下肢對(duì)線和間隙平衡

1、人工膝關(guān)節(jié)WorkShop--TKA1.膝關(guān)節(jié)置換適應(yīng)癥及基礎(chǔ)解剖2.下肢對(duì)線與間隙平衡3.膝關(guān)節(jié)手術(shù)操作假骨練習(xí)4.總結(jié)：人工膝關(guān)節(jié)的發(fā)展,蘭天翔 Sky Lan,TKA手術(shù)下肢對(duì)線與間隙平衡,Sky Lan,“一線兩間隙”,全膝關(guān)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(yuǎn)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(guān)節(jié)的生理外翻。,Limb & Joint Alignment下肢和關(guān)節(jié)對(duì)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(guān)節(jié)中心及踝關(guān)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(shí)，該線向下內(nèi)側(cè)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(guān)節(jié)線垂直與中位線，因此與HKA軸約呈三度、向內(nèi)側(cè)傾斜。,,,Valgus deformity,Varus deformity,,Limb & Joint Alignment下肢和關(guān)節(jié)對(duì)線,手術(shù)對(duì)線目的與要求,假體關(guān)節(jié)線垂直與下肢力學(xué)軸!!!,脛骨對(duì)線,股骨對(duì)線,根