Posterior subtalar joint arthrography. A useful tool in the diagnosis of hindfoot disorders.
Obscure hindfoot disorders are often classified under the heading of sinus tarsi syndrome (STS). The diagnosis of STS is based upon subjective symptoms: tenderness over the lateral aperture of the sinus tarsi and hindfoot instability. Arthrography of the posterior subtalar joint is an objective parameter, identifying peri- or intraarticular pathology as the cause of symptoms. In 27 patients with STS, the pathologic arthrographic findings include less-marked microrecesses in the sinus tarsi region, ganglions at the anterior aspect of the subtalar joint, retraction of the joint recesses, a smooth and rounded appearance of the capsule, and a frozen subtalar joint. Through analysis of these films, the appropriate therapeutic approach can be outlined; infiltrations into the sinus tarsi itself, intraarticular corticosteroid injections, or subtalar arthrodesis for resistant cases are the procedures of choice. In the authors' experience, surgical curettage of the sinus tarsi has no place in the treatment of STS.[1]References
- Posterior subtalar joint arthrography. A useful tool in the diagnosis of hindfoot disorders. Goossens, M., De Stoop, N., Claessens, H., Van der Straeten, C. Clin. Orthop. Relat. Res. (1989) [Pubmed]
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