分组统计手术时间，出血量，骨折愈合时间，并发症，膝关节功能。

Recorded the operation time, bleed, union time, complication, function of knee.

youdao

分组统计手术时间，出血量，骨折愈合时间，并发症，膝关节功能。

Recorded the operation time, bleed, union time, complication, function of knee.

youdao