title: Remnant-preserving posterior cruciate ligament reconstruction with graft tension-relieving: a comparative study with conventional technique.
abstract: BACKGROUND
  Posterior cruciate ligament (PCL) tear is a severe injury to the knee joint and often requires surgical reconstruction. A number of PCL reconstruction techniques have been reported. However, the problem of residual laxity after surgery is not unusual with conventional techniques. This study aims to introduce a modified PCL reconstruction with remnant preservation and graft tension relieving.
  
  
  METHODS
  Between December 2008 and June 2011, 36 cases of PCL reconstruction were performed in our institute, 20 with conventional technique (Group I) and 16 with modified technique (Group II). Pre- and post-operative results of the international knee documentation committee knee evaluation form (IKDC), Lysholm, Tegner, and KT2000 side-to-side difference were obtained.
  
  
  RESULTS
  Significant improvements of IKDC, Lysholm, Tegner, and KT2000 results after surgery were found in both groups. Group II showed better improvement in all subjective examinations and significantly more decrease of KT 2000 side-to-side difference.
  
  
  CONCLUSIONS
  Modified PCL reconstruction with remnant preservation and graft tension relieving showed better results in restoration of posterior stability compared to conventional technique.
authors.affiliation: Institute of Sports Medicine, Peking University Third Hospital, Beijing 100191, China.
authors.forename: Xi
authors.initials: X
authors.lastname: Gong
authors.forename: Jia-Kuo
authors.initials: JK
authors.lastname: Yu
authors.forename: Ying-Fang
authors.initials: YF
authors.lastname: Ao
mesh_terms: D000328:Adult; D005260:Female; D006801:Humans; D007719:Knee Joint / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D016119:Posterior Cruciate Ligament / Q000601:surgery*; D019651:Plastic Surgery Procedures / Q000379:methods*