Methods A customized reamer was used to make the bottleneck-like femoral tunnel, and the patellar tendon-tibial tuberosity autograft was harvested.

• 方法以山羊为模型,用阶梯状联合钻一次成形建立股骨倒置瓶颈状隧道,以髌腱-胫骨结节骨块为移植物,胫骨壁外口骨桥打结固定。