Clinical research of anterior cruciate ligament anatomic reconstruction using three-tunnel double-bundle methods with Femoral-Intrafix system / 中华骨科杂志

ABSTRACT

Objective To investigate the results of arthroscopic anterior cruciate ligament anatomic reconstruction using three-tunnel double-bundle methods with Femoral-Intrafix system.Methods From October 2010 to October 2013,data of 30 cases of arthroscopic anterior cruciate ligament (ACL) reconstruction who were randomly used with Femoral-Intrafix system were retrospectively analyzed.Hamstring tendons autograft were used for all patients.The Femoral-Intrafix system fixation was used for the femoral tunnel and the Milagro interference screw was used for tibial tunnels.KT-1000 arthrometer measurements,Lachman and Pivot-shift tests,and knee function with the Intemational Knee Documentation Committee (IKDC),Lysholm scores were used for clinical evaluation.Results All the patients were followed up for an average time of 24.71 ± 1.60 months (range,18-36 months).No patients had ligament re-rupture,deep vein thrombosis,exfliation of interference screw,joint pain and limited mobility during follow-up period.At the latest follow-up,the Lachman sign was Ⅰ degrees positive in 1 patient,and all patients had normal range of motion.The Lysholm scores increased from preoperative 67.51 ±4.92 to 96.41 ±6.31 at the latest follow up.The IKDC scores increased from preoperative 62.31 ±5.45 to 95.61±6.32 at the latest follow up.There was 93.3％ excellent and good rate,including excellent in 23 cases,good in 5 cases,and fair in 2 cases according to the IKDC.All knee function scores were improved.The results of KT-1000 were improved significantly (7.62± 1.25 mm vs.1.53± 1.02 mm at 30° of flexion,5.43± 1.21 mm vs 1.07± 1.02 mm at 90° of flexion) at the tensile fore of 134 N.Conclusion Arthroscopic ACL reconstruction using three-tunnel double-bundle methods with the Femoral-Intrafix system fixation is a reliable technique,which is easy to operate and has satisfactory short clinical outcome for knee function recovery.