Constrained Hinged Knee Replacement

Constraint or hinged variety implants are rarely used as a first choice of surgical options.

Constrained hinged knee replacement. They are used when the knee is highly unstable and the ligaments will be unable to support other types of prostheses. Conclusions hinged knee replacement can be considered as a viable alternative to more traditional unconstrained designs in the complex primary setting. Increasing component constraint may reduce instability but doing so also can cause increased forces to be transmitted to fixation and implant interfaces which may lead to premature aseptic loosening. A constrained procedure sometimes referred to as a hinged knee replacement is performed on patients who require all of the ligaments and muscles to be removed.

A modular and constrained knee implant. Constrained implants in total knee replacement. In this case the two components of the knee joint are linked together with a hinged mechanism. Non constrained and partially attached knee replacement procedures are performed on those who still have some usable muscle and ligaments to support the knee.

4 5 constrained or hinged prostheses have tibial and femoral components that are linked together with a hinged mechanism. According to this review although excellent and very good results have been. Constraint is defi. The purpose of this paper is to review the literature concerning the use of condylar constrained knee cck and rotating hinge rh implants in primary and revision cases focusing on the indications and results.