Isolated hexadactylia: A rare case of central polydactyly of the foot期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Isolated hexadactylia: A rare case of central polydactyly of the foot

Affiliation:	1. Department of Burns and Plastic Surgery, All India Institute of Medical Sciences, Raipur, Chhattisgarh, 492099, India;2. Department of Pediatric Surgery, All India Institute of Medical Sciences, Raipur, Chhattisgarh, 492099, India;3. Department of Orthopedic Surgery, All India Institute of Medical Sciences, Raipur, Chhattisgarh, 492099, India;1. Assistant Professor of Orthopaedics, Department of Emergency Medicine, All India Institute of Medical Sciences, New Delhi, India;2. Professor, Department of Orthopaedics, All India Institute of Medical Sciences, New Delhi, India;3. Additional Professor, Department of Orthopaedics, All India Institute of Medical Sciences, New Delhi, India;4. Orthopaedic Surgeon, Department of Orthopaedics, Civil Service Hospital, Kathmandu, Nepal;1. Department of Orthopaedics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan;2. Department of Rehabilitation Medicine, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, 602-8566, Japan;1. Institute of Animal Reproduction and Food Research of Polish Academy of Sciences, Tuwima 10, 10-748 Olsztyn, Poland;2. Department of Physiology, University of Turku, 20520 Turku, Finland;3. Faculty of Natural Sciences and Technology, Åbo Akademi University, Turku, Finland

Abstract:	BackgroundCentral polydactyly of foot is uncommon form of polydactyly but it usually causes intermetatarsal widening because of metatarsal bifurcation. Central polydactyly associated with T shaped bifurcation of metatarsal in vertical plane has not been reported yet.CaseWe present a 4 year male child with extra toe on the dorsal aspect of right foot with complains of difficulty in wearing footwear and poor cosmesis. The extra digit was fully developed with bifurcation of 2^nd metatarsal bone proximal to the head without any intermetatarsal widening. The angular deviation was 45° to the longitudinal axis of foot and in a plane vertical to the transverse arch of foot. The child was operated with excision of extra toe without any residual bony deformity.ConclusionThe central polydactyly is rare type of polydactyly of foot. Central polydactyly with metatarsal extension causing intermetatarsal widening has been well described entity. But the previous classifications need to be modified to include central polydactyly with vertical oriented T bifurcation of metatarsal bone without intermetatarsal widening.

Keywords:	Polydactyly foot Central polydactyly foot Hexadactylia foot Supernumerary toe
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