Ingrowing toenails: improving treatment.

Sixty-six patients with ingrowing toenails were randomly assigned to one of two treatment groups and followed up for 16 to 30 months after surgery. In group A 39 nail edges in 32 patients were treated by excision of the nail edge and chemical ablation of germinal matrix edge with 70% aqueous phenol. There were 34 patients in group B, in whom 46 nail edges and germinal matrix edges were surgically excised. In group A recurring symptoms developed in four (10%) nail edges, necessitating further surgery, and asymptomatic spicules developed in seven (18%) nail edges. Two (4%) nails in group B required reoperation and spicules developed in 10 (22%). Both procedures were performed as outpatient surgery, relieved pain and infection, and were acceptable to patients. At an average 2-year follow-up, both procedures yielded comparable results that were superior to those of simple avulsion.