Isometry of grafts in PCL reconstruction under femoral tunnel shifting condition
- VernacularTitle:PCL双束重建术中股骨隧道定位对移植物等距特性的影响
- Author:
Min LIU
;
Ruixin LIN
;
Guojing YANG
;
Licheng ZHANG
;
Chunyuan CAI
;
Dongsheng ZHANG
;
Chengxuan TANG
;
Weiliang WANG
- Publication Type:Journal Article
- Keywords:
Postorior cruciate ligament;
Femoral attachment;
Reconstruction;
Isometric point
- From:
Journal of Medical Biomechanics
2009;24(6):434-438
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the isometry of grafts in PCL(posterior cruciate ligament)double-bundle re-construction under femoral tunnel shifting condition.Method Knee specimens from ten fresh frozen cadavers were used.PCL were divided into anterolateral bundles(ALB)and posteromedial bundles(PMB)to the inser-tion footorint.The anterior,postedor,proximal,distal and central points of the two bundles'femoral attachment site were respectivelyanchored to the middle of the PCL's tibial attachment site by the trial wires.Changes in length of the intra-articular part of the wires were recorded while the knee was flexed from 0°to 120°.Result The length changes in every point were compared.All of the maximal length changes of ALB's proximal,pos-todor points and PMB's proximal points were not greater than 2mm.No significant difference between the length changes of ALB's proximal point and posterior(P=0.864>0.05)was found.Conclusions The femo-ral tunnel for the PCL double-bundle reconstruction should be located as follows:ALB should be at the middle point of upper edge of femoral attachment site(proximal point),while PIVIB at the middle point of femoral attachment site(proximal point).
