Methods: One hundred twenty-nine patients were divided into 3 groups based on type of aperture fixation: none, bioabsorbable interference screws, and autogenous bone cores.

• 方法：根据隧道口加强的类型将129名患者分为3组：不加强固定、生物可吸收螺钉加强固定及自体骨加强固定。