- Discussion:
- this is the earliest clinical manifestation of the syndrome;
- most common symptom, seen in 50% of cases, is sudden pain in groin;
- this may be progressive, & be associated with radiation to thigh,
which is often worse at night;
- exam of hip reveals limited movement, perhaps in all directions, esp
w/ medial rotation or abduction. If stage I osteonecrosis is
suspected, then FEB tests should be carried out;
- MRI Findings:
- Bone Scans:
