A Study Of Arthroscopy On Reconstruction Of ACL By Using Single-bundle With Four Strands Or Double-bundle With Eight Strands Autogenous Tendon

Objective: It is a study of investigation. We want to test the advantages ofdouble-bundle reconstruction of ACL with8strand autogenous gracilis orsemitendinosus tendon graft rather than single-bundle with4strand autogenous gracilisor semitendinosus tendon.Methods: We chose thirty-three ACL rupture patients who were reconstructedwith single-bundle4strands autogenous gracilis or semitendinosus tendon graft orwith double-bundle8strands autogenous gracilis or semitendinosus tendon graftarthroscopically. We evaluate the knee’s stabilization and the range of motion. Thepatients were evaluated with IKDC, Lysholm and Tegner rating scale with followed updata.Results: The time of the following up is from half year to18months (mean11months). The double-bundle IKDC knee score were (42.2±5.8) preoperatively and(93.4±4.8) postoperatively; The single-bundle IKDC knee score were (43.4±5.5)preoperatively and (89.7±3.7) postoperatively (P<0.05).The double-bundle Lysholmknee score were (45.7±6.1) preoperatively and (94.8±3.7) postoperatively; Thesingle-bundle Lysholm knee score were (46.8±4.9) preoperatively and (90.8±3.3)postoperatively (P<0.05).The double-bundle Tegner sport level were (3.4±0.7)preoperatively and (6.3±0.5) postoperatively; The single-bundle Tegner sport levelwere (3.7±0.6) preoperatively and (6.1±0.4) postoperatively (P<0.05). In all cases,theknees’ ability of sport were improved.Conclusion: Arthroscopic single-bundle reconstruction of ACL with4strandautogenous gracilis or semitendinosus tendon graft double-bundle reconstruction ofACL with8strand autogenous gracilis or semitendinosus tendon graft are both reliable methods to restore the stabilization and the function of the knee. Double-bundlereconstruction of ACL with8strand has more advantages than single-bundlereconstruction of ACL with4strand autogenous gracilis or semitendinosus tendongraft.