Clinical Outcomes of Three Different Modes of Femoral Hamstring Graft Fixation in Anterior Cruciate Ligament Reconstruction

Abstract

Abstract Introduction. There are various methods of anterior cruciate ligament (ACL) reconstruction of which the two main choices in autograft reconstruction involve the use of the bone-patella tendon-bone or hamstring graft. Femoral fixation can be divided into three main types: cortical suspensory devices such as Endobutton (Smith & Nephew, Arthrex), interference screws, and femoral transfixation devices such as Transfix (Arthrex) and Rigidfix (Depuy-Mitek). The aim of this study was to compare the clinical outcome between Rigidfix, Transfix and Endobutton devices for soft tissue femoral fixation in primary ACL reconstruction using the autogenous hamstring graft. Methods. We conducted our study in 48 patients admitted to our clinic, University Traumatology Clinic, Clinical Center "Mother Teresa", Skopje for ACL reconstruction from September 2009 to May 2013. The patients with ACL reconstruction were assigned as Rigidfix group (n=28), the second patients to Transfix group (n=13) and the third to Endobutton group (n=7). MRI of the knee joint was done prior to surgery. A data sheet, containing demographic data, examination findings and Tegner & Lysholm score, was completed for each patient. Results. Tegner & Lysholm the average scores before surgery were 2.52 and 34.75 (p>0.05). Six month after arthroscopy, the average value of Tegner and Lysholm scores in patients with ACL reconstruction was 8.37 and 89.08. Comparison among them showed that the operative mode of Endobutton femoral fixation had the highest level of the Lysholm score. Conclusions. Endobutton (Tight rope-RT) yielded a better outcome compared to the other two modes of femoral fixation in terms of instant stability of the graft and the general results.