Table 4.
Presence of heterotopic ossification on followup radiographs
| Grade of heterotopic ossification | Number | % of affected patients |
|---|---|---|
| 1 | 6 | 35 |
| 2 | 3 | 15 |
| 3 | 0 | 0 |
| 4 | 0 | 0 |
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