下肢對線和間隙平衡

1、人工膝關節(jié)WorkShop--TKA1.膝關節(jié)置換適應癥及基礎解剖2.下肢對線與間隙平衡3.膝關節(jié)手術操作假骨練習4.總結：人工膝關節(jié)的發(fā)展,蘭天翔 Sky Lan,TKA手術下肢對線與間隙平衡,Sky Lan,“一線兩間隙”,全膝關節(jié)置換的核心：,Varus 內(nèi)翻 = Towards the Midline 朝向中線Valgu

2、s外翻 = Away from the Midline 遠離中線 The tibia & femur do not form astraight line but form an obtuseangle of 170° – 175° the averagebeing 173° which is the physiologicalVa

3、lgus of the knee 脛骨與股骨不形成直線，而是170° – 175鈍角、平均173° ，這是膝關節(jié)的生理外翻。,Limb & Joint Alignment下肢和關節(jié)對線,The HKA Axis HKA 軸,A line connecting the centre of the femoral head the centre of the knee and the centre

4、of ankle 連接股骨頭中心、膝關節(jié)中心及踝關節(jié)中心的線 This line runs inferiorly medial forming an angle of approx. 3° to the midline in normal stance 正常姿態(tài)時，該線向下內(nèi)側與中位線約呈三度 The joint line is perpendicular to the m

5、idline and therefore lies approx. 3° medially oblique to the HKA axis 關節(jié)線垂直與中位線，因此與HKA軸約呈三度、向內(nèi)側傾斜。,,,Valgus deformity,Varus deformity,,Limb & Joint Alignment下肢和關節(jié)對線,手術對線目的與要求,假體關節(jié)線垂直與下肢力學軸!!!,脛骨對線,股骨對線,根