A custom-made prosthesis for the treatment of supracondylar femoral fractures after total knee arthroplasty: report of four cases.

Four supracondylar femoral fractures following total knee arthroplasty, two because of intraoperative notching of the anterior femoral cortex and two because of osteoporosis, were revised using a custom-made prosthesis with femoral condyle section. At 1-6 year follow-up (median 3 years) after the revision, all patients had an excellent clinical result, although 2 had a prolonged rehabilitation period because of severe osteoporosis. At roentgenographic examination, no signs of loosening of the prostheses at the cement-bone interface were present.