A systematic review of the soft-tissue connections between neck muscles and dura mater

The objective of this systematic review was to elucidate the existence of soft-tissue connections between the neck muscles and cervical dura mater. Several studies discuss the existence of a cervical myodural bridge, however, conflicting data have been reported.

Searches were conducted in the PubMed, Web Of Science, Cochrane Library and PEDro databases. Studies reporting original data regarding the continuity of non post-surgical soft tissue between the cervical muscles and dura mater were reviewed. Two reviewers independently selected articles, and a third one resolved disagreements. Another two researchers extracted the methodology of the study, the anatomical findings and evaluated the quality of the studies using QUACS scale (Quality Appraisal for Cadaveric Studies). A different third researcher resolved disagreements.

Twenty-six studies were included. A soft-tissue connection between the rectus capitis posterior minor, the rectus capitis posterior major and the obliquus capitis inferior muscles seems to be proved with a strong level of evidence for each one of them. Controversy exists about the possible communication between the dura mater and the upper trapezius, rhomboideus minor, serratus posterior superior and splenius capitis by means of the ligamentum nuchae. Finally, there is limited evidence about the existence of a soft-tissue connection between rectus capitis anterior muscle and the dura mater.

There is a continuity of soft tissue between the cervical musculature and the cervical dura mater; this might have physiological, pathophysiological and therapeutic implications, as well as going some way to explaining the effect of some therapies in craniocervical disorders.

Neck Pain

Out of all 291 conditions studied in the Global Burden of Disease 2010 Study, neck pain ranked 4th highest in terms of disability and 21st in terms of overall burden.

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