Kato Toyoaki, Hoashi Toshihiko
From Yaho Dermatology Clinic, Tokyo, Japan.
Department of Dermatology, Nippon Medical School, Tokyo, Japan.
Plast Reconstr Surg Glob Open. 2024 Aug 16;12(8):e6069. doi: 10.1097/GOX.0000000000006069. eCollection 2024 Aug.
Pincer nail is a common condition characterized by excessive transverse curvature of the nail that causes pain, cosmetic problems, and functional limitation. Surgical treatments include correction of the nail bed and distal phalanges, which have shown good outcomes but are difficult to perform in general clinics because of their high invasion. Conservative treatments require special devices, which may be difficult to keep on hand in general clinics. We report two cases of pincer nails successfully treated by total nail avulsion. The patient in case 1 is a 66-year-old woman. She had a pincer nail on her right third toe that was painful. Total nail avulsion was performed on the nail, and taping was performed after surgery. Three months later, a new flattened nail grew. The curvature index was improved from 2.43 to 1.10. The patient in case 2 is a 68-year-old woman. Total nail avulsion was performed on a pincer nail of the left second toe. Nineteen months later, the nail was flattened and she remained free from pain. The curvature index was improved from 3.62 to 1.32. In both cases, pain was soon relieved by total nail avulsion and there were no complications. Total nail avulsion does not require special devices, can be performed in a short time during outpatient treatment, and is relatively less invasive. It is also easily applied to small nails. Total nail avulsion is an effective treatment for pincer nails on the second and third toes. Future studies are needed to determine if it is equally effective for pincer nails on the first toe.
钳形甲是一种常见病症，其特征为指甲横向过度弯曲，会导致疼痛、美观问题和功能受限。手术治疗包括矫正甲床和远端指骨，虽已显示出良好效果，但由于其侵入性高，在普通诊所难以实施。保守治疗需要特殊装置，在普通诊所可能难以随时配备。我们报告两例通过全甲拔除术成功治疗钳形甲的病例。病例1的患者是一名66岁女性。她右足第三趾患有钳形甲，伴有疼痛。对该指甲进行了全甲拔除术，并在术后进行了包扎。三个月后，新的扁平指甲长出。曲率指数从2.43改善至1.10。病例2的患者是一名68岁女性。对左足第二趾的钳形甲进行了全甲拔除术。19个月后，指甲变平，她不再疼痛。曲率指数从3.62改善至1.32。在这两个病例中，全甲拔除术均很快缓解了疼痛，且未出现并发症。全甲拔除术不需要特殊装置，可在门诊治疗期间短时间内完成，且侵入性相对较小。它也易于应用于小指甲。全甲拔除术是治疗第二和第三趾钳形甲的有效方法。未来需要进行研究以确定其对第一趾钳形甲是否同样有效。
