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Suprascapular notch
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Suprascapular notch
The suprascapular notch (or scapular notch) is a notch in the superior border of the scapula, just medial to the base of the coracoid process. It is converted into the suprascapular canal by the suprascapular ligament.
This notch is converted into a foramen by the suprascapular ligament, and serves for the passage of the suprascapular nerve. The suprascapular vessels vary in number as well as in their course as they run at the suprascapular notch site. The suprascapular artery pass above the suprascapular ligament in most cases. The suprascapular vein may pass through the suprascapular notch or it may instead pass superior to the suprascapular ligament.
Two main classification systems exist; others are modified approaches of the same principle.
Introduced by Hrdicka 1942 and modified by Rengachary et al. 1979 There are six basic types of scapular notch:
Introduced by Natsis et al. 2007 and modified by Polguj et al. 2011 There are five basic types of scapular notch:
The second method of suprascapular notch typing yields more practical approach in clinical diagnosis of the suprascapular nerve entrapment.
As the suprascapular nerve passes through the suprascapular notch, it is a common site of entrapment for the nerve.
Suprascapular notch stenosis is a narrowing of the notch internal space that can potentially compress the suprascapular nerve leading to suprascapular nerve entrapment. Al-Redouan et al. 2020 predicted the morphological pattern of the suprascapular notch stenosis revealing higher incidence in the discrete notch (Type V according to the parametric measurements typing system). There are two main suprascapular stenosis patterns:
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Suprascapular notch
The suprascapular notch (or scapular notch) is a notch in the superior border of the scapula, just medial to the base of the coracoid process. It is converted into the suprascapular canal by the suprascapular ligament.
This notch is converted into a foramen by the suprascapular ligament, and serves for the passage of the suprascapular nerve. The suprascapular vessels vary in number as well as in their course as they run at the suprascapular notch site. The suprascapular artery pass above the suprascapular ligament in most cases. The suprascapular vein may pass through the suprascapular notch or it may instead pass superior to the suprascapular ligament.
Two main classification systems exist; others are modified approaches of the same principle.
Introduced by Hrdicka 1942 and modified by Rengachary et al. 1979 There are six basic types of scapular notch:
Introduced by Natsis et al. 2007 and modified by Polguj et al. 2011 There are five basic types of scapular notch:
The second method of suprascapular notch typing yields more practical approach in clinical diagnosis of the suprascapular nerve entrapment.
As the suprascapular nerve passes through the suprascapular notch, it is a common site of entrapment for the nerve.
Suprascapular notch stenosis is a narrowing of the notch internal space that can potentially compress the suprascapular nerve leading to suprascapular nerve entrapment. Al-Redouan et al. 2020 predicted the morphological pattern of the suprascapular notch stenosis revealing higher incidence in the discrete notch (Type V according to the parametric measurements typing system). There are two main suprascapular stenosis patterns:
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