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Current concepts of carpal tunnel syndrome: pathophysiology, treatment, and evaluation

  • Review Article
  • Published:
Journal of Orthopaedic Science

Abstract

The current concepts of carpal tunnel syndrome (CTS) with respect to its pathophysiology, treatment, and evaluation are discussed. With regard to the pathophysiology of idiopathic CTS, biomechanical studies to determine the kinematics of the flexor tendon, and the median nerve inside the carpal tunnel may provide valuable insights. Different degrees of excursion between the flexor tendons and the median nerve could cause strain and microdamage to the synovial tissue; this has been microscopically observed. A biomechanical approach for elucidating the events that trigger the development of CTS seems interesting; however, there are limitations to its applications. Endoscopic carpal tunnel release (ECTR) is a useful technique for achieving median nerve decompression. However, it is not considered superior to conventional open carpal tunnel release in terms of fast recovery of hand function. Unless the effect of inserting a cannula into the diseased carpal tunnel on the median nerve function is quantitatively elucidated, ECTR will not be regarded as a standard procedure for relieving the median nerve from chronic compression. The treatment of CTS should be evaluated on the basis of patient-oriented questionnaires as well as conventional instruments because these questionnaires have been validated and found to be highly responsive to the treatment. It should be noted that nerve conduction studies exclusively evaluate the function of the median nerve, whereas patient-oriented questionnaires take into account not only the symptoms of CTS but other accompanying pathologies as well, such as flexor tenosynovitis. In Japan, the number of CTS patients is expected to rise; this may be attributed to a general increase in the life-span of the Japanese and increase in the number of diabetic patients. Thus, more efforts should be directed toward elucidating the pathophysiology of so-called idiopathic CTS, so that new treatment strategies can be established for CTS of different pathologies.

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Authors and Affiliations

  1. Department of Orthopaedic Surgery, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, 390-8621, Japan

    Shigeharu Uchiyama, Toshirou Itsubo, Koichi Nakamura & Hiroyuki Kato

  2. Department of Orthopaedic Surgery, Shiokawa Hospital, Hokuto, Yamanashi, Japan

    Takashi Yasutomi

  3. Department of Orthopaedic Surgery, Japanese Red Cross Suwa Hospital, Suwa, Nagano, Japan

    Toshimitsu Momose

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  1. Shigeharu Uchiyama
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  2. Toshirou Itsubo
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  3. Koichi Nakamura
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  4. Hiroyuki Kato
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  5. Takashi Yasutomi
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  6. Toshimitsu Momose
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Uchiyama, S., Itsubo, T., Nakamura, K. et al. Current concepts of carpal tunnel syndrome: pathophysiology, treatment, and evaluation. J Orthop Sci 15, 1–13 (2010). https://doi.org/10.1007/s00776-009-1416-x

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  • DOI: https://doi.org/10.1007/s00776-009-1416-x

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