Espiral AtlasSupraglenoid tubercle
tuberculum supraglenoidale
Study entry
Description
Prominence just above the glenoid cavity.
Relations
Origin of the long head of the biceps brachii.
Source: cap. 3, «Huesos del miembro superior: escápula»
Clinical correlation
Rupture of the tendon of the long head of the biceps (Popeye sign)
It generally happens after 35, in a tendon inflamed and worn by the to-and-fro in the intertubercular sulcus; it is usually torn from the supraglenoid tubercle. The rupture is sudden, with a snap, and the loose belly forms a ball in front of the lower part of the arm (Popeye deformity). It also occurs in those who lift weights and flex the arm against excessive load, and in swimmers and throwers, from repeated overhead movements.
Related clinical cases
- Rupture of the tendon of the long head of the biceps (Popeye sign)