Malloy T R, Wein A J, Carpiniello V L
Urology. 1982 Jun;19(6):602-5. doi: 10.1016/0090-4295(82)90008-5.
From June, 1974, until January, 1977, eleven AMS 721 genitourinary sphincters were installed in 9 men and 2 females. Long term success was achieved in 2 men. Failures were encountered in 9 patients (82 per cent) with urethral erosions (3 patients), infection (1 patient), and mechanical failure (5 patients) accounting for the complications necessitating prosthetic removal. From January, 1979, until May, 1981, 15 males had the revised AMS model AS 742 (b) or (c) sphincter installed. Long term continence was achieved in 9 patients (60 per cent). Urethral erosion in 4 patients (27 per cent) and infection of the prosthesis in 2 men (13 per cent) accounted for fathers. An improved surgical technique involving the installation of the device in a defunctionalized state with secondary activation is anticipated to improve future results.
从1974年6月至1977年1月，9名男性和2名女性安装了11个AMS 721型泌尿生殖括约肌。2名男性取得了长期成功。9名患者（82%）出现失败，其中尿道糜烂（3例）、感染（1例）和机械故障（5例）导致了需要移除假体的并发症。从1979年1月至1981年5月，15名男性安装了改良后的AMS AS 742（b）或（c）型括约肌。9名患者（60%）实现了长期控尿。4名患者（27%）出现尿道糜烂，2名男性（13%）出现假体感染。预计一种改进的手术技术，即将装置在去功能状态下安装并二次激活，将改善未来的效果。
