Why are total knee arthroplasties failing today?

Peter F. Sharkey, William J. Hozack, Richard H. Rothman, Shani Shastri, Sidney M. Jacoby

Research output: Contribution to journalArticle

920 Citations (Scopus)

Abstract

The incidence of failure after knee replacement is low, yet it has been reported that more than 22,000 knee replacements are revised yearly. The purpose of the current study was to determine current mechanisms of failure of total knee arthroplasties. A retrospective review was done on all patients who had revision total knee arthroplasty during a 3-year period (September 1997-October 2000) at one institution. The preoperative evaluation in conjunction with radiographs, laboratory data, and intraoperative findings were used to determine causes of failure. Two hundred twelve surgeries were done on 203 patients (nine patients had bilateral surgeries). The reasons for failure listed in order of prevalence among the patients in this study include polyethylene wear, aseptic loosening, instability, infection, arthrofibrosis, malalignment or malposition, deficient extensor mechanism, avascular necrosis in the patella, periprosthetic fracture, and isolated patellar resurfacing. The cases reviewed included patients who had revision surgery within 9 days to 28 years (average, 3.7 years) after the previous surgery. More than half of the revisions in this group of patients were done less than 2 years after the index operation. Fifty percent of early revision total knee arthroplasties in this series were related to instability, malalignment or malposition, and failure of fixation.

Original languageEnglish (US)
Pages (from-to)7-13
Number of pages7
JournalClinical Orthopaedics and Related Research
Issue number404
StatePublished - Nov 1 2002

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Knee Replacement Arthroplasties
Knee
Periprosthetic Fractures
Patella
Polyethylene
Reoperation
Necrosis
Incidence
Infection

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Surgery

Cite this

Sharkey, P. F., Hozack, W. J., Rothman, R. H., Shastri, S., & Jacoby, S. M. (2002). Why are total knee arthroplasties failing today? Clinical Orthopaedics and Related Research, (404), 7-13.

Why are total knee arthroplasties failing today? / Sharkey, Peter F.; Hozack, William J.; Rothman, Richard H.; Shastri, Shani; Jacoby, Sidney M.

In: Clinical Orthopaedics and Related Research, No. 404, 01.11.2002, p. 7-13.

Research output: Contribution to journalArticle

Sharkey, PF, Hozack, WJ, Rothman, RH, Shastri, S & Jacoby, SM 2002, 'Why are total knee arthroplasties failing today?', Clinical Orthopaedics and Related Research, no. 404, pp. 7-13.
Sharkey PF, Hozack WJ, Rothman RH, Shastri S, Jacoby SM. Why are total knee arthroplasties failing today? Clinical Orthopaedics and Related Research. 2002 Nov 1;(404):7-13.
Sharkey, Peter F. ; Hozack, William J. ; Rothman, Richard H. ; Shastri, Shani ; Jacoby, Sidney M. / Why are total knee arthroplasties failing today?. In: Clinical Orthopaedics and Related Research. 2002 ; No. 404. pp. 7-13.
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