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A Postaxial Polydactyly with a Partial Duplication of the Fifth Metatarsal Without a Supernumerary Digit

Is Excision of the Duplicated Metatarsal Necessary?

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  • 1 Department of Orthopaedic Surgery, Korea University College of Medicine, Ansan Hospital, Ansan, Republic of Korea.
  • | 2 Department of Orthopaedic Surgery, Veterans Health Service Medical Center, Seoul, Republic of Korea.
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Postaxial polydactyly of the foot is one of the most common congenital malformations. Only a few cases of postaxial polydactyly with a partial duplication of the fifth metatarsal without a supernumerary digit have been reported, and both metatarsal heads were united to form a common joint with the proximal phalanx in all of those cases. We present a rare case of postaxial polydactyly with a partial duplication of the fifth metatarsal characterized by dual metatarsal heads and an extra proximal phalanx bud, without a supernumerary digit.

Corresponding author: Taik Seon Kim, MD, Department of Orthopaedic Surgery, Veterans Health Service Medical Center, 61, Jinhwangdoro-gil, Kangdong-gu, Seoul, 134-060, Republic of Korea. (E-mail: manbalove@naver.com)