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Vezzoni A.,Clinica Veterinaria Vezzoni srl
Veterinary and Comparative Orthopaedics and Traumatology | Year: 2016

This report describes the diagnosis and treatment of a growth plate disturbance resembling canine metaphyseal osteopathy in two, two-month-old, sibling, intact, female Domestic Shorthair cats. Clinical signs and radiographic lesions resolved spontaneously after three months. Follow-up examination at six months of age showed complete recovery and no radiographic abnormalities. © Schattauer 2016. Source

Boiocchi S.,Clinica Veterinaria Vezzoni srl | Vezzoni L.,Clinica Veterinaria Vezzoni srl | Vezzoni A.,Clinica Veterinaria Vezzoni srl | Bronzo V.,University of Milan | Rossi F.,Clinica Veterinaria dellOrologio
Veterinary and Comparative Orthopaedics and Traumatology | Year: 2013

Objectives: The hypothesis of this study was that juvenile pubic symphysiodesis (JPS) results in pelvic changes that can be identified radiographically in adult dogs. Methods: The medical records at the Clinica Veterinaria Vezzoni were searched for standard ventro-dorsal views of the pelvis of adult Labrador and Golden Retrievers that had undergone JPS or had not undergone surgery. The objective assessment of radiographs included the analysis of various pelvic measurements. Subjective evaluation of radiographs was undertaken by 18 specialists and 21 general practitioners and was based on five criteria relating to 1) the acet-abular fossae, 2) the pubic symphysis, 3) the margin of the cranial pubic area, 4) the pubic rami, and 5) the obturator foramen. Results: The radiographs of 42 Labrador Retrievers and 16 Golden Retrievers were evaluated. The most useful criteria were the radiographic measurement of the shape of the obturator foramen and two different ratios of length to width of the pubic rami; these values were significantly smaller in dogs after JPS. The pelvic canal width was the same in both groups. All objective measurements were repeatable within and between evaluators. The most reliable subjective criterion was number 4, followed by number 5 in Golden Retrievers and by 2 in Labrador Retrievers. Conclusion: Our objective and subjective evaluations were simple and yielded useful and repeatable results. There was no significant difference between general practitioners and specialists with regard to subjective evaluation, which indicates that these evaluation criteria can be used by small animal clinicians after minimal training. © Schattauer 2013. Source

Vezzoni A.,Clinica Veterinaria Vezzoni srl | Boiocchi S.,Clinica Veterinaria Vezzoni srl | Vezzoni L.,Clinica Veterinaria Vezzoni srl | Vanelli A.B.,Clinica Veterinaria Vezzoni srl | Bronzo V.,University of Milan
Veterinary and Comparative Orthopaedics and Traumatology | Year: 2010

The aim of this study was to evaluate the feasibility of the double pelvic osteotomy (DPO) (osteotomy of the ilium and pubis) to treat clinical cases of hip dyplasia in young dogs instead of performing a triple pelvic osteotomy (TPO) (osteotomy of the ilium, pubis, and ischium). Candidates for DPO were 4.5- to nine-month-old dogs with coxofemoral joint subluxation and laxity, indicative of susceptibility to future development of severe hip dysplasia. The angle of reduction (AR) and angle of subluxation (AS) with Ortolani's sign, Norberg angle (NA), percentage of femoral head (PC) covered by the acetabulum, and the pelvic diameters and their relationships were measured clinically and radiographically before and after surgery. The surgical technique was similar to the TPO technique, but excluded ischiatic osteotomy. A DPO was carried out in 53 joints of 34 dogs; AR and AS values immediately postoperatively and at the oneand two-month follow-up examinations were significantly lower than the preoperative values (p <0.01). The complications en-countered were mainly represented by implant failure (3.5%), partial plate pull-out (9.4%), and incomplete fracture of the ischia table (7.5%). Changes in PC and NA values obtained immediately after surgery and at the first and second follow-up examinations were significantly greater (p <0.01 both) than values obtained before surgery. Sufficient acetabular ventroversion was achieved to counteract joint subluxation and the modifications of AR and AS. The NA and PC direct postoperative values reflected a significant improvement in the dorsal acetabular coverage. Clinical relevance: Restoration of normal joint congruity (PC from 50 to 72%) and maintenance of the pelvic geometry without pelvic narrowing were the most intriguing features of DPO. The complications observed were greatly reduced when using dedicated DPO plates. Based on our experience, the morbidity after unilateral and bilateral DPO was lower than after TPO because elimination of the ischiatic osteotomy allowed for increased stability of the pelvis. The surgical technique of DPO was a little more demanding than TPO because of the difficulty in handling and rotating the acetabular iliac segment, but this difficulty was offset by elimination of ischial osteotomy. © Schattauer 2010. Source

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