胫骨结节前移和半月板松解对前十字韧带损伤的 stifle 在早、中、晚期站立时运动学的影响。（注：“stifle”在兽医解剖学中是指动物膝关节的特定部位，这里直接保留英文以便准确传达原文信息，可根据具体语境进一步解释其准确含义。）

The effect of tibial tuberosity advancement and meniscal release on kinematics of the cranial cruciate ligament-deficient stifle during early, middle, and late stance.

作者信息

Butler J R, Syrcle J A, McLaughlin R M, Elder S H

机构信息

College of Veterinary Medicine, Mississippi State University, Mississippi State, MS 39762, USA.

出版信息

Vet Comp Orthop Traumatol. 2011;24(5):342-9. doi: 10.3415/VCOT-10-08-0122. Epub 2011 Jul 21.

DOI:10.3415/VCOT-10-08-0122

PMID:21792471

Abstract

OBJECTIVES

To evaluate the effect of tibial tuberosity advancement (TTA) and meniscal release on cranial-caudal and axial rotational displacement during early, middle and late stance phases in the canine cranial cruciate ligament- (CCL) deficient stifle.

STUDY DESIGN

In vitro biomechanical study.

METHODS

Eighteen pelvic limbs were evaluated for the effects of TTA on cranial-caudal displacement and axial rotation under a load equivalent to 30% bodyweight, and under the following treatment conditions: normal (intact CCL), CCL deficient, TTA-treated (CCL deficient + TTA), and meniscal release (TTA treated + meniscal release). The limbs were evaluated in the early, middle, and late stance phases using electromagnetic tracking sensors to determine cranial tibial displacement and tibial rotation relative to the femur.

RESULTS

Transection of the CCL resulted in significant cranial tibial displacement during early, middle, and late stance (p < 0.0001) and significant internal rotation during early (p = 0.049) and middle stance (p = 0.0006). Performance of TTA successfully eliminated cranial tibial displacement in early, middle, and late stance (p <0.0001); however, the TTA was unsuccessful in normalizing axial rotation in middle stance (p = 0.030). Meniscal release had no effect on cranial-caudal or rotational displacement when performed in conjunction with the TTA.

CLINICAL SIGNIFICANCE

Tibial tuberosity advancement effectively eliminates cranial tibial displacement during early, middle and late stance; however, TTA failed to provide rotational stability in mid-stance.

摘要

目的

评估胫骨结节前移（TTA）和半月板松解对犬颅侧十字韧带（CCL）损伤 stifle 关节早、中、晚期站立阶段颅尾向和轴向旋转位移的影响。

研究设计

体外生物力学研究。

方法

评估 18 个骨盆肢在相当于 30%体重的负荷下，以及在以下治疗条件下 TTA 对颅尾向位移和轴向旋转的影响：正常（完整 CCL）、CCL 损伤、TTA 治疗（CCL 损伤 + TTA）和半月板松解（TTA 治疗 + 半月板松解）。使用电磁跟踪传感器在早、中、晚期站立阶段评估肢体，以确定胫骨相对于股骨的颅侧位移和胫骨旋转。

结果

CCL 横断导致早、中、晚期站立时胫骨显著的颅侧位移（p < 0.0001），以及早期（p = 0.049）和中期站立时显著的内旋（p = 0.0006）。TTA 手术成功消除了早、中、晚期站立时的胫骨颅侧位移（p <0.0001）；然而，TTA 在中期站立时未能使轴向旋转恢复正常（p = 0.030）。与 TTA 联合进行时，半月板松解对颅尾向或旋转位移没有影响。