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  • Title: Botulinum toxin type A in chronic plantar fasciitis: clinical effects one year after injection.
    Author: Díaz-Llopis IV, Gómez-Gallego D, Mondéjar-Gómez FJ, López-García A, Climent-Barberá JM, Rodríguez-Ruiz CM.
    Journal: Clin Rehabil; 2013 Aug; 27(8):681-5. PubMed ID: 23411793.
    Abstract:
    OBJECTIVE: To determine whether the efficacy of botulinum toxin type A in chronic plantar fasciitis was maintained for more than six months after treatment. DESIGN: Observational follow-up study. SUBJECTS: Twenty-four patients who received botulinum toxin type A injection in a previous randomized study of chronic plantar fasciitis (active treatment group) and who presented a benefit one month after treatment. METHODS: A visual analogue scale for pain and the Foot Health Status Questionnaire were used to re-evaluate results 12 months after the botulinum toxin injection. No further injections of botulinum toxin had been administered during the follow-up period. Patients were also asked to give a subjective assessment of treatment outcome. RESULTS: At 12 months, compared with the six-month evaluation, there was a further improvement in foot pain measured using the visual analogue scale, though this did not reach significance (1.78 at 6 months versus 1.22 at 12 months; P = 0.142). However, there were significant improvements in two domains of Foot Health Status Questionnaire: foot pain (91.11 at 6 months versus 80.00 at 12 months; P = 0.001) and foot function (96.19 at 6 months versus 89.38 at 12 months; P = 0.047). There was a small, non-significant deterioration in the shoe and foot health domains. Satisfaction with the outcome was good or very good in the large majority of patients. CONCLUSIONS: In patients with chronic plantar fasciitis, the positive effect detected six months after treatment with botulinum toxin type A was maintained at 12 months and there was a further improvement in pain and foot function.
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