MID-TERM RESULTS OF SINGLE-STAGE REVISION ANTERIOR CRUCIATE LIGAMENT RECONSTRUCTION: RETROSPECTIVE ANALYSIS OF 36 CASES.

Background. Revision anterior cruciate ligament (ACL) reconstruction is becoming an increasingly common knee surgery procedure due to the annual increase in the number of primary ACL reconstructions performed. Graft choice and determining the stages of surgical treatment using a preoperative assessment of the possibility of performing the most anatomical revision tunnels and their relative position with the primary tunnels are the main factors that influence the results of treatment. Aim of the study – сomparative assessment of the results of using autografts from the hamstring tendons and the peroneus longus tendon as part of a one-stage revision reconstruction of the anterior cruciate ligament. Material and methods. A retrospective analysis was performed on 36 patients who underwent revision ACL reconstruction. The study group "PLT" (n=19) - patients with an autograft from the peroneus longus tendon and the comparison group - "HT" (n=17) - a graft from the hamstring tendons. Subjective and objective assessments were carried out using the KOOS, IKDC and Lysholm scales. the position of the central entry points into the primary and revision canals was also determined and assessed. Results. There were no statistically significant differences in the objective assessment of knee stability. Significantly better results of subjective assessment of knee joint function using the Lysholm and KOOS scales were obtained in the PLT group (p=0.042 and p0.001, respectively). The position of the revision tunnels corresponded to the standard values, however, the position of the femoral tunnel had a slight displacement cranially and anteriorly. It was also revealed that the diameter of the PLT graft was statistically significantly larger than the HT graft (p0.001). Conclusion. One-stage revision ACL reconstruction is a safe and effective surgical procedure that provides satisfactory objective and subjective clinical results. The use of an autograft from the peroneus longus tendon provides better results compared to a graft from the hamstring tendons.