Clinical Outcome Assessment of Medial Femoral Tunnel Placement in Anterior Cruciate Ligament Reconstruction

Purpose of this study was to evaluate outcome of Anterior Cruciate Ligament (ACL) reconstruction surgery with a medial tibia tunnel entrance in patients with rupture of the ligament.

This cross-sectional study was performed in patients admitted to Sina Hospital in Tehran from April 2009 to April 2011. ACL reconstruction was done by arthroscopic surgery and the patients were assessed six months after surgery. International Knee Documentation Committee (IKDC) as a standard questionnaire and arthrometer (model KT-1000) were used to measure patients'' activity level and functional testing of the device، respectively. Final knee score was given to the patient based on the lowest score in each section which was presented in four groups: A، B، C and D.

one hundred seven patients with mean age of 29. 61 ± 5. 15 years (21-38 years) enrolled in this study among which 84 (78. 5%) were males. Most common causes of knee trauma were sport (54. 20%)، road traffic accidents (19. 62%)، daily activities (16. 82%) and work activity (9. 3%). The mean femoral channel length was 44. 75 ± 3. 41mm. The mean of ROM of Knee after surgery was 143. 21 ± 5. 37 (133-150). The functional test was performed using an arthrometer and differences between two knees displacement were calculated six months after surgery which revealed that the difference between males and females was significant (p=0. 03).

The results showed the transtibial graft position is closer to the anatomical position in medial femoral tunnel placement.