Anatomical measurement of adult normal femur and its clinical significance on total knee arthroplasty
- VernacularTitle:成人正常股骨解剖测量及其在膝关节置换的临床意义
- Author:
Wei WU
;
Jianzhong XU
;
Zhangsheng GUO
- Publication Type:Journal Article
- Keywords:
Knee arthroplasty;
Femur;
Anatomy
- From:
Orthopedic Journal of China
2006;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
[Objective]To measure adult normal femur specimen in order to obtain accurate femoral resection and match the distal femoral in total knee arthroplasty.[Method](1)Forty-seven adult normal femur specimens of central Chinese were used for taking digital pictures in both anteroposterior and medialateral position.Five angles were measured through drawing lines of fixed point.(2)The exact position of the entry point was defined by the two wires on the specimens.[Result](1)The five angles reflect distal femoral anatomy features on the frontal plane and sagittal plane.(2)The mean value of distance from the entry point to the center of the intercondylar notch was 6.21 mm and the distance from the entry point to the anterior margin of the femoral posterior cruciate ligament(PCL) insertion is found to be 6.7 mm.[Conclusion](1)The distal one-third of femora was found to be outward bowing on frontal plane and forward bowing on Sagittal plane.Especially,the forward bowing is more remarkable than Outward bowing.So,when the position of intramedullary guide stick is decided by distal femoral anatomy,the axis alignments on frontal and Sagittal planes are both important.(2)During total knee afthroplasty the exact position of entry point may be defined by the Center of the intefcondylar notch and femoral PCL insertion.
