Evaluation of Combination of Retinacular Imbrication, Trochleoplasty and Tibia Tuberosity Transposition in Dogs with Patellar Luxation

The purpose of this study is to evaluate the results obtained from three surgical techniques (retinacular imbrication, trochleoplasty and tibia tuberosity transposition), which were simultaneously applied for correction of patellar luxation. Eleven, (6 to 108 months) old dogs were presented. The dogs showed, medial patellar luxation (17 stifle joint) and lateral patellar luxation (2 stifle joint) ranging from grade 1 to 4. By palpation and radiographic view, all 11 dogs were diagnosed as patellar luxation. Bilateral patellar luxation was diagnosed in 8 dogs. After operation, the dogs were monitored daily for 7 days and on the 10th, 15th, 20th, 25th and 30th days. Lameness progressively decreased in all dogs around 30 days after surgery, and the patients were showed normal walking. Normal walking was possible in 2 dogs after 4 days, in a dog after 5 days, a dog after 7 days, 3 dogs after 10 days,2 dogs after 15 days, a dog after 25 days and a dog after 30 days (Mean$\pm$S.E: 12.27$\pm$2.57). The recovery took 14 days in dogs with bilateral patellar luxation, and 9 days in dogs with unilateral patellar luxation. Trend of decrease of lameness grade in bilateral patellar corrected dogs were similar to that in unilateral patellar corrected dogs. Swelling, pain and fever disappeared on 7 days. In conclusion, combination of tibial tuberosity transposition, retinacular imbrication and trochleoplasty is appropriate for dogs with patellar luxation.

슬개골 탈구 환견에서 지대 중첩, 활차구 성형 및 경골결절변위술의 복합수술 평가