• Eleni E Drakonaki, James S B Kho, Robert J Sharp, and Simon J Ostlere.
• Department of Radiology, Nuffield Orthopaedic Centre NHS Trust, Windmill Road, Headington, Oxford, OX3 7LD, UK. drakonaki@yahoo.gr
• Skeletal Radiol. 2011 Aug 1; 40 (8): 1001-6.

ObjectiveTo examine the efficacy of ultrasound (US)-guided injections for midfoot joint degenerative changes.Materials And MethodsThe US images and radiographs of 63 patients with midfoot joint degenerative changes were retrospectively reviewed. In those patients who had US-guided intra-articular steroid injection, the response to the injection was recorded by reviewing the 2-week pain diaries and clinical notes. Partial or complete pain relief was defined as a positive response and the same or increased level of pain as a negative response to the injection.ResultsFifty-nine (59/63, 93.6%) patients with midfoot joint degenerative changes received US-guided injection. The majority of patients had a positive response up to 3 months post-injection (78.4% still experiencing pain relief at 2 weeks, 57.5% at 3 months and fewer than 15% of patients further than 3 months post-injection). The number of positive therapeutic responses did not differ significantly between patients with diagnostic and non-diagnostic response (p = 0.2636).ConclusionsUS-guided intra-articular injections for midfoot degenerative changes can have a good therapeutic result in the majority of patients up to 3 months post-injection. Therapeutic response cannot be predicted by a positive diagnostic response.

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