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Quick and easy correction of a symptomatic pincer nail using a shape memory alloy device
Jin Yong Kim1, Se Young Park, Seon Pil Jin
1Department of Dermatology, Seoul National University Boramae Hospital, Seoul, Korea.
A novel shape memory alloy device rapidly and effectively corrects symptomatic pincer nail deformity, improving pain and nail shape. This treatment is safe, with minimal recurrence and no identified complications.
Area of Science:
- Orthopedics
- Biomaterials Engineering
Background:
- Pincer nail deformity is characterized by increasing transverse curvature.
- A novel shape memory alloy device offers a new treatment approach.
Purpose of the Study:
- Evaluate the treatment outcomes and safety of a shape memory alloy device for pincer nail deformity.
Main Methods:
- Retrospective analysis of 21 great toe pincer nail cases in 14 patients.
- Assessed subjective (pain, inconvenience, global assessment) and objective (transverse angle, width index) parameters.
Main Results:
- Significant improvements in all parameters observed by day 1 and sustained for 12 weeks.
- Pain and inconvenience scores decreased, while global assessment, transverse angle, and width index improved.
- Two cases (9.5%) showed mild recurrence; no complications were reported.
Conclusions:
- Shape memory alloy device is effective and safe for rapid correction of symptomatic pincer nail deformity.
- Demonstrates significant patient-reported and objective improvements.
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