Article: PDF OnlyTotal Knee Arthroplasty in OsteonecrosisBERGMAN, NEIL R. F.R.A.C.S.; RAND, JAMES A. M.D. Author Information From the Department of Orthopedics, Mayo Clinic/Mayo Foundation, Rochester, Minnesota. Clinical Orthopaedics and Related Research 273():p 77-82, December 1991. Buy 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 < 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 end-point 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. © Lippincott-Raven Publishers.