The aim of the present study was to investigate the relationship between the caudolateral curvilinear osteophyte (CCO) and canine hip dysplasia (CHD), degenerative joint disease (DJD) and joint laxity as measured using the subluxation index (SI) and Norberg Angle (NA). Three hundred and fifty-three dogs belonging to 8 breeds were evaluated. Following sedation, the hips were evaluated radiographically using the ventro-dorsal hip-extended view and the subluxation view. Radiographic changes examined whether DJD was seen or not. CCO was not considered a sign consistent with DJD but was recorded as an independent finding. The overall prevalence of CHD was detected as 36.11%. DJD and CCO were detected in 16.0% and 34.70% hip joints, respectively. Among hips with CCO, 33.9% had radiographic signs of DJD, however, only 6.5% hips without CCO had DJD. A significantly (P<0.01) positive correlation was determined between CCO and DJD. The mean NA was significantly (P<0.001) higher and the mean SI was significantly lower in dogs without CCO than in dogs with CCO. A significantly (P<0.01) positive correlation was observed between CCO and DJD and CCO and SI, and also a significantly (P<0.01) negative correlation was detected between CCO and NA. This study confirmed the relationship between the CCO and DJD, and reaffirmed the relationship between the SI and DJD. Presently the evidence from this study suggests that by evaluating both CCO and DJD together, the gene pool will be improved to produce better hips if dogs with CCO and greater SI than 0.5 are withheld from the breeding population.
A Three months of age, 4.5 kg, female mixed (cross) breed presented to our clinic with complaint of the left hind leg lameness. In the clinical, radiographic and ultrasonographic examination, ventral hip luxation was diagnosed. Based on the examination findings which indicated the case was chronic, surgical treatment was decided. Hip joint was exposed firstly by craniodorsal approach. Flattened and full acetabulum, fractured greater trochanter, ruptured gluteal muscle attachment and irreparably broken joint capsule were determined. Excision arthroplasty was performed by ventral approach. Greater Trochanter was attached to its position by an L shape Steinman pin using craniodorsal approach. Then, a drill hole was created on the greater trochanter, and a screw was inserted to dorsal acetabular rim. A synthetic suture passed through the hole was tied to the screw in a figure of eight mode. Postoperative antibiotics and anti-inflammatory drugs were used. Physiotherapy such as swimming and massage treatments was proposed following skin sutures removal. In the 4th week control postoperatively, the dog began to use the operated leg effectively despite the moderate quadriceps’ contracture. The contracture was mostly resolved 12th week by continuing physiotherapy.
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