Anatomic and Biomechanical Investigation on Anterior Cruciate Ligament: A Cadaveric Study
试验速览
- 阶段
- 不适用
- 入组人数
- 9
- 试验地点
- 1
- 主要终点
- simulated pivot-shift test
研究概览
简要总结
The present study was aimed to investigate the kinematics differences between round-tunnel (ROT) and flat-tunnel (FLT) techniques and compare the influence to the anterior root of lateral meniscus (ARLM ) in anterior cruciate ligament (ACL) reconstruction when using hamstring graft.
详细描述
Nine matched pairs of fresh-frozen cadaveric knees were evaluated for the kinematics of intact, ACL-sectioned, and either ROT or FLT reconstructed knees. The graft bundles for FLT technique were separately tensioned. A 6 degrees of freedom robotic system was used to assess knee laxity: (1) 134-N anterior tibial load at 0°, 15°, 30°, 60°, and 90°of knee flexion. (2) 10-Nm of valgus torque followed by 5-Nm of internal rotation torque simulates a pivot-shift test at 15°, 30°. (3) 5-Nm internal and external rotation torques at 0°, 15°, 30°, 60°, and 90°. (4) 10-Nm varus and valgus torques at 15°, 30°. Coverage of ACL tibial footprint and areas of ARLM attachment before and after reaming were measured using three-dimensional isotropic MRI scanning.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Double (Investigator, Outcomes Assessor)
入排标准
- 年龄范围
- 18 Years 至 70 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •intact knee with no previous injures
排除标准
- •those with ligamentous injury or a limited range of motion
结局指标
主要结局
simulated pivot-shift test
时间窗: within 1 hour after surgery
10-Nm of valgus torque followed by 5-Nm of internal rotation torque simulates a pivot-shift test at 15°, 30° of knee flexion
simulated KT-2000 arthrometer
时间窗: within 1 hour after surgery
134-N anterior tibial load simulates a KT-2000 arthrometer at 0°, 15°, 30°, 60°, and 90°of knee flexion
internal and external rotation
时间窗: within 1 hour after surgery
5-Nm internal and external rotation torques at 0°, 15°, 30°, 60°, and 90° of knee flexion
varus and valgus
时间窗: within 1 hour after surgery
10-Nm varus and valgus torques at 15°, 30°of knee flexion
average percentage of ACL tibial footprint coverage
时间窗: within 1 hour after surgery
Coverage of ACL tibial footprint and areas of ARLM attachment before and after reaming were measured using three-dimensional isotropic MRI scanning post-operation
次要结局
未报告次要终点