基于CT技术评估髌骨内脱犬骨骼畸形

doi:10.11843/j.issn.0366-6964.2023.02.037

Abstract

Abstract: This experiment was conducted to explore the anatomic differences of medial patellar luxation (MPL) dogs with various degrees symptoms. And comparing the consistency, advantages and disadvantages of CT and X-ray techniques. Thirty-four hindlimbs of small breed canines were divided into normal group, MPL asymptomatic group and MPL symptomatic group according to the symptoms. CT images were used to measure the depth of trochlear groove/patella thickness, length of patellar ligament/patella length, aLDFA, mLDFA, aLPFA, mLPFA, FIA, and analyzing the anatomical structure differences of femur and stifle in each group. In addition, to analyzed two imaging techniques in assessing skeletal malformations by comparing X-ray and CT measurements in a group of dogs. The results showed that there were significant differences in the depth of trochlear groove/patella thickness between normal group (0.47±0.07) and MPL asymptomatic group (0.27±0.14) and MPL symptomatic group (0.35±0.14) (P<0.05), and there were significant differences in aLDFA, mLDFA between normal group[(89.7±4.1)°, (95.6±3.3)°] and symptomatic MPL group[(97.4±6.2)°, (101.2±4.6)°](P<0.05). There were statistical differences in patellar ligament length/patella length, aLPFA, mLPFA and mLDFA between radiographic and CT groups (P<0.05). These results indicated that MPL dogs tend to have superficial trochlear grooches, and symptomatic dogs are more likely to have severe femoral deformities. There is a significant difference in the evaluation of skeletal deformities between X-ray and CT.

Key words: small breed dog, medial patellar luxation, computed tomography, X-ray

CLC Number:

S854.7

QIAO Kangjia, YUAN Zhankui, WANG Jiayao, SHI Lei, WANG Xiao, ZHANG Bin. Evaluation of Skeletal Deformities in Dogs with Medial Patellar Luxation Based on CT[J]. Acta Veterinaria et Zootechnica Sinica, 2023, 54(2): 816-824.

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Evaluation of Skeletal Deformities in Dogs with Medial Patellar Luxation Based on CT

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