A 10 yr old
gymnast presented with right elbow pain
Timing of ossification center at elbow
CRITOE
Capitellum appears by 8 months
Radial head 3-4 yrs
Internal (medial) epicondyle 5 yrs
Trochlea 7 yrs
Olecranon 9 yrs
External (lateral) epicondyle 11 yrs
Capitellar osteochondritis
- Results from overuse of elbow causing subchondral reactive process and loosening of cartilage and bone
- Usually occurs at anterior surface of capitellum
- Imaging findings show flattening of capitellar surface, or visible lucent zone of defect and sometimes can demonstrate intrarticular fragment of loose bodies.
- Unstable lesions include large size (typically > 1 cm), cystic lesion beneath the osteochondrotic site, containing loose granulation tissue or loose fragement, fluid insinuating beneath the fragment
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1 comment:
Probably easier to remember as CRITOE - 1,3,5,7,9,11 yrs
The usefulness is that, at that certain age, you should be able to see the corresponding ossification centers at their normal location. If you don't, it may indicate trauma to the particular ossification center.
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