Organization of the fascia and aponeurosis in the lumbar paraspinal compartment

Surgical and Radiologic Anatomy : SRA
Maud CrezeOlivier Gagey

Abstract

The thoracolumbar fascia (TLF) and the erector spinae aponeurosis (ESA) play significant roles in the biomechanics of the spine and could be a source of low back pain. Attachment, collagen fiber direction, size and biomechanical properties of the TLF have been well documented. However, questions remain about the attachment of the TLF and ESA in relation to adjoining tissues in the lumbosacral region. Moreover, quantitative data in relation to the ESA have rarely been examined. The aim of this study was to further investigate the anatomical features of the TLF and ESA and to determine the attachments and sliding areas of the paraspinal compartment through dissection. In 10 fresh cadavers (6 females, 4 males, mean age: 77 ± 10 years), we determined (1) the gross anatomy of the ESA and the TLF (attachments and sliding areas) and (2) the structure of the ESA and the TLF (thickness, width, orientation of collagen fibers). The pennation angle between the axis of the ES muscle fibers and the axis of the collagen fibers of the ESA were also measured. The TLF is an irregular dense connective tissue with a mean thickness of 0.95 mm. The distance between the spinous processes line and the site where the neurovascular bundles pierced the T...Continue Reading

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Citations

Mar 23, 2019·Journal of Anatomy·Maud CrezeMarie-France Bellin
Apr 9, 2019·PloS One·Maud CrezeOlivier Gagey
May 21, 2020·BMC Musculoskeletal Disorders·Anke HofsteGerbrand J Groen
Nov 29, 2020·Journal of Electromyography and Kinesiology : Official Journal of the International Society of Electrophysiological Kinesiology·Louise TierPaul W Hodges

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