Trochlea of Left Superior Oblique (Trochlea musculi obliqui superioris sinister)
Educational content only — not medical advice.
Anatomy
The trochlea of the left superior oblique is a small U-shaped pulley of fibrocartilage attached to the trochlear fovea of the frontal bone at the superomedial angle of the orbit. Lined by a synovial sheath, it redirects the superior oblique tendon posterolaterally at a 54-degree angle to insert into the globe.
Clinical notes
Brown syndrome is restricted elevation of the adducted eye due to inability of the superior oblique tendon to slide smoothly through the fibrocartilaginous trochlea.
Related structures
Educational references
FAQ
What is the role of the Trochlea of Left Superior Oblique?
The trochlea of the left superior oblique is a small U-shaped pulley of fibrocartilage attached to the trochlear fovea of the frontal bone at the superomedial angle of the orbit. Lined by a synovial sheath, it redirects the superior oblique tendon posterolaterally at a 54-degree angle to insert into the globe.
Why is the Trochlea of Left Superior Oblique clinically important?
Brown syndrome is restricted elevation of the adducted eye due to inability of the superior oblique tendon to slide smoothly through the fibrocartilaginous trochlea.
Source & license
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