Hinged Knee Replacement Picture
Legion hinged knee is an extension of the clinically successful legion total knee system.
Hinged knee replacement picture. The hinge system utilizes the same stems cones patellas and both trabecular metal precoat augments as the nexgen lcck constrained knee system. Surgical technique s rom noiles rotating hinge knee system depuy synthes 9. The level of the joint line and the disparity in the flexion and extension gaps. Nexgen rotating hinge knee the nexgen rh knee features a bone conserving modular hinge design that addresses key issues related to many conventional rotating hinge knee designs.
At full extension 30 degrees of flexion and 90 degrees of flexion the knee is found to be tight laterally and loose medially. Obq07 28 figure a displays the preoperative radiographs of a 67 year old obese diabetic woman undergoing total knee arthroplasty. Because a normal knee joint rotates a small amount the rotating knee replacements are intended to more closely replicate normal knee motion. He presented potential indications for rotating hinged or pure hinged implants in primary total knee arthroplasty tka at the current concepts in joint replacement winter meeting here.
Rotating knee replacement implants. We offer market leading knee replacement implants for partial knee and total knee arthroplasty for primary and revision procedures featuring our cemented and cementless flagship tka solution the triathlon knee system. As a result of the strains and stresses put on the bond this type of knee implant tended to loosen with use. Intra operative evaluation the surgeon should establish two anatomic conditions to facilitate revision arthroplasty.
The rotating knee replacement implants not only swing back and forth like a hinge but the knee can also rotate inwards and outwards a twisting motion. Legion primary revision and hinge share the same bone conserving femoral resections. Uniform sizing of all components from legion primary to revision. Multiple femoral tibial stem and augment sizes.
Following the bone resections a pcl substituting trial implant is placed.