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Evaluation of the Recurrence Rate of Ingrown Toenail After a 45-Second Matrix Cauterization With Phenol
Natália C S Silva1, Adriana Matter1,2, Nilton Di Chiacchio1
1Dermatology Department, Hospital do Servidor Público Municipal de São Paulo. São Paulo, Brazil.
Introduction:
Ingrown toenail is a very common nail disorder, and partial matricectomy by phenolization is considered the most effective treatment technique. However, the contact time of the phenol with the nail matrix remains debatable.
Objective:
To evaluate the recurrence rate of ingrown toenail after partial matricectomy by phenol for 45 seconds.
Methods:
A total of 1,460 surgeries were performed, with a photographic record of 802 pictures for a period of 6 months. The presence of any nail spicule or sign of ingrowth during follow-up was considered a recurrence.
Results:
A total of 802 surgeries were evaluated, with the most affected nails being the right (49.3%) and left (48%) big toes and most frequently the lateral fold (54.5%). The recurrence rate was 0.75% at 3 months and 1.87% at 6 months, and the medial nail fold had a higher recurrence rate than the lateral nail fold.
Conclusion:
Forty-five seconds of contact time of 88% phenol with the nail matrix was enough and effective, resulting in low recurrence rates. Prospective studies are needed to better assess postoperative morbidity.
