4 ? nothing but from biomechanics side , it is acceptable between introversion 6 degree and exstrophy 1 0 degree after osteotomy 4 、單純從生物力學(xué)的角度闡述,截骨矯形在內(nèi)翻6 ”至外翻10 ”之間是可以接受的。
3 , stress on the outer side of knee increased little from 0 to 12 degree and increased obviously when the angle greater than 20 degree according to the enlargement of angle of exstrophy . stress mainly concentrated outside of the tibial plateau and center and inboard of the complex 3 、隨著膝關(guān)節(jié)外翻角度逐漸增加,在最初12內(nèi)應(yīng)力值變化不大,外翻大于20后應(yīng)力開始變化較明顯,應(yīng)力主要集中于外側(cè)脛骨平臺和外側(cè)復(fù)合體中心及內(nèi)側(cè)。
3 ^ the easiest damage area is outside of the tibial plateau and center and inboard of the complex according to the enlargement of the angle of exstrophy . exstrophy greater than 20 degree is possible critical angel of the beginning of damage and the precaution of complication after osteotomy 3 、隨膝關(guān)節(jié)外翻角度增加,最易受損傷的部位位于外側(cè)勝骨平臺和外側(cè)復(fù)合體中心和內(nèi)側(cè),外翻大于20 ”可能為外翻應(yīng)力破壞和截骨預(yù)防的臨界角度。