Comparação de três métodos de imagem para análise da evolução da osteoartrite induzida pela ruptura do ligamento cranial em coelhos
Brombini, Giovanna CristinaRahal, Sheila CaneveseSantos, Ivan Felismino Charas dosMamprim, Maria JaquelineTsunemi, MiriamSilva, Jeana Pereira daDoiche, Danuta PulzJoaquim, Jean Guilherme Fernandes
Background: Osteoarthritis is a degenerative joint disease that affects specially cartilage, meniscus, and tendons. Ligaments, muscles, subchondral bone and synovium. This pathology is a common condition limiting the quality of life ofpatients. Imaging modalities have also been used for evaluation the progression of the osteoarthritis, or degenerative processes induced by acute injury. In order to use more accessible imaging modalities for experimentation, this study aimedto compare radiographic, computed tomography, and ultrasound findings in the evaluation of osteoarthritis induced by thecranial cruciate ligament transection model in rabbits.Materials, Methods & Results: Twenty-four male Norfolk rabbits aged approximately 5 months old were used. All rabbits were submitted to cranial cruciate ligament transection of the left stifle and evaluated 45 days after the surgery. Theradiographic findings were subchondral bone sclerosis (33.33%); joint space narrowing (66%); presence of osteophytesat medial femoral condyle (4.16%), lateral femoral condyle (4.16%), medial fabela (20.83%), lateral fabela (8.33%) andsesamoid of the popliteal muscle (4.16%). No osteophytes were seen at medial and lateral tibial condyles. The tomographiccomputed findings were joint space narrowing (62.5%); presence of osteophytes at medial femoral condyle (75%), lateralfemoral condyle (54.16%), medial fabela (66.66%), lateral fabela (37.5%), medial tibial condyle (75%), lateral tibialcondyle (20.83%) and sesamoid of the popliteal muscle (37.5%). The ultrasound findings were synovial hypertrophy(95.83%); effusion in the suprapatellar recess (75%), distal tibial recess (16.66%) and cranial joint space (75%); changes(hyperechogenic foci and heterogeneity) of the lateral meniscus (50%) and medial meniscus (25%); increased thickness ofthe medial condyle (54.16%) and lateral condyle (45.83%); irregularity of the medial condyle (66.66%) and lateral condyle...(AU)
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