Objective To compare the effect of allograft transplantation of meniscal acellular matrix and deep freezing meniscus,and to find out the better methods of meniscal preservation.

• 目的通过对低温冻存的同种异体半月板和半月板脱细胞基质移植效果的比较,寻找更好的同种异体半月板的保存方法。