Journal of Hand Surgery (European Volume)

 

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Journal of Hand Surgery (European Volume), Vol. 32, No. 1, 31-37 (2007)
DOI: 10.1016/j.jhsb.2006.08.019

Article

Enhanced Sensory Recovery after Median Nerve Epair Using Cortical Audio–Tactile Interaction. A Randomised Multicentre Study

B. ROSÉN and G. LUNDBORG

From the Department of Hand Surgery, Lund University, Malmö University Hospital, SE-205 02 Malmö, Sweden

Correspondence: Birgitta Rosén OT PhD, Department of Hand Surgery, Lund University, Malmö University Hospital, SE-205 02 Malmö, Sweden, Tel.: +46 40 331 934; fax: +46 40 928 855. E-mail:birgitta.rosen{at}hand.mas.lu.se

The "Sensor Glove System" offers an alternate afferent inflow from the hand early after nerve repair in the forearm, mediated through the hearing sense, implying that deprivation of one sense can be compensated by another sense. This sensory "by-pass" was used early after repair of the median nerve with the intention of improving recovery of functional sensibility by maintaining an active sensory map of the hand in the somatosensory cortex during the deafferentation period. In a prospective multicentre clinical study, one group (n = 14) started early after surgery with sensory re-education using the Sensor Glove System and the control group (n = 12) received conventional sensory re-education, starting 3 months postoperatively. The patients were checked regularly during a 1-year period, with focus on recovery of tactile gnosis. After 12, months, tactile gnosis was significantly better in the Sensor Glove System group. This highlights the timing for introduction of training after nerve repair, focusing on the importance of immediate sensory re-learning.

Key Words: nerve repair • sensory re-education • sense substitution • brain plasticity • cross-modality • outcome


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