Polydactyly Foot
Objectives- Describe common variants of polydactyly of the foot
- Discuss management of polydactyly of the foot
Discussion point
- Is polydactyly of the foot genetically related to polydactyly of the hand?
Discussion
Polydactyly of the foot has a different genetic basis than polydactyly of the hand; foot polydactyly is less frequently bilateral, and lower preference for the left side. It is less common than polydactyly of the hand. It is most often postaxial, and often associated with syndactyly of the fourth and fifth toes. Polydactyly of the foot is less commonly associated with other syndromes or anomalies; the most common syndromic associations are with Trisomy 13, Meckel, and Down syndrome. Down syndrome is associated with preaxial polydactyly.
Management is usually not complicated, excision of the most lateral ray in postaxial polydactyly or the most medial in preaxial polydactyly is performed where possible. Medial polydactyly can sometimes require ingenuity in devising a treatment plan. Venn-Watson's review is still the most complete analysis of polydactyly of the foot.
References
- Castilla EE, da Graca Dutra M, Lugarinho da Fonseca R, Paz JE. Hand and foot postaxial polydactyly: two different traits. American Journal of Medical Genetics 1997; 73( 1): 48-54.
- Castilla EE, Lugarinho R, da Graca Dutra M, Salgado LJ. Associated anomalies in individuals with polydactyly. American Journal of Medical Genetics 1998; 80( 5): 459-65.
- Kojima T, Tomonari H, Hirase Y. A combination surgical method for preaxial polydactyly of the foot. Annals of Plastic Surgery 1993; 31( 4): 364-7; discussion 7-8.
- Nakamura K, Ohara K, Ohta E. A new surgical technique for postaxial polydactyly of the foot. Plastic & Reconstructive Surgery 1996; 97( 1): 133-8.
- Venn-Watson EA. Problems in polydactyly of the foot. Orthopedic Clinics of North America 1976; 7( 4): 909-27.
May 16-19, 2012 in Denver, CO
