title: [Anterior cruciate ligament reconstruction with hamstring tendons preserved tibial insertion and an implant fixation technique of hamstring tendon knot and bone bolt press-fit].
abstract: OBJECTIVE
  To evaluate the feasibility of hamstring autograft anterior cruciate ligament reconstruction with hamstring tendons insertion on tibia preserved and an implant fixation technique of hamstring tendons knot and bone bolt press-fit.
  
  
  METHODS
  Twenty cases of injured anterior cruciate ligament were reconstructed. There were 15 males and 5 females with the average age of 22 years old. Ten left knees and 10 right knees were involved. Hamstring tendons were taken, and pretension was performed. Tibial tunnel and femoral tunnel were prepared,and the femoral tunnel was a frame of narrow inside and wide outside. The hamstring tendons knot and bone bolt were pulled inside of femoral tunnel. The tendons distal of tendons knot were brought to pass the femoral tunnel, joint capsule and another tibial tunnel. Then, the tendons distal of tendons knot were tightened together with the part of hamstring tendons of which the insertion were on tibia. After the operation, the knee was fixed at a flexion of 45 degrees by brace.
  
  
  RESULTS
  The patients were followed up for 8 to 24 months. The function of troubled knees was evaluated by Lysholm knee functional scale. The average knee score were 61.5 +/- 4.6 and 92.5 +/- 3.7 respectively before and after operation, and the difference was statistically significant (P < 0.05).
  
  
  CONCLUSIONS
  Hamstring tendons insertion on tibia preserved and an implant fixation technique of hamstring tendons knot and bone bolt press-fit was biological fixation for anterior cruciate ligament reconstruction with hamstring. The advantage of this method was avoidance of using high cost material for fixation,which lessened spending for the patients. And it was also benefit for tendon-bone healing.
authors.affiliation: Department of Orthopaedics and Traumatolog, the People's Hospital of Guongzhoa, Gucheng 441700, Hubei, China. zhangzhou175@yahoo.com.cn
authors.forename: Guang-hu
authors.initials: GH
authors.lastname: Song
mesh_terms: D000293:Adolescent; D000328:Adult; D016118:Anterior Cruciate Ligament / Q000601:surgery* / Q000637:transplantation; D000070598:Anterior Cruciate Ligament Injuries; D050376:Bone-Patellar Tendon-Bone Grafting; D005260:Female; D006801:Humans; D007719:Knee Joint / Q000503:physiopathology / Q000601:surgery*; D008297:Male; D019651:Plastic Surgery Procedures; D013710:Tendons / Q000601:surgery / Q000637:transplantation*