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OUTCOMES AND PATIENT SATISFACTION AFTER HINDFOOT ARTHRODESIS FOR RHEUMATOID ARTHRITIS.



Abstract

Introduction: Foot and ankle involvement in rheumatoid arthritis is common. Pain and disability secondary to planovalgus deformity and the arthritic process are difficult to control with conservative measures. Arthroplasty of the ankle is associated with high failure rates and does not completely correct the deformity. Arthrodesis of the hindfoot is a good option to alleviate pain, correct the deformity and improve functional ability, however has not been well reported in the literature.

Aims: To determine change in quantitative measures of patient health, pain and functional ability following hindfoot arthrodesis in patients with rheumatoid arthritis, and to assess patient satisfaction postoperatively.

Methods: 24 consecutive additive hindfoot arthrodeses were performed by a single surgeon on 22 patients with rheumatoid arthritis. Patients were assessed preoperatively using the Short Form-12 Health Survey (SF-12), Manchester-Oxford Foot Questionnaire (MOXFQ) and pain scores. These assessments were repeated at 6 and 12 months postoperatively, with an additional satisfaction questionnaire.

Results: There was a marked and sustained improvement in the post-operative SF-12, MOXFQ and pain scores, with 71% of patients reporting no pain at 12 months. 19 out of 22 patients reported being satisfied or very satisfied with the operation. Bony union was achieved in all patients, both on clinical and radiological criteria. Most patients returned to normal footwear, some with slight modification to facilitate a more normal gait cycle.

Conclusions: This study shows that additive hindfoot arthrodesis can be a very effective procedure in the management of moderate to severe ankle and hind-foot disease in rheumatoid arthritis. Patients should be counselled regarding the considerable recovery period; however significant improvement in the patient’s general health, foot function and pain can be expected.

Correspondence should be addressed to: EFORT Central Office, Technoparkstrasse 1, CH – 8005 Zürich, Switzerland. Tel: +41 44 448 44 00; Email: office@efort.org

Author: Nicholas Ohly, United Kingdom

E-mail: nickohly@gmail.com