Nerve supply of the human knee and its functional importance

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Abstract
This investigation utilized gross dissections, histolog ical preparations, and neurophysiologic experiments to gain an improved understanding of the innervation of the human knee. Anatomical illustrations represent the findings of dissections of 15 fresh amputation specimens. Neurohistologic preparations using silver staining techniques demonstrate the rich innervation of the soft tissues of the knee, and a variety of spe cialized receptors are identified. In 10 subjects with normal knees, an experimentally produced knee ef fusion of 60 cc was found to result in profound inhi bition of reflexly evoked quadriceps contraction. Clin ical implications of the anatomical and physiologic data are discussed.