The Anatomical Structure And Location Of The Spinoglenoid Notch

Description

Framed on the posterior scapula (shoulder blade), the animation localizes the spinoglenoid notch along the lateral margin of the scapular spine, just medial to the glenoid cavity and inferior to the acromion. As the view progresses, the supraspinous fossa superiorly and the infraspinous fossa inferiorly are oriented to the scapular spine so you can track how this groove links the two fossae at the lateral end of the spine. Rotation and slight zoom clarify the three-dimensional depth of the notch against adjacent bony landmarks, including the neck of the scapula and the posterior rim of the glenoid. Spinoglenoid notch anatomy matters because it is the corridor for the suprascapular nerve (and accompanying vessels) as it passes from the supraspinous fossa into the infraspinous fossa. Compression at this site, often from a paralabral ganglion cyst related to a SLAP lesion, can produce isolated infraspinatus denervation with weakness in external rotation while sparing supraspinatus function. A sequential camera move makes the landmark intuitive: you watch the nerve’s expected trajectory relative to the scapular spine and glenoid, which is harder to grasp from a single posterior plate. Use it in gross anatomy and MSK modules when teaching scapular landmarks, rotator cuff topography, and the course of the suprascapular nerve around the shoulder. It also fits radiology and sports medicine education when correlating posterior shoulder pain with MRI or ultrasound reports describing spinoglenoid notch cysts, and for surgical planning discussions around arthroscopic labral repair where nerve proximity is a concern. Anatomical accuracy verified by SciePro's Medical Advisory Board.