The Importance of Constraint and Modularity in a Prosthesis

A pros thesis is defined as the ability of a prosthesis to provide varous valgus and flexion extension stability in the face of ligamentos laxity or bone loss. A crucet retaining design depends on an intact piecel to provide stability in flection. Cemented has proven survivorship and function, while cement list has a tribecular surface that allows for long term biologic fixation.