Table 2 Causes of multifocal and oligofocal osteonecrosis (ON) in patients with ON
From: Clinical characteristics and role of whole-body bone scan in multifocal osteonecrosis
Cause of ON | Multifocal ON (n = 26) | Oligofocal ON (n = 228) | Any ON (N = 254) | p-value |
|---|---|---|---|---|
Idiopathic | 4 (15.4) | 60 (26.3) | 64 (25.2) | 0.001 |
Trauma | 1 (3.8) | 24 (10.5) | 25 (9.8) | |
Comorbidity requiring corticosteroids and immunosuppressive agents | 18 (69.2) | 70 (30.7) | 88 (34.6) | |
Excessive alcohol intake | 3 (11.5) | 74 (32.5) | 77 (30.3) |