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ABSTRACT: Canine hip dysplasia (CHD) is a common condition observed in the surgical clinics for small animals. Among the surgical techniques for management of CHD, triple pelvic osteotomy and sacroiliac wedge promote acetabular lateral axial rotation (ventroversion), increasing acetabular coverage and joint stability. The present study aimed to evaluate radiographically, by measuring the Norberg angle (NA) and the acetabular coverage percentage (ACP), the acetabular ventroversion induced by the sacroiliac wedge technique, with or without pelvic osteotomies; we also checked the feasibility of wedges made of polyamide with an angulation of 20° and 30°. The software used to measure NA and ACP was AutoCAD® 2009. Pelves from 10 canine corpses were evaluated radiographically at four time-points: M0 (Control Group), M1 (wedges of 20° and 30°), M2 and M3 (wedges associated with bilateral pubis and ischium osteotomies, respectively). There was no significant increase in the acetabular ventroversion at M1, M2, and M3. The polyamide sacroiliac wedge technique proved to be feasible, stable, and easy to apply. Further, the software proved to be efficient and easy to use for NA and ACP measurements. In the present study, even in the cases of non-dysplasic adult canine corpses, it was concluded that the sacroiliac wedge technique does not require to be accompanied by pubis and ischial osteotomies because they did not significantly increase the NA and ACP.

Hip dysplasia is one of the most common joint disorders in dogs. Acetabular denervation is a surgical technique performed in dogs with hip dysplasia associated to pain in this joint. The aim of this paper was compare the results of two different approaches, lateral and ventral performed in 24 dogs to access the hip joint. We evaluated immediately before surgery and after 14, 30 and 60 days postoperatively the following aspects: lameness, muscle atrophy, crackling of the joint, pain and tendency to dislocation of the femoral head in the Ortolani maneuver. Quality of life was evaluated after 60 up to 360 days postoperatively. There were no significant statistically difference between ventral or lateral surgery approaches based on the parameters evaluated. There was a good improvement in lameness from 60 days after surgery either in quality of life in the owner's perspective. We concluded that both surgical approaches are feasible for acetabular denervation in dogs with significant decrease in lameness after 60 days and increased quality of life at 60 up to 360 days postoperatively. [ABSTRACT FROM AUTHOR]

Canine hip dysplasia is a common painfull orthopedic disorder, resulting from articular instability and causing degenerative joint disease. Several treatment options are available, including capsular denervation. This study describes the results of percutaneous capsular denervation in 92 dogs diagnosed with hip dysplasia. Lameness (LAM) and pain on palpation (PN) were determined using a visual analogue scale (VAS), muscle girth (MG) and maximum degree of passive extension (PME) and flexion (PMF) of the hip were determined pre-operatively and at days 7, 15, 30, 180 and 360 postoperatively. Dogs were anesthetized and 4.5mm Steinman pin was used to percutaneously scrap the craniodorsal border of the acetabulum. LAM and PN were analyzed by means of ANOVA followed by a Friedman test, whereas MG, PME and PMF were analyzed by means of ANOVA followed by a Tukey test. There was a significant decrease in LAM and PN 15 days following surgery. PME presented a significant increase after 30 days of surgery. It is concluded that the percutaneous hip denervation is an effective method in restoring function in the dysplastic hip. [ABSTRACT FROM AUTHOR]