Abstract
Purpose
Spasticity is the result of a variety of lesions to the central nervous system and one of the most common causes of disability worldwide. Selective peripheral neurectomy (SPN) is a surgical procedure that permanently decreases focal spasticity. The authors’ objective is to provide recommendations, in terms of probabilities, for locating terminal motor entry points to muscles of the thigh, as alternatives for proximal incision sites to SPN.
Methods
The femoral, obturator, and sciatic nerves, and its corresponding motor rami, were systematically dissected on cadaveric specimens, and terminal motor entry points to each muscle of the thigh were located and carefully measured, relative to the length of the thigh. Measurement distributions were obtained and normal transformations were used when necessary.
Results
In 23 adult cadaveric specimens, 779 motor rami were dissected. Entry points’ locations are presented as a percentage of the length of the thigh in means and standard deviations, which roughly corresponds to 64 and 95% probability of finding a motor entry point.
Conclusion
Alternative incisions directly over the motor entry points, for the muscles of the thigh, may be helpful when considering SPN as treatment for focal spasticity. A prior degree of certainty of the location of the nerve to be severed may simplify surgical approach.
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Data availability
Data will be available from the corresponding author upon reasonable request.
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Acknowledgements
The authors would like to express gratitude to everyone in the CLEMI foundation who kindly assisted in every concern related to cadaveric dissections. We also sincerely thank those who donated their bodies to science so that anatomical research could be accomplished. Results from such studies increase humankind’s overall knowledge and potentially improve patient care and people’s well-being. Donors and their families deserve our highest gratitude.
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G-R: project development, data collection, manuscript editing. N-A: project development, data collection. J-R: data analysis. R-B: project development, data collection. M-P: manuscript writing and editing.
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This study was performed in accordance with the principles of the Declaration of Helsinki. Instituto Roosevelt’s Committee on Medical Research Ethics granted approval. CLEMI obtained signed consent for cadaveric donation for all the specimens involved in this study.
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Garcia-Rueda, M.F., Nossa-Almanza, S.A., Jimenez-Ramirez, J.D. et al. Terminal nerve entry points’ locations to muscles of the thigh for selective peripheral neurectomy in the adult population: a cadaveric study. Surg Radiol Anat 45, 3–9 (2023). https://doi.org/10.1007/s00276-022-03047-x
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DOI: https://doi.org/10.1007/s00276-022-03047-x