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Intra-articular hyaluronic acid compared to exercise therapy in osteoarthritis of the ankle. A prospective randomized
V Karatosun1, B Unver, A Ozden
1Department of Orthopedic Surgery, Dokuz Eylul University Hospital, Balcova, Izmir, Turkey. vasfi.karatosun@deu.edu.tr
Objective:
The goal of this study has been to determine whether hyaluronic acid (HA) or exercise therapy can improve functional parameters in patients with osteoarthritis (OA) of the ankle.
Methods:
In a prospective clinical trial, 43 ankles (30 patients) with radiographic Kellgren Lawrence grade III OA were randomized to receive three intra-articular HA injections, with one-week interval of or exercise therapy for six weeks. Patients were evaluated by the American Orthopaedic Foot and Ankle Society (AOFAS) Ankle-Hindfoot Scale and followed-up after 12 months.
Results:
Total AOFAS Ankle-Hindfoot score of OA patients has improved in both groups, varying from 61.6+/-16.8 to 90.1+/-9.7 with HA treatment and from 72.1+/-16.6 to 87.5+/-17.5 using exercise therapy at the end of the trial (p<0.01). There were no statistically significant differences between the groups.
Conclusion:
This prospective randomized trial confirmed that, both HA injections and exercise therapy provide functional improvement. However, larger trials with longer follow-up are necessary for more definite conclusions.
