The Thumb pp 215-228 | Cite as

Sensory Loss

  • Jong Won Hong


Sensory loss of the thumb is not so much important compared to the loss of motor function. However, movement control requires a continuous and reciprocal exchange of information between the motor and sensory. Therefore, the sensory loss of the thumb might have a secondary effect on the movement of the thumb.

The extent and cause of the sensory loss in the thumb must be analyzed clearly. Median nerve and radial nerve cover the thumb sensory. Sensory tests usually include two-point discrimination (2PD), Semmes-Weinstein test, and tactile gnosis. In particular, two-point discrimination uses static, moving 2PD for proper evaluation.

If the nerve injury is the reason of sensory loss, nerve repair is the first choice of treatment. However, in the case of high-level nerve injury, recovery of motor function is a priority. Surgeons must consider many things for recovery of sensation. If sensory loss is caused by a defect of the thumb volar pulp itself, reconstruction with a sensation flap can be performed. In addition, sensory reeducation and occupational therapy are important for sensory and functional maintenance.


Thumb Sensory loss 


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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Jong Won Hong
    • 1
  1. 1.Department of Plastic and Reconstructive SurgeryYonsei University, Severance HospitalSeoulSouth Korea

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