Fig. 1

The visual field of endoscopic surgery in the two groups. (A) An arthroscopic probe (tail end 5 mm) was used to measure the length of the stump and ligament; (B) Reserving 1/2 of the length of the reconstructed ligament; (C) The lengths of the stump and ligament were measured by the arthroscopic probe (tail end 5 mm) (D) Remnant > 1/2 reconstructed ligament length. The scale is 5 mm