The authors have indicated no significant interest with commercial supporters.
Quick and Easy Correction of a Symptomatic Pincer Nail Using a Shape Memory Alloy Device
Article first published online: 1 OCT 2013
© 2013 by the American Society for Dermatologic Surgery, Inc. Published by Wiley Periodicals, Inc.
Volume 39, Issue 10, pages 1520–1526, October 2013
How to Cite
Kim, J. Y., Park, S. Y., Jin, S. P., Yoon, H. S., Cho, S. and Park, H. S. (2013), Quick and Easy Correction of a Symptomatic Pincer Nail Using a Shape Memory Alloy Device. Dermatologic Surgery, 39: 1520–1526. doi: 10.1111/dsu.12312
- Issue published online: 1 OCT 2013
- Article first published online: 1 OCT 2013
Pincer nails are characterized by the transverse curvature increasing from the proximal to the distal aspect along the longitudinal axis. A novel treatment technique using a shape memory alloy device was recently introduced.
To determine the treatment outcomes and safety of a shape memory alloy device.
Methods and Materials
This was a retrospective analysis of 21 cases of pincer nail of the great toe in 14 patients. Subjective indices (pain, inconvenience, global assessment scores) and objective parameters (transverse angle, width index) on days 0 (D0) and 1 (D1) and weeks 2 (W2) and 12 (W12) were investigated.
All parameters started to show significant improvement on D1. From D0 to D1, pain score fell from 3.6 ± 1.0 to 1.5 ± 0.7, inconvenience score fell from 3.3 ± 1.0 to 1.5 ± 0.7, global assessment score increased from 1.5 ± 0.7 to 2.5 ± 0.7, transverse angle improved from 86.4 ± 27.7° to 114.7 ± 21.6°, and width index improved from 67.6 ± 13.1% to 89.0 ± 9.7%. These effects were consistent during 12 weeks of follow-up. Two cases (9.5%) recurred, but symptoms were less severe than before. No complication was identified.
A shape memory alloy device was an effective and safe way to rapidly correct symptomatic pincer nail deformity.