The effect of fixation technique on graft position in anterior cruciate ligament reconstruction

  • Amendola A
  • Menon M
  • Clatworthy M
 et al. 
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Abstract

The purpose of this paper was to determine the extent to which the technique used in ACL reconstruction and fixation influences graft placement. This is a Comparative Radiographic cohort study. Precise graft placement is one of the most crucial components of a successful anterior cruciate ligament (ACL) reconstruction. Two commonly used techniques of ACL reconstruction are arthroscopic bone-patellar tendon-bone (B-PT-B) autograft with interference screw fixation and semi-tendinosus and gracilis (ST + G) tendon autograft with endobutton femoral and multiple staple belt buckle tibial fixation. Using radiographic measurements of bone tunnel position following ACL reconstruction this study quantified the extent to which these techniques influenced graft placement. Femoral and tibial tunnel position in ACL reconstruction was determined using the post-operative radiographs of 40 male patients who had undergone ACL reconstruction (20 B-PT-B and 20 ST + G). The primary outcome measure was location of bone tunnel position following ACL reconstruction. Measurements were based on the guidelines of Amis et al. Femoral tunnel position of B-PT-B grafts was an average of 9.36% more anterior in the sagittal plane than with ST + G grafts. The mean position of B-PT-B grafts was at 31.11% (SD = 5.45%). The mean position of the ST + G grafts was 21.76% (SD = 6.62%). This difference between the two was found to be significant (p < .001). As demonstrated by this study, placement and orientation may vary to accommodate technique and fixation. Clinical outcomes measured were similar in both groups.

Author-supplied keywords

  • Anterior Cruciate Ligament/ surgery
  • Arthroplasty/ methods
  • Bone Screws
  • Humans
  • Knee/ surgery
  • Male
  • Sutures
  • Tendons/ surgery
  • Transplants
  • Treatment Outcome

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Authors

  • A Amendola

  • M Menon

  • M Clatworthy

  • P J Fowler

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