Abstract
The most commonly used treatment for subungual hematomas is nail trephination, a technique that is not standardized and that poorly controls for trephination depth. The objective was to test the safety and tolerance of a new device for nail trephination that uses innovative "mesoscission" or microcutting technology to create holes of specific depths in the nail plate without penetrating the nail bed. Fourteen adult subjects with healthy toenails had five holes drilled in a random single-blind fashion at different test settings into their right great toenail with this device and were assessed for pain and pressure tolerance as well as perioperative and postoperative complications. Nail trephination with this device in this small pilot study was controlled and well tolerated. The study population was small (n = 14) and the follow-up evaluation relied on patient self-report, which is not always reliable. The follow-up period was only 1 week and did not allow for evaluation of permanent nail plate deformity. Mesoscission may be a controlled and practical alternative to traditional nail trephining methods.
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