Baumans V, Schoorl M, Dijkstra G, Wensing C J
Laboratory of Animal Science, State University Utrecht, The Netherlands.
Int J Androl. 1988 Apr;11(2):115-22. doi: 10.1111/j.1365-2605.1988.tb00987.x.
The poor fertility after orchiopexy can be due either to the previously prolonged high abdominal temperature, to surgical trauma or to congenitally malformed or dissociated testis and epididymis. In order to test whether manipulation of the testis and the spermatic cord in juvenile dogs causes damage to the seminiferous epithelium after puberty, orchiopexy was performed stepwise in 31 normal young dogs. In four dogs, in which traction to the proper testis ligament or biopsy was carried out, a significantly lower relative testis weight was found, together with impaired differentiation of the seminiferous epithelium. From these experiments it was clear that surgical procedures in the inguinal and scrotal region do not necessarily affect the development of the seminiferous epithelium in the dog. However, trauma to the vaginal tunic seemed to be crucial, causing damage to the differentiation of the seminiferous epithelium.
睾丸固定术后生育能力低下可能是由于先前长期处于较高的腹部温度、手术创伤，或是先天性睾丸及附睾畸形或分离。为了检测幼年犬睾丸和精索的操作是否会在青春期后对生精上皮造成损伤，对31只正常幼犬逐步进行了睾丸固定术。在4只对睾丸固有韧带进行牵引或活检的犬中，发现睾丸相对重量显著降低，同时生精上皮分化受损。从这些实验可以清楚地看出，腹股沟和阴囊区域的手术操作不一定会影响犬生精上皮的发育。然而，鞘膜的创伤似乎至关重要，会导致生精上皮分化受损。
