Hinged Knee Joint Replacement

This type of knee replacement is used when the knee is highly unstable and the person s ligaments will not be able to support the other type of knee replacements.

Hinged knee joint replacement.

Development is constantly taking place to design a knee replacement implant that will be both reliable and last a long time. One of the most commonly used type of implant in total knee replacement is a posterior stabilized component. S rom noiles rotating hinge knee system nrh is a clinically proven 1 hinge design for patients with severe soft tissue instability and or bone deficiency. When a knee replacement no longer functions correctly revision surgery is often required.

Constraint or hinged variety implants are rarely used as a first choice of surgical options. Rotating knee replacement implants are a choice for total knee replacement surgery a procedure done to replace worn out cartilage of the knee joint with a metal and plastic implant. The system allows for optimal fit and fill for a wide range of bone deficiencies with the utilization of modular wedges stem extensions and metaphyseal sleeves. The use of hinged implants in primary total knee replacement tkr should be restricted to selected indications and mainly for elderly patients.

Revision surgery isn t something. There are still primary. In this case the two components of the knee joint are linked together with a hinged mechanism. During this procedure a surgeon replaces the old device with a new one.

Collateral ligament insufficiency severe varus or valgus deformit. Gmrs is designed to compensate for significant bone loss and address bone stability in patients who require extensive reconstruction of the hip and or knee joint. Potential indications for a rotating hinge or pure hinge implant in primary tkr include. In this design the cruciate ligaments are removed and parts of the implant substitute for the posterior cruciate ligament pcl.