Subtalar arthroereisis and its role in pediatric and adult population.

Subtalar joint arthroereisis is a surgical procedure that addresses symptomatic flexible flatfoot deformities using an extraarticular implant within the sinus tarsi. Three groups of implants have been developed for this procedure: self-locking wedges, axis-altering devices, and impact-blocking devices. The self-locking wedge implants are the focus of this article, relative to its use, limitations, and controversies in the pediatric and adult population.