Avaliação radiográfica de cães com displasia coxofemoral tratados pela sinfisiodese púbica / Radiographic evaluation in dogs with hip dysplasia treated by pubic symphysiodesis

Avaliou-se a progressão dos sinais radiográficos de cães com displasia coxofemoral ou potencialmente displásicos tratados pela técnica da sinfisiodese púbica. Foram utilizados 14 cães, seis machos e oito fêmeas, com idades entre quatro e seis meses. Após exame físico, procedeu-se ao exame radiográfico para avaliação da articulação coxofemoral, segundo padrão estabelecido pelo Colégio Brasileiro de Radiologia Veterinária. Três deles foram também avaliados pelo método PennHIP. Pelo histórico clínico, nove (64 por cento) animais foram trazidos por manifestarem sinais de dificuldade locomotora com os membros pélvicos, manifestada especialmente por claudicação unilateral ou bilateral e dificuldade de se levantar. Cinco (36 por cento) cães não tinham qualquer sinal clínico, e em quatro (29 por cento) realizou-se o exame radiográfico como prevenção. O sinal físico mais evidente foi dor à palpação da articulação coxofemoral, e dois (14 por cento) cães apresentaram sinal de Ortolani positivo. Com exceção de um cão que apresentou infecção nos pontos cutâneos, todos os demais evoluíram sem complicações no período pós-operatório. Radiograficamente houve progressão das lesões articulares em seis (43 por cento) animais e oito (57 por cento) mantiveram a classificação inicial. Concluiu-se que cães tratados pela sinfisiodese púbica não apresentam melhora dos sinais radiográficos iniciais.

The radiographic findings in hip dysplastic or potentially hip dysplastic dogs treated by the pubic symphysiodesis were evaluated using 14 dogs - six males and eight females -, aging from four to six-month-old. After physical examination, the hip joint was evaluated by radiographic examination according to pattern established by the Colegio Brasileiro de Radiologia Veterinária. In addition, three dogs were evaluated by PennHIP method. According to medical history, nine (64 percent) dogs were admitted due to signs of locomotor difficulty in pelvic limbs, especially characterized by uni or bilateral lameness and stiffness on rising. Five (36 percent) dogs had no clinical signs. Radiographic examination was performed in four (29 percent) dogs as prevention. The most evident physical sign was pain on manipulation of the hip with Ortolani-positive in two (14 percent) dogs. Except for one dog that presented infection signs in the skin suture, no other postoperative complication was observed. The follow-up radiographic examination revealed progression of the degenerative articular changes in six (43 percent) dogs, and eight (54 percent) had no progression. In conclusion, the dogs treated by pubic symphysiodesis did not have improvement of the preoperative radiographic signs.

Luxação de patela em cães: estudo retrospectivo / Patellar luxation in dogs: a retrospective study

A five-year retrospective study of dogs with patellar luxation was performed. A total of 75 dogs (n=122limbs) were studied: 82.7% (n=62) had medial luxation, 14.6% (n=11) had lateral luxation, and 2.7%(n=2) had both luxations in same stifle joint. Considering the dogs with medial patellar luxation, 6.7%(n=5) were mixed-breed and 76% (n=57) were purebred, with high prevalence in Poodles (n=27; 35.6%),Pinschers (n=13; 17.3%), and Yorkshires (n=4; 5.3%). Of the dogs with lateral patellar luxation, one(1.3%) was mixed-breed and 13.3% were purebred, with high prevalence in Poodles (n=6; 8%) andPinschers (n=2; 2.7%). Regarding the 62 dogs with medial patellar luxation, 20 were unilateral and 42bilateral. Of the 11 dogs with lateral patellar luxation, five were unilateral and six bilateral. Statistically,females were more affected than males by both medial and lateral patellar luxations. The grade II (25;33.3%) of patellar luxation was the most often in medial luxation followed by grades III (20; 26.7%), IV(11; 14.7%), and I (16; 7.9%). The grade II (5; 6.7%) was the most often in lateral luxation followed bygrade I (4; 5.3%), and simultaneously grades III (1.3%) and IV (1.3%). The surgical treatment wasperformed in 64 dogs and the others were submitted a conservative management. It was possible toconclude that among the dogs with patellar luxation evaluated in this study, the most affected were toyand miniature breeds and female dogs with medial patellar luxation.