The noiles hinge knee prosthesis with axial rotation

The Noiles total knee prosthesis is a constrained knee which provides free axial rotation of the tibia. Because it does not have a fixed coupling between the femur and the tibia, the prosthesis greatly reduces the transmission of torsional forces to the prosthesis-cement-bone interface. The possibility of prosthetic loosening, sometimes caused by forces generated during full flexion in a conventional hinge prosthesis, is significantly reduced. This knee replacement is indicated in severe rheumatoid and degenerative arthritis of the knee joint, severe instability or failure of a previous prosthesis. The prosthesis provides sturdy mechanical support with high load carrying capability, low friction and low wear. Forty arthritis patients with at least 18 months follow up will be discussed. The average preoperative knee evaluation was 30 points on the knee scale, and the average postoperative knee evaluation was 90 points on the knee scale. Surgical technique, advantages and complications will also be discussed.