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Morton's Disease Shinji Isomoto 1 , Yasuhito Tanaka 2 1Department of Orthopaedic Surgery, Nara Prefecture General Medical Center 2Department of Orthopaedic Surgery, Nara Medical University Keyword: モートン病 , モートン神経腫 , 趾間神経腫 , Morton's disease , Morton's neuroma , Interdigital neuroma , Interdigital neuralgia , metatarsalgia pp.1453-1457
Published Date 2014/12/1
DOI https://doi.org/10.11477/mf.1416200059
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Abstract

Morton's disease refers to neuralgia at the web space of the toes with a pseudo-neuroma. It commonly occurs in the third web space of the foot in middle-aged and older women. The pseudo-neuroma is thought to be a secondary change after entrapment or repeated microtrauma. Patients complain of forefoot pain while walking. Typically, symptoms are caused by tight high-heeled shoes. The physical examination includes palpation of the web spaces and Mulder's test. Weight bearing foot radiographs are used to evaluate the deformity of the foot, especially at metatarsophalangeal (MTP) joints. MRI is useful for differential diagnosis of pseudo-neuroma, MTP joint arthritis, and interdigital bursitis. Conservative treatments are shoe modification, use of orthotic insoles, and injection of corticosteroids and local anesthesia. The injections are useful not only for the treatment but also for diagnosis of Morton's disease. If the local injection is not temporally effective, surgical treatment is not indicated. If the conservative treatment fails, surgical treatment is indicated. The most common surgery is excision of the pseudo-neuroma. The surgery is usually performed using a dorsal approach.


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電子版ISSN 1344-8129 印刷版ISSN 1881-6096 医学書院

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