Comparison of tibial inlay versus transtibial techniques for posterior cruciate ligament reconstruction in mutiple-ligament injuries: minimum 2-year follow-up / 中华骨科杂志

ABSTRACT

Objective To compare stability between the traditional endoscopic technique and thetibial inlay in treatment of posterior cruciate ligament (PCL) reconstruction.Methods Between April 2005 and December 2009,135 patients underwent surgery for PCL in multiple-ligament injuries,and only 88 (65.2％) patients were followed up longer than 2 years.The follow-up time ranged 24 to 77 months (mean,45.9 months).Fifty-seven cases (64.8％) were treated with endoscopic transtibial PCL reconstructions,and 31(35.2％) received tibial inlay.Each patient was evaluated using the Tegner,Lysholm,and American Academy of Orthopaedic Surgeons (AAOS) knee-rating scales,KT-1000 arthrometry and Telos.Results The preoperative KT-1000 measurement was (13.5±4.8) mm (transtibial) and (13.7±5.2) mm (inlay).The postoperative KT-1000 measurement was (2.4±3.4) mm (transtibial) and (2.2±3.6) mm (inlay).The preoperative Telos measurement was (14.9±7.1) mm (transtibial) and (14.9±5.9) mm (inlay).The postoperative Telos measurement was (4.6±4.0) mm (transtibial) and (4.3±3.9) mm (inlay).There were significant differences (P＜0.01) in KT-1000 and Telos between pre-and post-operative measurement,while it does not reach statistical significance (P=0.880,0.956,0.744,0.647) in KT-1000 and Telos when comparing transtibial and inlay technique.There were no significant differences in sex,age,time from injury to surgery,combined injuries or Lysholm,Tegner,AAOS knee score between two groups.Conclusion There was no important advantage of one technique over the other.Transtibial or inlay technique for PCL reconstruction can restore anteroposterior knee stability.