The radiological analysis of osteonecrosis in rare positions
- VernacularTitle:激素所致罕见部位骨坏死影像学分析
- Author:
Xuemei ZHANG
;
Yushan MA
- Publication Type:Journal Article
- Keywords:
Osteonecrosis;
Glucocorticoids;
Severe acute respiratory syndrome;
Magnetic resonance imaging
- From:
Chinese Journal of Radiology
2001;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To analyze the radiological images of osteonecrosis in rare positions in recovered SARS patients, and to study the correlation with the hormone application.Methods The extremities of 41 SARS patients in the recovery stage from June to August in 2003 were examined by using X-ray and 0.5T MR scanner, then the correlation of MR examination results and the application of hormone was analyzed.The mean time interval between the imaging examination and initial hormone application was 88.2 days (66～106 days), the mean maximum hormone (metastab) dose was 392 mg (320-480 mg), and the average medication time was 47.2 days (30-70 days).Results The osteonecrosis of rare positions was revealed in 5 cases involving 11 positions, including bilateral heads of humerus (3), right scaphoid bone (1), right talus (1), bilateral calcaneus (1), and right ischium (1).The main MR manifestation was irregular abnormal signal.Osteonecrosis of right ischium was demonstrated on plain film in only one case.Conclusion MR examination, especially the multi-location scan is necessary in finding the osteonecrosis in SARS patients in the earlier phase.The hormone dose, the medication duration, the sensitivity to hormone, and the difference of individuals are important causes of osteonecrosis.
