Ligamys is a treatment method for fresh ruptures of the anterior cruciate ligament in which the patient's own cruciate ligament is preserved. The injured knee is stabilised dynamically by means of the implant, so that the torn cruciate ligament grows together 1 and regains its function. 2
The Ligamys implant comprises a monoblock and a suture: the polyethylene suture is secured in the femur using a flip anchor and guided along the injured ligament structure through the joint to the tibia.
There the suture is secured with pre-defined tension in the spring system which is anchored in the monoblock. This results in a dynamic connection between the femur and tibia which stabilises the joint and relieves the injured cruciate ligament. The cruciate ligament can grow back together while the spring system ensures knee stability in every phase of movement. 3
Due to the decreasing potential for healing, Ligamys must be used within 21 days after the rupture.
More information can be found on the Ligamys website.
1 Dynamic intraligametary stabilization: novel technique for preserving the ruptured ACL. Eggli St., Kohlhof H., Zumstein M., Henle P., Hartel M., Evangelopoulos D.S., Bonel H., Kohl S. KSSTA Epub 2014 Mar 21
2 Dynamic Intraligamentary Stabilization (DIS) for treatment of acute anterior cruciate ligament ruptures: case series experience of the first three years. Henle Ph, Roeder Ch., Perler G., Heitkemper S., Eggli St., BMC Musco loskeletal Disorders 2015 16:27
3 Knee joint kinematics after dynamic intraligamentary stabilization: cadaveric study on a novel anterior cruc ate ligament repair technique. Schliemann B., Lenschow S., Domnick Ch., Herbort M., Häberli J., Schulze M., Wähnert D. KSSTA 2015 Feb.
4 Internal test report TDS001236
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