[Innervation of the sacroiliac joint of the human]
Karl Grob, W L Neuhuber & R O Kissling
abstract
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The innervation of the human sacroiliacal joint was investigated on
adult cadaveric specimens devoted for routine dissection courses,
and on fetuses obtained from therapeutic abortions. Gross anatomical
and microscopic dissection, histology of dissected nerves, and
histological and immunocytochemical approaches were used.
Innervation of the iliosacral joint is provided by fine nerve
branches derived exclusively from dorsal rami of spinal nerves
S1-S4. No branches could be detected from the plexus sacralis and
obturator nerve coursing over the ventral aspect of the joint.
Nerves were distributed to superficial and deep dorsal sacroiliac
ligaments, and to the sacrotuberous and sacrospinous ligaments.
Dorsal spinal rami continued their course laterally, sandwiched
between superficial and deep portions of sacroiliac ligaments,
piercing the origin of the glutaeus maximus muscle. Histological
examination of dissected nerves demonstrated numerous thick
myelinated, besides thin myelinated and unmyelinated nerve fibers
compatible with a broad repertoire of sensory receptors including
encapsulated mechanoreceptors. Histological and immunocytochemical
studies on fetal iliosacral joints showed neurofilament positive
nerve fibers only in dorsal portions. This innervation pattern may
provide explanations for various patterns of pseudoradicular and
referred pain in affections of the sacroiliac joint.
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citation
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Grob K, Neuhuber W L, Kissling R O. [Innervation of the sacroiliac
joint of the human]. Z Rheumatol 54:117-22.
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type
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journal paper/review (Translation2::getLang(): unknown language "".
Use Translation2::setLang() to set a default language.)
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journal title
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Z Rheumatol (54/2)
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ISSN print
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0340-1855
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pages
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117-22
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PubMed
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7793158
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