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Trichloroacetic acid matricectomy and aluminum splint fixation for the treatment of pincer nails.

Pincer nail is a rare disease, presenting with severe pain on the distal nail bed caused by soft tissue ischemia. It is characterized by the presence of an excessively curved and distorted nail across the transverse dimension, particularly in the distal part of the nail plate. A variety of therapeutic modalities have been implemented for treatment, with limited efficacy. Some treatments have successfully managed these conditions by attaching an aluminum splint bar under the surface of the nail plate, but inserting a thick, rigid aluminum bar through the interspace between the nail plate and nail bed is not easy.