Minimum 4-year follow-up of the PCA total knee arthroplasty in rheumatoid patients

Frank R. Ebert, Kenneth A. Krackow, Dennis W. Lennox, David S. Hungerford

Research output: Contribution to journalArticlepeer-review

18 Scopus citations


One hundred twenty-one consecutive nonrandomized primary total knee arthroplasties in 94 patients were performed between 1980 and 1984 using the Porous-Coated Anatomic prosthesis in patients with a diagnosis of severe rheumatoid arthritis. Of the 94 patients, 81 patients were able to be followed for more than 4 years, with the remaining 13 dying from unrelated causes prior to the 48-month follow-up. Of those arthroplasties with 48-month follow-up, 55 were uncemented and 26 were cemented. An 81% good to excellent result was seen for the cemented group and a 91% good to excellent result for the uncemented group. The postoperative arc of motion for the cemented group was 94°, with the postoperative arc of motion in the uncemented group being 102°. In evaluation of component interfaces, there were almost no lucencies seen among the femoral group, with no component failures in either group. Thirty-six percent of the uncemented group developed nonprogressive radiolucent lines along the tibial tray; 97% of these radiolucencies were less than 1 mm. Complications in the cemented group included a revision of one patellar and one tibial component for component loosening. In the uncemented group, complications included one case of deep sepsis following an intra-articular injection, loosening of two patellar components requiring revision, and loosening of two tibial components requiring revision.

Original languageEnglish (US)
Pages (from-to)101-108
Number of pages8
JournalThe Journal of arthroplasty
Issue number1
StatePublished - Mar 1992


  • total knee arthroplasty

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine


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