Aune A K, Cawley P W, Ekeland A
Martina Hansens Hospital, Oslo, Norway.
Am J Sports Med. 1997 Mar-Apr;25(2):187-90. doi: 10.1177/036354659702500208.
The proposed skiing injury mechanism that suggests a quadriceps muscle contraction can contribute to anterior cruciate ligament rupture was biomechanically investigated. The effect of quadriceps muscle force on a knee specimen loaded to anterior cruciate ligament failure during anterior tibial translation was studied in a human cadaveric model. In both knees from six donors, average age 41 years (range, 31 to 65), the joint capsule and ligaments, except the anterior cruciate ligament, were cut. The quadriceps tendon, patella, patellar tendon, and menisci were left intact. One knee from each pair was randomly selected to undergo destructive testing of the anterior cruciate ligament by anterior tibial translation at a displacement rate of 30 mm/sec with a simultaneously applied 889 N quadriceps muscle force. The knee flexion during testing was 30 degrees. As a control, the contralateral knee was loaded correspondingly, but only 5 N of quadriceps muscle force was applied. The ultimate load for the knee to anterior cruciate ligament failure when tested with 889 N quadriceps muscle force was 22% +/- 18% higher than that of knees tested with 5 N of force. The linear stiffness increased by 43% +/- 30%. These results did not support the speculation that a quadriceps muscle contraction contributes to anterior cruciate ligament failure. In this model, the quadriceps muscle force protected the anterior cruciate ligament from injury during anterior tibial translation.
对所提出的滑雪损伤机制进行了生物力学研究，该机制认为股四头肌收缩可能导致前交叉韧带断裂。在人体尸体模型中，研究了股四头肌力量对在前交叉韧带失效时进行胫骨前移加载的膝关节标本的影响。在来自6名供体的双膝中，平均年龄41岁（范围为31至65岁），除前交叉韧带外，切断关节囊和韧带。股四头肌肌腱、髌骨、髌腱和半月板保持完整。从每对膝关节中随机选择一个，通过以30毫米/秒的位移速率进行胫骨前移并同时施加889牛的股四头肌力量，对前交叉韧带进行破坏性测试。测试期间膝关节屈曲为30度。作为对照，对侧膝关节进行相应加载，但仅施加5牛的股四头肌力量。当用889牛的股四头肌力量测试时，膝关节至前交叉韧带失效的极限载荷比用5牛力量测试的膝关节高22%±18%。线性刚度增加了43%±30%。这些结果不支持股四头肌收缩导致前交叉韧带失效的推测。在该模型中，股四头肌力量在前胫骨前移过程中保护前交叉韧带免受损伤。
