Avascular necrosis
Diagnosis
Xray
- sclerosis


CT
Xray
- sclerosis


CT


Convincing association with development of osteoarthritis
- arthritic changes beginning at radial styloid
- progress to scaphocapitate & capitolunate
Anterolateral bowing
True bone dysplasia
- hamartomatous area in the tibia
- non union or potential non union through pathological fracture in this region
The defect in the bone is filled with mature, fibrous connective tissue
- not really a pseudoarthrosis
- by definition, a pseudarthrosis has a cleft lined by fibrocartilage containing fluid and bounded by a capsule