title: Subtalar coalitions in the adult.
abstract: Tarsal coalitions, while relatively uncommon, are typically identified in adult patients during an evaluation for ankle instability, sinus tarsus pain, and/or pes planovalgus. The true incidence of tarsal coalition is unknown with estimates ranging from 1% to 12% of the overall population. The most common area of involvement of the subtalar joint is the middle facet, and heightened awareness should be present in adult patients with limited motion of the subtalar joint. Standard radiographic imaging, to include a Harris heel view, is recommended initially, although computerized tomography scan and MRI are often necessary to confirm the diagnosis.
authors.affiliation: Orthopaedic Foot and Ankle Fellowship Program, University of Pittsburgh, Pittsburgh, PA, USA.
authors.forename: James F
authors.initials: JF
authors.lastname: Flynn
authors.affiliation: Orthopaedic Foot and Ankle Fellowship Program, University of Pittsburgh, Pittsburgh, PA, USA. Electronic address: wukichdk@upmc.edu.
authors.forename: Dane K
authors.initials: DK
authors.lastname: Wukich
authors.affiliation: Orthopaedic Foot and Ankle Fellowship Program, University of Pittsburgh, Pittsburgh, PA, USA.
authors.forename: Stephen F
authors.initials: SF
authors.lastname: Conti
authors.affiliation: Orthopaedic Foot and Ankle Fellowship Program, University of Pittsburgh, Pittsburgh, PA, USA.
authors.forename: Carl T
authors.initials: CT
authors.lastname: Hasselman
authors.affiliation: Orthopaedic Foot and Ankle Fellowship Program, University of Pittsburgh, Pittsburgh, PA, USA.
authors.forename: Macalus V
authors.initials: MV
authors.lastname: Hogan
authors.affiliation: Orthopaedic Foot and Ankle Fellowship Program, University of Pittsburgh, Pittsburgh, PA, USA.
authors.forename: Alex J
authors.initials: AJ
authors.lastname: Kline
mesh_terms: D000328:Adult; D000367:Age Factors; D005530:Foot Deformities / Q000175:diagnosis* / Q000209:etiology / Q000628:therapy*; D006801:Humans; D013380:Subtalar Joint
keywords: Adults; Coalition; Flatfeet; Hindfoot; Subtalar; Valgus