The saphenous nerve and its relationship to the nerve to the vastus medialis in and around the adductor canal: an anatomical study

Acta Anaesthesiologica Scandinavica
R KapoorP M McQuillan

Abstract

Recently, ultrasound-guided saphenous nerve blocks within and distal to the adductor canal have shown success. However, a potential side effect is an unintentional block of branches of the nerve to the vastus medialis resulting in undesired motor weakness. We dissected 40 embalmed cadaver thighs to determine the course and relation of the saphenous nerve to the nerve to the vastus medialis. Measurements were taken between various landmarks, and descriptive statistics were used to present the collected data. In 72.5% of specimens, the most distal visible branch of the nerve to the vastus medialis pierced the muscle proximal to the site where the saphenous nerve crosses the anterior surface of the superficial femoral artery to become medial to the vessel. Knowledge of this anatomy may help establish a safe region in preventing motor blockade when performing saphenous nerve blocks.

References

Feb 26, 2005·Anesthesiology·Honorio T BenzonArthur Calimaran
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Nov 18, 2009·Regional Anesthesia and Pain Medicine·Baskar ManickamReva Ramlogan
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Citations

Jul 4, 2013·Canadian Journal of Anaesthesia = Journal Canadien D'anesthésie·Neil A HansonApril E Slee
Sep 23, 2014·Acta Anaesthesiologica Scandinavica·L Romundstad, A Sauter
Apr 9, 2015·Canadian Journal of Anaesthesia = Journal Canadien D'anesthésie·Anne K FiskerThomas F Bendtsen
Mar 13, 2018·Clinical Orthopaedics and Related Research·Joseph J KavolusPaul F Lachiewicz
Feb 3, 2015·Regional Anesthesia and Pain Medicine·Stanley C YuanWyndam M Strodtbeck
Mar 26, 2016·Regional Anesthesia and Pain Medicine·David Burckett-St LaurantAnahi Perlas
Aug 20, 2014·Current Opinion in Anaesthesiology·Daniela GhisiAndrea Fanelli
Jun 16, 2017·The Clinical Journal of Pain·David F JohnstonSugantha Ganapathy
Jan 15, 2019·Regional Anesthesia and Pain Medicine·David F JohnstonSamantha Taylor
Oct 11, 2019·Anatomy & Cell Biology·Anasuya Ghosh, Subhramoy Chaudhury
Dec 28, 2016·Acta Anaesthesiologica Scandinavica·M M MasaracchiaB D Sites
Mar 28, 2018·Geriatric Orthopaedic Surgery & Rehabilitation·Patrick T BrennanCarlos J Lavernia
Dec 28, 2019·Regional Anesthesia and Pain Medicine·John TranAnne M R Agur
Sep 6, 2017·The Orthopedic Clinics of North America·Christian J GaffneyChristopher L Peters
Jun 20, 2021·Regional Anesthesia and Pain Medicine·David H KimStavros G Memtsoudis
Jun 30, 2021·Current Opinion in Anaesthesiology·Angela Lucia BaloccoImré Van Herreweghe
Nov 23, 2016·Journal of Clinical Anesthesia·Maulin U VoraStuart A Grant

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