Knee arthrodesis with the Sheffield external ring fixator: fusion in 6 of 10 consecutive patients
- PMID: 17611852
- DOI: 10.1080/17453670710013951
Knee arthrodesis with the Sheffield external ring fixator: fusion in 6 of 10 consecutive patients
Abstract
Background: Knee arthrodesis with external fixation (XF) is a possible salvage procedure for infected total knee arthroplasties (TKA). We report the outcome in 10 patients who underwent arthrodesis with the Sheffield Ring Fixator.
Patients and methods: The patients had primary arthrosis in 8 cases; 2 cases were due to rheumatoid arthritis and sclerodermia. The mean time between the primary TKA and arthrodesis was 6 (0.5-14) years. The average age at arthrodesis was 69 years. The average follow-up period was 10 months.
Results: Stable fusion was obtained in 6 patients after a mean XF time of 3.6 (2-4) months. 1 patient was referred to another hospital because of nonunion. This patient showed fusion with intramedullary nailing after 7 months. 3 nonunion patients required permanent bracing. 7 patients had pin tract infections. Infections healed in all patients.
Interpretation: The Sheffield Ring Fixator gives an acceptable fusion rate for arthrodesis in the infected TKA, with limited complications.
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