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Pelvic fractures are mostly multiple due to the local configuration and the poor muscle-tendinous support in the region. Surgical intervention must be considered in animals with a significant reduction of the pelvic canal, acetabulum fracture, coxo-femoral articulation instability or unilateral or bilateral instability. The aim of this research is to biomechanically test four different models of iliac osteosynthesis. It was used 40 swine hemipelvis, which were submitted to iliac body osteotomy and stabilized with simple hemi-cerclage, double hemi-cerclage, Steinmann pins fixated with methylmethacrylate (MMA) and cortical bone screws fixated with MMA. The compression strength necessary to deform the double hemi-cerclage (2525.2N) and the pins with MMA (2794.9N) did not differ statistically and these models presented higher resistance to the compression strength. Among the tested techniques, the double hemi-cerclage is more resistant for osteosynthesis of the body of the ilium pig's. [ABSTRACT FROM AUTHOR]

Following a brief description of the types of femoroacetabular impingement, the present article describes the protocol of conventional radiology, computed tomography e magnetic resonance imaging for cases of impingement, developed over the last eight years in a partnership with reference orthopedic institutions. Basic radiological propedeutics is described for each of the methods, reviewing the most relevant findings in the assessment of the hip. [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]