Abstract
Introduction: The anterior cruciate ligament (ACL) is the most frequently injured knee ligament, accounting for about 50% of all knee ligament injuries . The principle function of the ACL is to limit anterior translation of the tibia on the femur. Patients with a lesion of the ACL are characterized by difficulty with athletic performance and giving way symptoms in daily life activities. The purpose of this study is to investigate the short-term functional and clinical outcomes after anatomic ACL reconstruction by single bundle technique with the help of Lysholm scoring system and to assess the validity of the functional test (one leg hop test. Materials & methods: This cohort study included 25 patients (2 females and 23 males), mean age 28.4(1849yrs), with unilateral ACL tear who underwent ACL reconstruction by anteromedial portal technique using 4 strand hamstring graft. Follow up was done in 24 patients (1 patient lost due to infection and graft removal) at a median time of 7.5 months (6 to 11 months) who received standard outpatient and home based rehabilitation and analysis of Lysholm score, single leg hop test and patients’ satisfaction with outcome (VAS) was done. Results: Pre-operative lysholm score, instability subscore, pain subscore and single hop % was 49.12, 8.95, 10.20 and 21.96% respectively. At the follow up Lysholm score was 89.96+-7.9(0 -100), the lysholm instability subscore was 23.33+-3.18 (0 -25), the lysholm pain subscore was 20.42+-3.58 (0 -25), single leg hop test was 69.09+-12.08 % of the normal limb and patients satisfaction score by VAS was 7.6 (0 -10). Excellent results were found in 37.5% patients, good results in 54.16% and poor in 8.3% patients. The score and hop test % as compared to pre-operative values were found to be highly significant with p value<0.001. The highest correlation coefficient was found between lysholm score and single leg hop test (p=0.64) proving its validity, and between score and patients’ satisfaction (p =0.75). Conclusion: We conclude that the anteromedial portal technique and anatomic placement of grafts is an effective surgical technique for treating ACL deficient knees. It restores stability with excellent clinical and functional results. Also single leg hop test is a useful and reliable functional test for evaluating post-operative outcome after an ACL reconstruction.
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