Hamada M, Shino K, Mitsuoka T, Abe N, Horibe S
Department of Orthopaedic Sports Medicine, Osaka Rosai Hospital, Sakai, Japan.
Arthroscopy. 1998 Oct;14(7):696-701. doi: 10.1016/s0749-8063(98)70096-9.
We measured the cross-sectional area (CSA) of the semitendinosus tendon (SMT) in 79 anterior cruciate ligament (ACL)-injured patients using magnetic resonance imaging (MRI) to scrutinize their appropriateness for ACL grafts. Measurements of the CSAs of the SMT with MRI were closely correlated with intraoperative direct measurement (y = 0.697). The mean CSAs of the SMT measured with MRI ranged from 6.3 to 15.0 mm2 with a mean of 10.1+/-2.1 mm2. The CSA of the SMT measured with MRI proved to be a useful indicator to determine preoperatively whether the SMT graft would be of adequate dimensions (7 mm or more in diameter, 60 mm or more in length) for ACL reconstruction. If the CSA of the SMT was more than 11 mm2, a sufficiently thick and long graft could be prepared with a tripled or quadrupled SMT in 89% of cases. We conclude that tissue CSA measurements using MRI could potentially be implemented as a useful tool for determining the most appropriate donor autograft tissue preoperatively, thus minimizing harvest-site morbidity.
我们使用磁共振成像（MRI）测量了79例前交叉韧带（ACL）损伤患者的半腱肌腱（SMT）横截面积（CSA），以评估其作为ACL移植物的适用性。MRI测量的SMT横截面积与术中直接测量结果密切相关（y = 0.697）。MRI测量的SMT平均横截面积范围为6.3至15.0mm²，平均值为10.1±2.1mm²。事实证明，MRI测量的SMT横截面积是术前确定SMT移植物尺寸是否足以用于ACL重建（直径7mm或更大，长度60mm或更长）的有用指标。如果SMT的横截面积大于11mm²，则在89%的病例中可以用三倍或四倍的SMT制备足够厚且长的移植物。我们得出结论，使用MRI测量组织横截面积有可能作为术前确定最合适的自体移植组织的有用工具，从而将取腱部位的发病率降至最低。
