Modified Triple Osteotomy as Correction of Pelvic Stenosis in Felines – Experimental Study
Keywords: osteotomy, fracture, pelvis, megacolon, cat
Cats are extremely active and curious animals, especially in their younger years; consequently, the species is subject to a variety of injuries. Fractures in the hip bone region are one of the most common injuries in cats and usually occur due to car accidents or falls. Many of these animals that suffer this injury spend relatively short periods lame and soon return to their activities, with varying degrees of sequelae, often initially asymptomatic, not being diagnosed with the presence of the fracture and the reduction in the diameter of the pelvic canal. After a few months, these animals tend to develop tenesmus, dyschezia, and in the most severe cases, the formation of megacolon secondary to the reduction of the pelvic canal. Techniques to promote the return of excretory routine and improve ambulation have been proposed, but few satisfactory results have been achieved. The objective of this work is to develop a new surgical approach, based on triple osteotomy, that provides widening of the pelvic canal in cats in order to prevent the formation of megacolon and allow natural parturition. Ten feline cadavers, regardless of sex, breed, or age, will be used. The animals will undergo a triple osteotomy of the pelvic bones. The acetabular fragments will be pulled laterally and fixed with a step plate (developed for this purpose). The pelvic bones will be evaluated before and after the procedure (T1 and T2) and measured using computed tomography with 3D reconstruction. The data obtained will be recorded on an evaluation form for statistical analysis. The aim is to obtain satisfactory measurements of pelvic canal widening without compromising anatomical conformation.