Total knee replacement revision surgery using a rotating hinge knee system!
A follow-up of the previous case.
During a total knee replacement, the knee joint is replaced with an implant, or prosthesis, made of metal and plastic components. Although very successful, over time problems such as implant wear and loosening may require a revision procedure to replace the components.
The implant may be unstable due to weakened bone (as a result of osteolysis) around the femoral, tibial, or patellar components, causing severe pain.
Infection is also a potential complication, as well as injured ligaments that cause loosening from the underlying bone.
Development of periprosthetic osteolysis can be linked to the long-term influence of mechanical forces on both, the joint replacement device and the bone bed. Under ideal conditions though, the interface between the implant and bone bed should withstand repeated mechanical stresses associated with activities of daily living.
Photos by @arkandarman and