Alphabetical
- Developmental Dysplasia of the Hip
Classification of Developmental Dysplasia of the Hip (DDH)
1. By “Type”
- Identified in perinatal period & respond well
- Secondary to neuromuscular disorder
- Teratologic disorders
2. by “Degree”
- Hip instability
- Hip subluxable
- Hip dislocatable
- Hip dislocated
3. Radiological
- Epiphysis medial to Perkins & below Helgenrieners
- Below Helgenrieners but lateral to Perkins
- Lateral to Perkins at level of acetabular margin
- Lateral to Perkins & above acetabulum
4. Also “Early” or “Late”
- Osteochondritis Dissecans of the Talus
Orthopaedic Classifications
Classification of Osteochondritis Dessicans (OCD) of the Talus
| Grading | Description |
|---|---|
| I | undisplaced |
| II | partially detached |
| III | detached but not displaced |
| IV | detached + displaced or rotated |