title: Case reports: symptomatic bilateral talonavicular coalition.
abstract: Congenital talonavicular coalition is reported less frequently than talocalcaneal or calcaneonavicular coalition and represent approximately 1% of all tarsal coalitions. Although reportedly transmitted as an autosomal-dominant disorder, tarsal coalition may be inherited as an autosomal-recessive trait. It has been associated with various orthopaedic anomalies, including symphalangism, clinodactyly, a great toe shorter than the second toe, clubfoot, calcaneonavicular coalition, talocalcaneal coalition, and a ball-and-socket ankle. Patients with talonavicular coalitions are usually asymptomatic and rarely undergo surgical treatment. We report the case of a 24-year-old woman with symptomatic bilateral talonavicular coalitions and previously unreported associated anomalies (nail hypoplasia and metatarsus primus elevatus) and review the relevant literature. The patient underwent surgery (calcaneocuboid joint distraction arthrodesis and a proximal plantar flexion osteotomy with a dorsal open wedge of the first metatarsal). At 1-year followup, she was pain-free with better alignment of both feet and showed radiographic consolidation of the arthrodesis. Although this condition is less likely to be clinically important than other tarsal fusions, it sometimes can be painful enough for the patient to undergo surgery.
authors.affiliation: Institute of Orthopaedics Carlos E Ottolenghi, Hospital Italiano de Buenos Aires, Buenos Aires, Argentina.
authors.forename: Atilio
authors.initials: A
authors.lastname: Migues
authors.forename: Gastón A
authors.initials: GA
authors.lastname: Slullitel
authors.forename: Esteban
authors.initials: E
authors.lastname: Suárez
authors.forename: Hernan L
authors.initials: HL
authors.lastname: Galán
mesh_terms: D000328:Adult; D001174:Arthrodesis; D005260:Female; D005532:Foot Deformities, Congenital / Q000000981:diagnostic imaging / Q000235:genetics / Q000601:surgery*; D005808:Genes, Recessive; D006801:Humans; D010027:Osteotomy; D010375:Pedigree; D011859:Radiography; D013628:Talus / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000601:surgery; D013639:Tarsal Bones / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000601:surgery
references.citation: J Am Podiatr Med Assoc. 1993 Jul;83(7):379-85
references.pmid: 8350249
references.citation: J Am Podiatr Med Assoc. 1995 Jun;85(6):339-41
references.pmid: 7602509
references.citation: Foot Ankle. 1988 Aug;9(1):40-4
references.pmid: 3065163
references.citation: J Bone Joint Surg Am. 1974 Sep;56(6):1273-6
references.pmid: 4436362
references.citation: Clin Orthop Relat Res. 1977 Jul-Aug;(126):225-7
references.pmid: 598123
references.citation: J Pediatr Orthop. 1999 Jul-Aug;19(4):508-10
references.pmid: 10413002
references.citation: Clin Podiatr Med Surg. 1988 Apr;5(2):341-57
references.pmid: 3129173
references.citation: J Am Podiatr Med Assoc. 1989 Apr;79(4):186-9
references.pmid: 2659767
references.citation: Acta Orthop Belg. 1988;54(1):90-1
references.pmid: 3400437
references.citation: Clin Orthop Relat Res. 1983 Dec;(181):28-36
references.pmid: 6641062
references.citation: J Am Podiatr Med Assoc. 1998 May;88(5):223-7
references.pmid: 9610045