Introduction: Dynamic intraligamentary stabilisation is a novel technique for treating a ruptured anterior cruciate ligament, developed after shortcomings were observed in the reconstruction method treatment. Ligamys technique has shown promising results but a lack of comparative studies with the reconstruction method exists, which would provide a conclusive answer to the effectiveness of the technique. Purpose: The purpose was to learn whether knee function after the dynamic ligament stabilisation of the anterior cruciate ligament using the Ligamys method differs from knee function after the standard anterior cruciate ligament reconstruction. Methods: A prospective study with 35 random subjects post-reconstruction and post-dynamic intraligamentary stabilisation was conducted. The patients were tested 3 months after the procedure. Patients were assigned the Tegner Activity Scale scores, Lysholm, and IKDC scores. Knee anterior laxity in the Lachman test position and in the anterior drawer phenomenon position was measured with a Rolimeter. Range of active flexion and extension of the knee joint was measured with a universal goniometer. Statistical analysis was conducted with SPSS and Microsoft Excel. The comparison between the two groups was done with Student's t-test for independent samples, the pre-post variable was compared with Student's t-test for paired samples. Results: 3 months post-operation there were no statistically relevant differences between the two groups according to the Tegner Activity Scale scores (p = 0, 595), the IKDC scores (p = 0, 217) and the Lysholm scores (p = 0, 265). Anterior laxity of ACL in 25° and 80° knee flexion did not show any statistically relevant differences between the two groups (p > 0, 05). Measurements of active flexion of the knee joint showed there were no statistically relevant differences in flexion limitation (p = 0, 298) nor in extension limitation (p = 0, 631) in the two groups. Differences between the two groups may exist but could have not been proven due to the low power of the tests. Discussion and conclusion: Short term, dynamic intraligamentary stabilisation proved to be an appropriate approach to treatment of acute ACL injuries in suitable candidates. The procedure is less invasive and means a shorter leave from work, making it an appropriate treatment. Determining the superiority or equivalence of the procedure will need a larger number of subjects and a future examination of its long-term effects.
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