title: Total knee arthroplasty in osteonecrosis.
abstract: Thirty-eight total knee arthroplasties in 36 patients were studied at 4 +/- 2 (mean, +/- SD) years follow-up evaluation. The Hospital for Special Surgery knee score improved from 59 +/- 9 (mean, +/- SD) before surgery to 83 +/- 11 (mean, +/- SD) (p less than 0.0001) at last evaluation. Good or excellent results were achieved in 87%. Implant survivorship at five years was predicted to be 85% using an endpoint of revision, or 68% using an end point of revision for moderate or severe pain. There was one failure for deep infection but no clinical or roentgenographic evidence of loosening.
authors.affiliation: Department of Orthopedics, Mayo Clinic, Rochester, Minnesota 55905.
authors.forename: N R
authors.initials: NR
authors.lastname: Bergman
authors.forename: J A
authors.initials: JA
authors.lastname: Rand
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003952:Diagnostic Imaging; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007719:Knee Joint / Q000502:physiology / Q000601:surgery*; D007720:Knee Prosthesis; D008297:Male; D008875:Middle Aged; D010020:Osteonecrosis / Q000000981:diagnostic imaging / Q000601:surgery*; D010146:Pain; D011474:Prosthesis Design; D011859:Radiography; D016059:Range of Motion, Articular