解剖学报
解剖學報
해부학보
ACTA ANATOMICA SINICA
2009年
6期
997-1000
,共4页
膝%关节成形术%置换%股骨%旋转%磁共振成像%人
膝%關節成形術%置換%股骨%鏇轉%磁共振成像%人
슬%관절성형술%치환%고골%선전%자공진성상%인
Knee%Arthroplasty%Replacement%Femur%Rotation%Magnetic resonance imaging%Human
目的 在MRI上研究股骨远端上髁解剖,为全膝置换术中定位外科经股骨上髁轴(STEA)及股骨假体大小设计提供可靠依据. 方法 对78侧正常成人膝关节行磁共振扫描,测量STEA宽度、STEA的骨性标志与膝关节后侧及远端关节线的距离,股骨远端内外上髁的前后径大小及股骨后髁角. 结果 STEA宽度在男性中为(79.55±4.90)mm,在女性中为(71.18±4.22)mm,股骨内上髁沟最低点、外上髁最凸点与膝关节后方关节线及远端关节线的距离与STEA宽度具相关性,股骨远端内外上髁的前后径大小与STEA宽度也具相关性,股骨后髁角为(4.22±2.07)°. 结论 国人股骨远端上髁解剖大小明显小于欧美国家人群,股骨远端内外上髁的前后径与STEA宽度成一定比例,STEA的骨性标志与膝关节后侧及远端关节线的距离可为定位STEA提供一定帮助,通过术中触摸或PCL定位STEA的可靠性差.
目的 在MRI上研究股骨遠耑上髁解剖,為全膝置換術中定位外科經股骨上髁軸(STEA)及股骨假體大小設計提供可靠依據. 方法 對78側正常成人膝關節行磁共振掃描,測量STEA寬度、STEA的骨性標誌與膝關節後側及遠耑關節線的距離,股骨遠耑內外上髁的前後徑大小及股骨後髁角. 結果 STEA寬度在男性中為(79.55±4.90)mm,在女性中為(71.18±4.22)mm,股骨內上髁溝最低點、外上髁最凸點與膝關節後方關節線及遠耑關節線的距離與STEA寬度具相關性,股骨遠耑內外上髁的前後徑大小與STEA寬度也具相關性,股骨後髁角為(4.22±2.07)°. 結論 國人股骨遠耑上髁解剖大小明顯小于歐美國傢人群,股骨遠耑內外上髁的前後徑與STEA寬度成一定比例,STEA的骨性標誌與膝關節後側及遠耑關節線的距離可為定位STEA提供一定幫助,通過術中觸摸或PCL定位STEA的可靠性差.
목적 재MRI상연구고골원단상과해부,위전슬치환술중정위외과경고골상과축(STEA)급고골가체대소설계제공가고의거. 방법 대78측정상성인슬관절행자공진소묘,측량STEA관도、STEA적골성표지여슬관절후측급원단관절선적거리,고골원단내외상과적전후경대소급고골후과각. 결과 STEA관도재남성중위(79.55±4.90)mm,재녀성중위(71.18±4.22)mm,고골내상과구최저점、외상과최철점여슬관절후방관절선급원단관절선적거리여STEA관도구상관성,고골원단내외상과적전후경대소여STEA관도야구상관성,고골후과각위(4.22±2.07)°. 결론 국인고골원단상과해부대소명현소우구미국가인군,고골원단내외상과적전후경여STEA관도성일정비례,STEA적골성표지여슬관절후측급원단관절선적거리가위정위STEA제공일정방조,통과술중촉모혹PCL정위STEA적가고성차.
Objective Measure the epicondyles of the distal femur on magnetic resonance image(MRI), in order to locate presicely the surgical transepicondylar axis(STEA) in total knee arthroplasty(TKA) and to provide theoretical basis for the designing of the size of the femoral component. Methods Totally 78 normal knees of Chinese individuals were studied. The images of coronal, sagittal and traverse sections of the knee were obtained by magnetic resonance image. Measurement included the width of the STEA, distance between the epicondyles and the joint line, anterior posterior width of the medial and lateral epicondyles, posterior condyle angle. Results The width of the STEA averaged(79.55±4.90)mm in males, and femles(71.18±4.22)mm. The distance from the epicondyles to the joint line was correlated with the width of the STEA, so was the anterior posterior width of epicondyles. PCA averaged(4.22±2.07)°. Conclusion The size of the epicondyles in Chinese is significantly smaller than that of the Westerns. The ratio between anterior posterior width of the medial epicondyle and the width of the STEA is 0.84, and is 0.87 between anterior posterior width of the lateral epicondyle and the width of the STEA. The distance from the epicondyles to the joint line is helpful to locate the STEA. The reliability is poor to locate the STEA by touch or PCL.
