Fiber type composition of articular branches of the tibial nerve at the knee joint in man

The Anatomical Record
A E HinesT Sinkjaer

Abstract

We examined the fiber type composition of the articular branches of the tibial nerve in human cadavers. Our primary motivation was to assess the suitability of these nerve branches for making neural recordings by using an interface, such as a nerve cuff electrode or a microelectrode array. Articular branches of the tibial nerve innervate primarily the posterior joint capsule of the knee (Gardner, 1948. Anat. Rec, 101:109-130); the main branch corresponds anatomically to the posterior articular nerve (PAN), which has been studied extensively in animals such as the cat. By using light microscopy, we counted the numbers of myelinated fibers in articular branches of the tibial nerve removed from eight cadavers. Unmyelinated fibers were counted in the same specimens by using electron microscopy, and the percentage of unmyelinated fibers was calculated. We found on average 2,280 myelinated fibers in the main articular branch and 279 fibers in individual capsular ramifications. Myelinated fiber diameter histograms showed either bimodal (peaks at 3-4 and 9 microns) or unimodal (peak at 3-4 microns) distributions, depending on the specimen. These histograms were similar in appearance for both the individual capsular ramifications and th...Continue Reading

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Citations

Dec 4, 2009·Seminars in Arthritis and Rheumatism·David Andrew Rice, Peter John McNair
Jul 15, 2000·IEEE Transactions on Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society·R R RisoT Sinkjaer
May 7, 2015·Brain : a Journal of Neurology·Florian HenrichRolf-Detlef Treede
Mar 27, 2018·Clinical Anatomy : Official Journal of the American Association of Clinical Anatomists & the British Association of Clinical Anatomists·Junya SakamotoMinoru Okita
Oct 1, 2001·Neuromodulation : Journal of the International Neuromodulation Society·T R Scott, M Haugland
Sep 21, 2013·Nature Reviews. Rheumatology·Anne-Marie Malfait, Thomas J Schnitzer
Sep 5, 2019·The Journal of Bone and Joint Surgery. American Volume·Brian J LoydAndrew J Kittelson

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