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Ligamentary structure of the base of the nail
S Guéro1, S Guichard, S R Fraitag
1Laboratoire d'Anatomie, Université Paris Vl, UER, Pitié-Salpétrière, France.
Surgical and Radiologic Anatomy : SRA
|January 1, 1994
Abstract:
The authors report the results of 115 dissections of the base of the distal phalanx of fingers and toes. In 85% of cases including hypoplastic supernumerary digits, there is a connective ligament-like structure. It is a dorsal expansion of the lateral ligament of the distal inter-phalangeal joint arising from the intermediate phalanx and ending in the matrix and the lunula. This ligament may have a role in biomechanical strains on the nail. It can explain some dystrophic nails associated with some malpositioned joints in fingers or toes.