[Radiological aspects of knee prostheses (author's transl)]

The radiological evaluation of knee prostheses has its own criteria. Exact implantation of prosthetic components, correction of axial deviations between femure and tibia, bone density near to the prosthesis, width of the radiolucent zone, and the degree of femoropatellar arthrosis are important features. The analysis of 47 knee prostheses showed a less periarticular soft tissue calcifications than in hip prosthesis. Fracture of palacos is not rare and may lead to intraarticular loose bodie's.