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Incidence of non-union and breakage of HA spacers
| No. of evaluated spacers | Non-union | Breakage | |||
|---|---|---|---|---|---|
| 1 year | Final follow-up | 1 year | Final follow-up | ||
| CSM (n = 13) | 71 | 19 (27%) | 15 (21%) | 6 (8%) | 17 (24%) |
| OPLL (n = 14) | 77 | 19 (25%) | 13 (17%) | 3 (4%) | 16 (21%) |
HA hydroxyapatite, CSM cervical spondylotic myelopathy, OPLL ossification of the posterior longitudinal ligament
