Arthroscopic Subtalar Arthrodesis: Indications and Technique

Abstract

The subtalar joint is an important joint, playing a major role in eversion and inversion of the foot as it transmits and dissipates forces applied to the calcaneus proximally. Arthrosis of the subtalar joint may be a significant source of pain and dysfunction. It may have a rheumatoid, inflammatory, posttraumatic, or degenerative etiology. In patients with painful subtalar arthrosis with or without progressive deformity, arthrodesis is an accepted form of salvage.¹ If the arthritic subtalar joint is well aligned, a simple subtalar arthrodesis without the use of bone graft has been shown to be effective. Mann and Baumgarten reported a high rate of success by denuding the posterior facet articular surface, feathering the bony surface, and using internal fixation.² This and other open techniques for subtalar arthrodesis may be significantly painful and may require hospitalization for pain control.