CAJ | 학술논문

目的对膝关节前交叉韧带(ACL)进行生物力学分析,探讨ACL的生物力学作用.方法建立膝关节三维有限元模型,施加1150 N的轴向压力和100 N胫骨前向力,对膝关节进行以下2个方面生物力学分析:具有完整ACL的膝关节、切除ACL的膝关节.结果 ACL完整时,胫骨水平前向移位4.5 mm,ACL承受全部前向负荷的78％,轴向负荷的57％由膝关节外侧间室承载.切断ACL后,胫骨水平前向位移增至16.5 mm,轴向负荷70％由内侧间室承载,半月板及关节软骨应力增大.结论 ACL为限制胫骨前移的首要的结构,ACL切除后,膝关节明显不稳定,因此在ACL损伤后要及时修复以恢复膝关节正常的功能.
목적 대슬관절전교차인대(ACL)진행생물역학분석,탐토ACL적생물역학작용.방법 건립슬관절삼유유한원모형,시가1150 N적축향압력화100 N경골전향력,대슬관절진행이하2개방면생물역학분석:구유완정ACL적슬관절、절제ACL적슬관절.결과 ACL완정시,경골수평전향이위4.5 mm,ACL승수전부전향부하적78％,축향부하적57％유슬관절외측간실승재.절단ACL후,경골수평전향위이증지16.5 mm,축향부하70％유내측간실승재,반월판급관절연골응력증대.결론 ACL위한제경골전이적수요적결구,ACL절제후,슬관절명현불은정,인차재ACL손상후요급시수복이회복슬관절정상적공능.
Objective To analyze the biomechanics of the anterior cruciate ligament (ACL).Methods An intact three-dimensional finite model of knee joint was established.With the model to have a finite element analysis of biomechanics of the knee joint.Two cases were simulated under a axial compressive load of 1150 N and an anterior tibial load of 134 N:a knee with:(a) Native ACL,(b) No ACL.Results With native ACL,the tibia shift forward 4.5 mm,the ACL bears 78％ of the anterior tibial load,and the lateral compartment bears 57％ of the axial compressive load.With no ACL,the tibia shift forward 16.5 mm,and the medial compartment bears 70％ of the axial compressive load,the stress of the menisci and cartilage increased.Conclusion The ACL is the principle structure in retaining stability of the knee joint,it is essential to be adequately repaired or replaced after injury to restore its normal function.