[Pathological fragmentation of the sesamoid bone of the index due to repetitive micro trauma: a case report and review of the literature].

Pathology of the sesamoid bones have been rarely described in the literature especially those of the index. We present the case of a 45 years old amateur tennis player who presented with pain on the radial border of the index finger at the level of the metacarpophalangeal joint. The clinical examination and the operative findings allow us to conclude that the symptoms were due to tendinitis of the flexors of the index associated with fracture of the sesamoid and cartilaginous degenerative changes. We also present a review of the literature.