Interference Screw Mectascrew-B Postmarket Study

This is an observational prospective study with the aim toassess the clinical outcomes at 1year after surgery for a specific composite IS (Medacta Mectascrew B) at 12 months following ACL or PCL reconstruction. Patients with an ACL or PCL tear scheduled for surgery at OCM Klnik GmbH hospital will be enrolled in the study, after the subscription of informed consent. The injured ligament will be restored with an auto- or allograft that will be fixed with a composite IS (Mectascrew-B, Medacta International SA). Data concerning demography, preoperative clinical conditions, surgical details including device implanted, tendon harvesting procedure and complications occurred, postoperative clinical data (as per standard practice at 6 weeks, 6 and/or 12 months) will be prospectively collected, in order to assess the functional outcomes (IKDC objective and subjective) and the knee stability (ROM, Pivot Shift or Reverse Pivot Shift test, anterior or posterior drawer test) of the patients. The treated knee will be also evaluated radiologically by std x-ray according to standard practice to assess swelling, tunnel widening, and resorption problems. The results of this exam will be correlated to the pre-operative findings and to the functional and clinical outcomes evaluated with the different forms