Mazier W P
Dis Colon Rectum. 1985 Jan;28(1):8-10. doi: 10.1007/BF02553897.
The purpose of this paper is to show whether there is a keyhole deformity, its surgical significance, and how often it occurred following surgery for ulcer-in-ano. To do this, a retrospective study, over a 16-year period, of all patients admitted to the Ferguson Clinic with chief complaints of anal incontinence was undertaken. Of this group of patients, seven were identified as having questionable keyhole deformities, three of whom probably had classic defects. There were six females and one male. Only two of the deformities were associated with surgery for ulcer-in-ano. One of these was easily repaired and the other patient had a full rectal prolapse. In addition, of 186 patients undergoing fistula surgery, 77 who had posterior midline transsphincteric fistulas were studied and ten of these patients went on to complete recovery without any permanent problems resulting from severance of the sphincter. It can generally be concluded that, although there is such a defect as the keyhole deformity, it occurs only rarely, especially after surgery for ulcer-in-ano, and that many times it is not associated with anal incontinence.
本文的目的是探讨是否存在锁孔畸形、其手术意义以及肛瘘手术后该畸形的发生频率。为此，我们对弗格森诊所16年间以肛门失禁为主诉入院的所有患者进行了一项回顾性研究。在这群患者中，有7人被确定存在可疑的锁孔畸形，其中3人可能有典型缺陷。患者中有6名女性和1名男性。只有2例畸形与肛瘘手术有关。其中1例易于修复，另1例患者有完全性直肠脱垂。此外，在186例接受肛瘘手术的患者中，对77例后正中经括约肌肛瘘患者进行了研究，其中10例患者完全康复，括约肌切断未导致任何永久性问题。一般可以得出结论，虽然存在锁孔畸形这样的缺陷，但它很少发生，尤其是在肛瘘手术后，而且很多时候它与肛门失禁无关。
