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Can J Surg. 1999 Dec;42(6):433-9.

A population study in the Province of Ontario of the complications after conversion of hip or knee arthrodesis to total joint replacement.

Author information

1
Institute for Clinical Evaluative Sciences, Toronto. hans@ices.on.ca

Abstract

OBJECTIVE:

To evaluate the complication rates after conversion of hip and knee fusions to total joint replacements in the Province of Ontario.

DESIGN:

A retrospective cohort study.

PATIENTS:

Those who had undergone an elective conversion of a hip or knee fusion to a total joint replacement during fiscal year 1993 through 1996, as captured in the Canadian Institute for Health Information and Ontario Health Insurance Plan databases.

OUTCOME MEASURES:

Inhospital complications and length of initial hospital stay, revision, infection, amputation and repeat fusion rates within 4 years.

RESULTS:

Conversion of hip and knee fusion to total joint arthroplasty was generally performed by high-volume surgeons in high-volume hospital settings. Forty hip and 18 knee replacements involved conversion of a previous fusion. Conversion of a hip fusion was associated with a 10% infection rate, a 10% revision rate and a 5% resection arthroplasty rate due to infection within 4 years of the conversion. Conversion of a knee fusion was associated with an 11% infection rate, and a more than 5% revision rate at 4 years. Over 16% of patients who underwent conversion of a knee fusion required removal of the components (for various reasons) within the first 4 years.

CONCLUSIONS:

There is a high rate of complications after conversion of a hip or knee fusion to a total joint arthroplasty. These issues must be carefully considered and discussed with the patient before any conversion procedure.

PMID:
10593244
PMCID:
PMC3795135
[Indexed for MEDLINE]
Free PMC Article
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