Jenkins W L, Munns S W, Jayaraman G, Wertzberger K L, Neely K
Department of Physical Therapy Education, School of Allied Health Sciences, East Carolina University, Greenville, NC 27858, USA.
J Orthop Sports Phys Ther. 1997 Jan;25(1):49-56. doi: 10.2519/jospt.1997.25.1.49.
Anterior displacement of the tibia during knee extension movement has been identified as a possible factor in anterior cruciate ligament (ACL) reconstruction failure due to the increased stress placed on the graft, leading to a creep response in the healing graft. Nineteen healthy subjects with a unilateral ACL deficiency were evaluated in an open and closed kinetic chain. A KT-1000 was used to measure anterior displacement of the tibia on the femur during isometric open and closed kinetic chain exercise at 30 and 60 degrees. An analysis of variance for repeated measures followed by Newman-Keuls multiple comparison tests were performed to determine the differences between the open and closed kinetic chain for the involved and uninvolved knee. Statistically significant differences were found when comparing the amount of anterior displacement between the open and closed kinetic chain for the involved and uninvolved knee at 30 and 60 degrees. Clinicians utilizing isometric exercise in rehabilitation of the anterior-cruciate-deficient and the anterior-cruciate-reconstructed patient should be aware of the increased amount of anterior tibial displacement when comparing open and closed kinetic chain exercise.
在膝关节伸展运动过程中，胫骨前移被认为是导致前交叉韧带（ACL）重建失败的一个可能因素，因为移植物上的应力增加，会使愈合中的移植物产生蠕变反应。对19名单侧ACL缺失的健康受试者进行了开链和闭链评估。使用KT-1000在30度和60度等长开链和闭链运动期间测量胫骨在股骨上的前移情况。进行重复测量方差分析，随后进行纽曼-基尔斯多重比较检验，以确定患侧和未患侧膝关节开链和闭链之间的差异。在比较患侧和未患侧膝关节在30度和60度时开链和闭链的前移量时，发现了具有统计学意义的差异。在对前交叉韧带损伤和前交叉韧带重建患者进行康复治疗时，使用等长运动的临床医生在比较开链和闭链运动时应注意胫骨前移量的增加。
