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EARLY RESULTS WITH SUBTALAR PROSTHESIS FOR PES PLANUS



Abstract

This paper introduces a relatively new treatment of pes planus.

Over three years we have treated 21 patients with idiopathic or acquired pes planus by inserting a cylindrical polyethylene prosthesis in the subtalar sinus tarsi to limit subtalar movements. After a two to four-week period in postoperative surgical plaster, patients become fully weight-bearing, with immediate correction of alignment of the pes planus.

The polyethylene has excellent wear properties and we have encountered no wear or particular reactions. We have had no bone resorption or infections, and few and minor complications. Correction of the deformity is maintained even after removal of the prosthesis.

The advantages of immediate correction of the deformity and early full weight-bearing make this simple and effective procedure an attractive alternative to conservative treatment, osteotomy and subtalar fusion in selected cases.

The abstracts were prepared by Professor M. B. E. Sweet. Correspondence should be addressed to him at The Department of Orthopaedic Surgery, Medical School, University of Witwatersrand, 7 York Road, Parktown, Johannesburg, 2193 South Africa