已明确界定。我们基于临床发现、电生理研究以及临床与解剖学的相关性，提出一种腕部尺神经病变的分类方法，分为五种类型。I型：混合性运动和感觉神经病变，发生在Guyon管近端的外侧或内部。II型：纯感觉神经病变，病变累及腕部尺神经（UN）的浅支，但在其至掌短肌分支的远端。III型：纯运动神经病变，由于UN深支在浅支远端但在至小鱼际肌分支近端处发生病变。IV型：纯运动性尺神经病变且小鱼际肌未受累；此病变发生在UN深支在浅支起始部远端且在至小鱼际肌分支远端处。V型：远端运动神经病变，病变发生在至第一背侧骨间肌和拇收肌分支的近端。
