The innovative M.4 X-lock offers the required safety and flexibility for versatile aftercare of knee injuries. Properties Locked joint mode with the knee in extension Early loading possible in extension Prevents muscle atrophy Improves proprioception Reduces risk of thrombosis Free mobile mode without weight-bearing on the knee Joint can be switched to the free mobile mode with a single click Patient can sit comfortably Early functional exercises possible Further benefits New padding material allows patient to shower with the orthosis Split strap pads can be positioned individually to reduce the pressure on the surgical suture Modern design in matt black-green Indications Meniscus sutures postoperative Quadriceps ruptures (patellar ligament, quadriceps tendon) - postoperative Cartilage operations in the region of the patella and patellofemoral joint Suture anchor surgery of the patella (e.g. MPFL replacement graft) or patellar luxations Meniscus sutures with secondary ligamentous injuries (e.g. cruciate ligament rupture)