Predicting strength outcomes for upper limb nerve transfer surgery in tetraplegia

Author:

Stanley Edward A.12ORCID,Hill Bridget34,McKenzie Dean P.56,Chapuis Pierre2,Galea Mary P.78,van Zyl Natasha12

Affiliation:

1. Department of Plastic and Reconstructive Surgery, Austin Health, Heidelberg, VIC, Australia

2. Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia

3. Department of Occupational Therapy, Austin Health, Heidelberg, VIC, Australia Epworth

4. Rehabilitation Medicine Unit, Epworth HealthCare, Richmond, VIC, Australia

5. Research Development and Governance Unit, Epworth HealthCare, Richmond, VIC, Australia

6. Department of Health Sciences and Biostatistics, Swinburne University of Technology, Hawthorn, VIC, Australia

7. Victorian Spinal Cord Service, Austin Health, Heidelberg, VIC, Australia

8. Department of Medicine (Royal Melbourne Hospital), The University of Melbourne, Parkville, VIC, Australia

Abstract

We report a retrospective study of 112 nerve transfers in 39 participants to investigate predictors of strength outcomes after nerve transfer surgery for upper limb reanimation in tetraplegia. We measured clinical and pre- and intraoperative neurophysiological assessment variables and compared them with strength outcomes 2 years after nerve transfer surgery. We found statistically significant improvement in Medical Research Council strength grades after nerve transfer surgery with lower cervical spine injuries (between one and two grades), lower donor nerve stimulation thresholds (half of a grade), greater motor evoked potential activity in recipient nerves (half of a grade) and greater muscle responses to intraoperative stimulation of donor (half of a grade) and recipient nerves (half of a grade). Level of evidence: III

Publisher

SAGE Publications

Subject

Surgery

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