Tarsal coalition in an adult with cavovarus feet.

Symptomatic tarsal coalition is often considered to be synonymous with peroneal spastic flatfoot. The association of the cavovarus foot type with tarsal coalition is less well established and has been described only in children. This article describes a case of an adult female with symptomatic cavovarus feet with talocalcaneal coalition. The authors theorize about the pathology of muscle spasm and pain in patients with this condition.