Abstract
Bone tunnel enlargement after Anterior Cruciate Ligament Reconstruction (ACL-R) is a well-accepted phenomenon but there are very few published data comparing the extent of tunnel widening by various methods of fixation after ACL-R. To compare the femoral and tibial tunnel widening following ACL-R with different methods of fixation using CT scan. This one year prospective study included all patients with chronic Anterior Cruciate Ligament (ACL) injury who underwent primary arthroscopic ACL-R using tripled hamstring tendon autograft. The graft was fixed to the tibial tunnel by Interference Screw (IFS) or Suture Disc (SD) and to the femoral tunnel by IFS, SD, Cross-Pin (CP) or Endo-button CL (Smith & Nephew). The widening of the tibial and femoral tunnels in different methods of fixation was assessed by Computed Tomography (CT) at 12 months follow-up; and was compared using paired sample test. A total of 63 patients were included in the study of which 58 (92%) were males and 5 (8%) were females, with a mean age of 29.1 ± 5.9 years. The tibial tunnel widening at one year follow-up was 1.680 ± 1.08794 (19.37%) and 1.517 ± 0.94834 mm (17.39%) by IFS and SD methods respectively. Femoral tunnel widening at one year follow-up was 1.294 ± 0.231, 1.809 ± 0.912, 1.320 ± 0.238, 1.779 ± 0.889 mm by IFS, SD, EB, and CP methods respectively. Femoral tunnel widening following suture disc method of fixation was very highly significant (p<0.001) in comparison with other methods. Femoral tunnel and tibial tunnel widening varies with different methods of fixation and was maximum with suture disc method compared to others at one year follow-up after ACL-R.
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More From: Journal of clinical and diagnostic research : JCDR
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