A Clinical Study of 35 Cases of Pincer Nails
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초록
Background: Pincer nail is a nail deformity characterized by transverse overcurvature of the nail plate. Pincer nail can affect a patient’s quality of life due to its chronic, recurrent course; however, there have been no clinical studies on the pincer nail condition in Korean patients. Objective: The purpose of this study was to characterize the clinical findings and treatment of pincer nail. In addition, possible etiological factors were considered, and treatment efficacy was evaluated. Methods: The medical records and clinical photographs of 35 patients (12 males, 23 females) who were diagnosed with pincer nail between August 1, 2005 and July 31, 2009 were studied. Results: Patient age ranged from 10to 77 (52.09±17.26) years, and there was a predominance of female (23 out of 35 patients, F：M=2：1). The mean duration of the disorder was 7.45 years (range 0.25∼40);85% had pincer nail for at least 1 year. In addition, 40% had a history of previous treatment and recurrence. There were 82.8% patients with the common type of pincer nails. The most commonly involved nails were both great toenails. Among 35 patients, nail grinding was started in 30 patients,and 25 patients showed clinical improvement with nail grinding. The width index increased and the height index decreased after treatment. The mean follow up period was 8.42 months (range 1∼27), and 7 patients showed recurrence after 8.8 months (range 2∼20). Among 35 patients, 5patients were treated with nail extraction with matricectomy,and the symptoms resolved immediately. The mean follow up period was 7.6 months (range 0∼19), and recurrence was not observed. Onychomycosis was also present in 37.1% of patients, and itraconazole pulse therapy for 3 months was added. Conclusion: The results of this study demonstrate the clinical features of pincer nail in Korean patients. The findings show that the common type of pincer nail was most common, and nail grinding as a conservative treatment greatly improved pincer nails despite a risk of recurrence. When onychomycosis was also present, oral antifungal therapy added to nail grinding resulted in a more rapid change in nail thickness and clinical improvement. (Ann Dermatol 23(4) 417∼423, 2011)
Abstract
Background: Pincer nail is a nail deformity characterized by transverse overcurvature of the nail plate. Pincer nail can affect a patient’s quality of life due to its chronic, recurrent course; however, there have been no clinical studies on the pincer nail condition in Korean patients. Objective: The purpose of this study was to characterize the clinical findings and treatment of pincer nail. In addition, possible etiological factors were considered, and treatment efficacy was evaluated. Methods: The medical records and clinical photographs of 35 patients (12 males, 23 females) who were diagnosed with pincer nail between August 1, 2005 and July 31, 2009 were studied. Results: Patient age ranged from 10to 77 (52.09±17.26) years, and there was a predominance of female (23 out of 35 patients, F：M=2：1). The mean duration of the disorder was 7.45 years (range 0.25∼40);85% had pincer nail for at least 1 year. In addition, 40% had a history of previous treatment and recurrence. There were 82.8% patients with the common type of pincer nails. The most commonly involved nails were both great toenails. Among 35 patients, nail grinding was started in 30 patients,and 25 patients showed clinical improvement with nail grinding. The width index increased and the height index decreased after treatment. The mean follow up period was 8.42 months (range 1∼27), and 7 patients showed recurrence after 8.8 months (range 2∼20). Among 35 patients, 5patients were treated with nail extraction with matricectomy,and the symptoms resolved immediately. The mean follow up period was 7.6 months (range 0∼19), and recurrence was not observed. Onychomycosis was also present in 37.1% of patients, and itraconazole pulse therapy for 3 months was added. Conclusion: The results of this study demonstrate the clinical features of pincer nail in Korean patients. The findings show that the common type of pincer nail was most common, and nail grinding as a conservative treatment greatly improved pincer nails despite a risk of recurrence. When onychomycosis was also present, oral antifungal therapy added to nail grinding resulted in a more rapid change in nail thickness and clinical improvement. (Ann Dermatol 23(4) 417∼423, 2011)
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