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The distribution of 38 joints affected by osteonecrosis in 15 patients with polymyositis (PM)/dermatomyositis (DM)
| Patients | Number of joints/number of patients |
|||
|---|---|---|---|---|
| Hip | Knee | Ankle | Shoulder | |
| PM | 6/3 | 3/2 | 1/1 | 0/0 |
| DM | 13/8 | 10/5 | 2/1 | 3/2 |
| Total | 19/11 | 13/7 | 3/2 | 3/2 |
