Constraints in total knee arthroplasty: current status and review of literature

Abstract

Appropriate selection of prosthesis is critical for success of total knee arthroplasty. It is a daunting task of arthroplasty surgeon to choose from a wide array of implant design for a given situation to confer optimal stability, which translates into satisfactory outcome. Contemporary evolution of prosthetic design with various levels of constraints has revolutionized the approach to total knee arthroplasty. This paper deals with the succinct review of the level of constrained prosthesis available for knee arthroplasty.

Analysis of Biomechanical Differences Between Condylar Constrained Knee and Rotating Hinged Implants: A Numerical Study

“…Indeed, different levels of constraint for TKA can be considered for revision surgeries because both semiconstrained and hinged implants guarantee more stability than primary TKA implants. The selection of the correct constraint level is therefore of paramount importance in this context [7,8].…”