| Etiologic Study of Tarsal Tunnel Syndrome byOperative and MRI Findings |
| Min-Ki Son, Hong-Ki Park, and Yeong-Bae Lee |
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| Copyright © 2011 The Korean Society of Clinical Neurophysiology |
| This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium,
provided the original work is properly cited. |
| ABSTRACT |
Background: Tarsal tunnel syndrome (TTS) is an entrapment neuropathy that occurs in the ankle. Previous studies reportedthat this disease was due to physiologic factors and structural lesions in the ankle or foot. The authors investigated the causativefactors of TTS and their frequency via operative findings. The diagnostic value of MRI was also evaluated based onthe concordance between the operative findings and the MRI findings.
Methods: This study was performed in retrospectiveby using medical record of the patients who underwent operations with TTS from August 2003 to May 2010. Physical examination,nerve conduction study, and MRI were conducted on patients who visited department of neurology or orthopedicsurgery due to pain and sensory abnormality of their ankle and foot.
Results: 34 patients underwent the operation. Ganglionaccounted for the largest portion of the operative findings. In addition, varicose veins, intrinsic foot muscle hypertrophy, tenosynovitis,and fascia thickening were mainly observed. Of the 34 patients, 33 patients underwent pre-operative MRI, of whom18 patients showed MRI findings consistent with the operative findings.
Conclusions: Space-occupying lesions accounted forthe majority of the causative factors in TTS patients who underwent the surgical treatment. In this study, the MRI appeareduseful for identifying causes of TTS. |
| Key words:
Tarsal tunnel syndrome, Magnetic resonance imaging, Etiology |
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