to evaluate the radial displacement of meniscal allograft transplants (MATs) in patients operated with an open technique vs. an arthroscopic technique at 1 year postoperatively. Radial displacement or extrusion of the graft is frequently observed after meniscus transplantation. The hypothesis is that arthroscopically inserted MATs extrude less than open MATs and therefore have a more intra-articular position than open surgery transplants. 39 patients were included in the study: the first group of open surgery transplants consisted of 16 patients (10 lateral, 6 medial). The second group of arthroscopic transplants consisted of 21 patients (14 lateral, 7 medial). MR-images were taken one year post-surgery. The displacement, evaluated on 1,5T MR coronal images, was defined as the distance between the tibial plateau and the outer edge of the meniscus.Purpose
Materials and Methods