Why Do an MRI for Hallux Valgus?
Such factors as heredity or high heels may cause a foot deformity known as hallux valgus. Magnetic resonance imaging (MRI) is a useful diagnostic tool for evaluating this condition.
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Hallux Valgus Definition
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The anatomical term "hallux," a derivative of the Latin "hallex," refers to the big toe of the human foot. The Latin word "valgus" means "bow-legged," and medically applies to the abnormal displacement of any body part away from the midline of the body. So a hallux valgus is a deformity in which the big toe does not point straight forward, but veers in the direction of the second toe.
Safe Diagnostic Tool
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MRI is a safe tool for analyzing the exact nature of hallux valgus deformity. It uses no high frequency radiation, only radio waves. These radio waves alter the magnetic alignment of the hydrogen atoms in human tissue. The diagnostician can view the disposition of these hydrogen atoms and form intelligent conclusions concerning the foot problem.
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Finding Contributing Factors
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MRI can tell whether such factors as bursitis or an excess number of sesamoid bones are contributing to hallux valgus. Both factors often occur in hallux valgus patients. Sesamoid bones are small bones shaped like sesame seeds and embedded in tendons. Bursitis is the inflammation of fluid-filled sacs called bursa, which serve as cushions around bones and joints.
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References
- "Clinical Imaging"; Hallux Valgus ...; Schweitzer, Maheshwari & Shabshin; November-December 1999
- Mayo Clinic: Surgury to Remove Bunion Not a Quick Fix
- Webster's Online Dictionary: Hallux
- Webster's Online Dictionary: Magnetic Resonance Imaging
- Webster's Online Dictionary: Sesamoid
- "Collins Latin Gem Dictionary"; .D.A. Kidd, M.A.; 1960
Resources
- Photo Credit high heels image by vincentphotos from Fotolia.com