PDF(Pubmed)
Abstract：
Perineal urethrostomy in cats is indicated for urethral pathologies located distal to the bulbourethral glands. The description of the bulbourethral glands as the cranial landmark when performing a PU is based on the increased urethral diameter at this location, rather than on an anatomical limitation. This suggests that urethral pathologies cranial to the bulbourethral glands could potentially be treated with PU. At present, the extent to which the pelvic urethra can be mobilized is unknown. Characterization and quantification of the effect of PU on the pelvic urethra is required prior to attempting to define the location of the pelvic urethra, cranial to the bulbourethral glands, which can be exteriorized when performing a PU. Our aim was to characterize and quantify the effect of performing a PU on the location and length of the pelvic urethra.
METHODS: Ten male feline cadavers were used, and four markers were placed on the pelvic urethra via a ventral approach to the peritoneal and pelvic cavities. Two orthogonal radiographic views were acquired prior and subsequent to performing a PU. The distance of each marker to a predefined landmark/origin and the distances of the markers relative to each other were measured on all radiographs.
RESULTS: PU resulted in significant caudal translation of the markers relative to the predefined landmark on all radiographic views; however, PU did not result in a significant change in the distances between the markers.
CONCLUSIONS: Performing a PU results in caudal translation and minimal stretching of the mobilized pelvic urethra.
METHODS: Ten male feline cadavers were used, and four markers were placed on the pelvic urethra via a ventral approach to the peritoneal and pelvic cavities. Two orthogonal radiographic views were acquired prior and subsequent to performing a PU. The distance of each marker to a predefined landmark/origin and the distances of the markers relative to each other were measured on all radiographs.
RESULTS: PU resulted in significant caudal translation of the markers relative to the predefined landmark on all radiographic views; however, PU did not result in a significant change in the distances between the markers.
CONCLUSIONS: Performing a PU results in caudal translation and minimal stretching of the mobilized pelvic urethra.
摘要：
猫的会阴尿道造口术适用于位于尿道球腺远端的尿道病变。进行PU时，将尿道球腺作为颅骨标志的描述是基于该位置的尿道直径增加，而不是在解剖学上的限制。这表明可以用PU治疗颅骨至尿道球腺的尿道病变。目前,骨盆尿道的动员程度尚不清楚。在试图确定骨盆尿道的位置之前，需要表征和量化PU对骨盆尿道的影响。头颅到尿道球腺，在执行PU时可以将其外部化。我们的目的是表征和量化执行PU对骨盆尿道的位置和长度的影响。
方法：使用了10具雄性猫科动物尸体，通过腹膜和盆腔的腹侧入路在盆腔尿道上放置了四个标记物。在执行PU之前和之后获取两个正交射线照相视图。在所有射线照片上测量每个标记物到预定界标/原点的距离以及标记物相对于彼此的距离。
结果：PU导致标记相对于所有射线照相视图上的预定界标的明显尾端平移；但是，PU没有导致标记之间的距离的显著变化。
结论：进行PU可导致尾部平移和动员的骨盆尿道的最小拉伸。
方法：使用了10具雄性猫科动物尸体，通过腹膜和盆腔的腹侧入路在盆腔尿道上放置了四个标记物。在执行PU之前和之后获取两个正交射线照相视图。在所有射线照片上测量每个标记物到预定界标/原点的距离以及标记物相对于彼此的距离。
结果：PU导致标记相对于所有射线照相视图上的预定界标的明显尾端平移；但是，PU没有导致标记之间的距离的显著变化。
结论：进行PU可导致尾部平移和动员的骨盆尿道的最小拉伸。
