Adams W M, Dueland R T, Meinen J, O'Brien R T, Giuliano E, Nordheim E V
Department of Surgical Sciences, School of Veterinary Medicine, University of Wisconsin, Madison 53706, USA.
J Am Anim Hosp Assoc. 1998 Jul-Aug;34(4):339-47. doi: 10.5326/15473317-34-4-339.
Hip joint laxity was evaluated in four breeds (i.e., greyhound, Labrador retriever, Irish setter, hound mixed-breed) of puppies (n=32) by Ortolani's and Bardens' maneuvers, by subjective assessment of radiographs (Orthopedic Foundation for Animals [OFA] method), and by four radiographic measurement indices. Puppies were studied at four, six-to-10, 16-to-18, and 52 weeks of age. The purpose of this study was to compare palpation and radiographic methods of hip laxity detection in puppies for predicting the development of degenerative joint disease (DJD) by one year of age. Twenty-seven (42%) hips developed DJD. Ortolani's method was not a reliable predictor of hip dysplasia at six-to-10 weeks; it was significantly predictive at 16-to-18 weeks but had a high incidence of false negatives. Bardens' and subjective (OFA) assessment methods were not reliable at six-to-10 or 16-to-18 weeks. Radiographic measurements taken with femurs in a neutral position and hips distracted (distraction index [DI] and Norberg angle) and measurements taken with femurs extended in OFA position (Norberg angle) of six- to 10-week-old puppies accurately predicted DJD occurrence by one year of age (p less than 0.01). Distraction index measurement (PennHIP method) was the most accurate in predicting the development of DJD (p less than 0.001). Distraction index radiography in puppies six-to-10 and 16-to-18 weeks of age was the most reliable predictor of hip dysplasia. Norberg angle measurement was more reliable during hip distraction than when hips were measured in the OFA position in 16- to 18-week-old puppies, but had similar reliability in six- to 10-week-old puppies.
通过奥尔托拉尼（Ortolani）手法、巴登斯（Bardens）手法、对X光片的主观评估（动物骨科基金会[OFA]方法）以及四项X光测量指标，对四个品种（即灵缇犬、拉布拉多寻回犬、爱尔兰赛特犬、混种猎犬）的幼犬（n = 32）进行髋关节松弛度评估。在幼犬4周、6至10周、16至18周和52周龄时对其进行研究。本研究的目的是比较幼犬髋关节松弛度检测的触诊和X光检查方法，以预测一岁时退行性关节病（DJD）的发展情况。27个（42%）髋关节出现了DJD。奥尔托拉尼手法在6至10周时不是髋关节发育不良的可靠预测指标；在16至18周时有显著预测性，但假阴性发生率较高。巴登斯手法和主观（OFA）评估方法在6至10周或16至18周时不可靠。对6至10周龄幼犬，在股骨处于中立位且髋关节牵张时进行的X光测量（牵张指数[DI]和诺伯格角）以及在OFA位股骨伸展时进行的测量（诺伯格角）能准确预测一岁时DJD的发生情况（p < 0.01）。牵张指数测量（PennHIP方法）在预测DJD发展方面最为准确（p < 0.001）。6至10周龄和16至18周龄幼犬的牵张指数X光检查是髋关节发育不良最可靠的预测指标。在16至18周龄幼犬中，诺伯格角测量在髋关节牵张时比在OFA位测量时更可靠，但在6至10周龄幼犬中可靠性相似。
