Hong Kong Med J 2008;14(Suppl 1):S14-6
Use of magnetic resonance imaging for screening for avascular necrosis post- SARS
MK Yuen, L Leong, Y Wong, GE Antonio, JF Griffith, YL Lai, JCK Chan, HSE Chan, SJ Shu
Diagnostic Radiology, Tuen Mun Hospital, Tsing Chung Koon Road, Tuen Mun, NT, Hong Kong
1. Avascular necrosis (AVN) can occur following use of low-dose corticosteroids, though the risk increases with increase in dosage.
2. The relative risk of AVN increases non-linearly with total dosage and total dosage per kg body weight.
3. The steroid dosage does not correlate with the extent of involvement.
4. Early AVN is relatively stable in the medium term.