Morphological and Radiological Study of Ossified Superior Transverse Scapular Ligament as Potential Risk Factor of Suprascapular Nerve Entrapment

The suprascapular notch is covered superiorly by the superior transverse scapular ligament. This region is the most common place of suprascapular nerve entrapment formation. The study was performed on 812 specimens: 86 dry scapulae, 104 formalin-fixed cadaveric shoulders, and 622 computer topography...

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Bibliographic Details
Published in:BioMed research international 2014-01, Vol.2014 (2014), p.1-7
Main Authors: Sibiński, Marcin, Polguj, Michał, Grzegorzewski, Andrzej, Waszczykowski, Michał, Majos, Agata, Topol, Mirosław
Format: Article
Language:English
Subjects:
Colleges & universities
Entrapment neuropathies
Female
Formaldehyde
Humans
Ligaments
Ligaments - diagnostic imaging
Male
Medical research
Medicine, Experimental
Nerve Compression Syndromes - diagnostic imaging
Ossification, Heterotopic - diagnostic imaging
Scapula - diagnostic imaging
Shoulder
Tomography, X-Ray Computed
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Summary:The suprascapular notch is covered superiorly by the superior transverse scapular ligament. This region is the most common place of suprascapular nerve entrapment formation. The study was performed on 812 specimens: 86 dry scapulae, 104 formalin-fixed cadaveric shoulders, and 622 computer topography scans of scapulae. In the cases with completely ossified superior transverse scapular ligament, the following measurements were performed: proximal and distal width of the bony bridge, middle transverse and vertical diameter of the suprascapular foramen, and area of the suprascapular foramen. An ossified superior transverse scapular ligament was observed more often in men and in the right scapula. The mean age of the subjects with a completely ossified superior transverse scapular ligament was found to be similar than in those without ossification. The ossified band-shaped type of superior transverse scapular ligament was more common than the fan-shaped type and reduced the space below the ligament to a significantly greater degree. The ossified band-shaped type should be taken into consideration as a potential risk factor in the formation of suprascapular nerve entrapment. It could explain the comparable frequency of neuropathy in various populations throughout the world despite the significant differences between them in occurrence of ossified superior transverse scapular ligament.
ISSN:2314-6133
2314-6141
DOI:10.1155/2014/613601