Clinical Contrast Study on Improved Longitudinally Section Transverse Suture Operation and Conventional Longitudinally Section Transverse Suture Operation for Chronic Anal Fissure 纵切横缝术与改良纵切横缝术治疗慢性肛裂的临床对比研究
The phenomenon of longitudinal fission seldom occurred during the process of tube plug drawing mill compared with empty-sunken steel tube. The problem which seldom cause transverse fissure in form of partial failure owing to uniform distribution of axial stress in cross section. 与空拔相比较,在短芯棒拔制过程中,纵裂现象一般不会发生,由于钢管轴向应力在横截面上分布均匀,一般也不会出现以局部破坏形式出现的横裂现象。
Test group sphincter longitudinal line transverse joint operation; control group anal fissure excision, incision and the sphincter is not special treatment, open drainage. 试验组行内括约肌纵切横缝术;对照组行肛裂切除术,切口及括约肌不予特殊处理,敞开引流。