Cervical sagittal alignment as a predictor of adjacent-level ossification development.

J Pain Res · 2018 · PMC6055838 · PMID 30050320

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showed a trendno p-value reported

In terms of clinical efficacy, both groups in this study showed a trend of significant improvement in the first 6 months after surgery, but a slight recessive trend after 1 year.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.