抄録
Four Supracondylar fractures after prosthetic knee arthroplasties were surgically treated between 1988 and 1990. Three of the patients had rheumatoid arthritis and one osteoarthritis. The cause of each fracture was minor trauma. The mean duration between arthroplasty and the fracture was about 5 years. All cases were treated by open reduction and internal fixation using a T plate and a May plate.
Good bone union was obtained and there were knee scores including ROM which were similar to those before operation. The results of osteoporosis measurements such as radial BMC/BW and quantitative computed tomography showed the predisposing factor of this type of fracture to be associated with severe osteoporosis. We have found that the patient with a supracondylar fracture following prosthetic knee arthroplasty could be adequately managed by secure internal fixation and early rehabilitation.