Reif Ullrich, Probst Curtis W
Department for Small Animal Clinical Sciences, College of Veterinary Medicine-Michigan State University, East Lansing, MI, USA.
Vet Surg. 2003 Jul-Aug;32(4):385-9. doi: 10.1053/jvet.2003.50047.
To investigate tibial plateau angles (TPA) in normal and cranial cruciate ligament (CCL) deficient stifles of Labrador retrievers.
Prospective clinical study.
Eighty-one client-owned purebred Labrador retrievers.
Lateral radiographs of the tibia were obtained from 2 groups of dogs. Group I (42 dogs) had CCL rupture diagnosed by arthrotomy or arthroscopy. Group II (39 dogs) had no history of orthopedic problems, no radiographic evidence of CCL rupture, and dogs were >8 years of age. The tibial axis and the tibial plateau were determined on the radiographs, and the TPA was measured using image measurement software. The TPA measurement results of groups I and II were compared.
Group I (CCL rupture) had a mean TPA (+/-SD) of 23.5 (+/-3.1) degrees, and group II (normal) had a mean TPA (+/-SD) of 23.6 (+/-3.5) degrees. With a P value of.97, no statistical difference was detected between the 2 groups.
No correlation between the magnitude of TPA and CCL rupture was identified in this group of Labrador retrievers.
In Labrador retrievers, TPA should not be used as a predictor of CCL rupture.
研究拉布拉多猎犬正常和颅侧十字韧带（CCL）缺失的 stifles 中的胫骨平台角（TPA）。
前瞻性临床研究。
81 只客户拥有的纯种拉布拉多猎犬。
从两组犬获取胫骨的侧位 X 光片。第一组（42 只犬）通过关节切开术或关节镜检查诊断为 CCL 破裂。第二组（39 只犬）无骨科问题病史，无 CCL 破裂的 X 光证据，且犬龄大于 8 岁。在 X 光片上确定胫骨轴线和胫骨平台，并使用图像测量软件测量 TPA。比较第一组和第二组的 TPA 测量结果。
第一组（CCL 破裂）的平均 TPA（±标准差）为 23.5（±3.1）度，第二组（正常）的平均 TPA（±标准差）为 23.6（±3.5）度。P 值为 0.97，两组之间未检测到统计学差异。
在这组拉布拉多猎犬中，未发现 TPA 大小与 CCL 破裂之间存在相关性。
在拉布拉多猎犬中，TPA 不应用作 CCL 破裂的预测指标。
