Ossification center | Age ossification centers form (years) | Age by which ossification centers fuse (years) |
Clavicle (medial) | 18 to 20 | 26 to 30 |
Clavicle (lateral) | Puberty | 20 |
Scapula (coracoid) | First center: 1* Second center: 15 | 15* (first center), 22 (second center) |
Scapula (acromion) | Pre-acromion: Puberty Meso-acromion: Puberty Meta-acromion: Puberty | 22¶ |
Scapula (glenoid fossa) | First center: 10 Second center: Puberty | 25 |
Scapula (vertebral border) | Puberty | 22 |
Scapula (inferior angle) | Puberty | 22 |
Humerus (greater tuberosity) | 3 | 7 |
Humerus (lesser tuberosity) | 5 | 7 |
Proximal humeral epiphysis | 7 | 19 |
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