Iwata M, Hirano A
Ann Neurol. 1978 Sep;4(3):245-9. doi: 10.1002/ana.410040309.
Sacral anterior horns were examined with special reference to the Onufrowicz nucleus in 3 patients with Werdnig-Hoffman disease, 2 with healed anterior poliomyelitis, and 1 who had undergone amputation of both legs above the knee. None of these patients showed symptoms of either urethral or anal sphincter disturbances. The Onufrowicz nucleus of the second sacral anterior horn appeared normal in all the patients examined, though the lateral portion of that horn and the medial nuclear group of the third sacral segment were frequently involved. These findings support the view that the Onufrowicz nucleus may be innervating the external sphincter muscle of the urethra and the anus.
对3例患有韦尼克-霍夫曼病、2例患有陈旧性脊髓灰质炎且已治愈以及1例在膝关节以上双腿截肢的患者的骶前角进行了检查，特别关注了奥努夫罗维茨核。这些患者均未表现出尿道或肛门括约肌功能障碍的症状。在所有接受检查的患者中，第二骶前角的奥努夫罗维茨核看起来正常，尽管该角的外侧部分和第三骶节段的内侧核群经常受累。这些发现支持了奥努夫罗维茨核可能支配尿道和肛门外括约肌的观点。
