We estimated the weighted mean differences or standardized mean differences , with their 95 % confidence interals , in mechanical axis alignment , duration of surgery , and functional scales between naigated and conentional surgery 對(duì)于導(dǎo)航和傳統(tǒng)術(shù)式的力軸校直、手術(shù)時(shí)間和功能得分,我們計(jì)算了加權(quán)均數(shù)差值或標(biāo)準(zhǔn)均數(shù)差值的95 %可行區(qū)間。