Abstract
Background
The central polydactyly of the foot is a rare congenital disorder, and its characteristics
are not well known. This study aims to investigate its disease concept.
Methods
We obtained the medical records of patients who were treated surgically for central
polydactyly of the foot at our hospital during a 32-year period from 1990 to 2021
retrospectively. We compared our clinical data with other case series reports to investigate
the characteristics of this disorder further.
Results
There were 22 patients (13 males and 9 females) included in our case series. Unilateral
and bilateral involvements were observed in 19 (right side: 6 patients; left side:
13 patients) and 3 patients, respectively. The second toe is the commonest duplicated
toe (observed in 19 toes). 19 patients had distally duplicated toes (with normal metatarsal
bone). Proximally duplicated toes were observed in only two patients.
Conclusions
The incidence of central polydactyly of the foot is almost equal among male and female,
and bilateral involvements are few. As this abnormality is rarely reported, further
investigations are needed to clarify the clinical presentation of central polydactyly
of the foot.
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Article info
Publication history
Published online: December 15, 2021
Accepted:
November 15,
2021
Received in revised form:
September 30,
2021
Received:
June 17,
2021
Identification
Copyright
© 2021 The Japanese Orthopaedic Association. Published by Elsevier B.V. All rights reserved.
