Mechanical Complications in Adult Spine Deformity Surgery: Retrospective Evaluation of Incidence, Clinical Impact and Risk Factors in a Single-Center Large Series.

Conversely, patients who had an upper instrumented vertebra between T1 and T5 or iliac extension of the arthrodesis area showed a trend toward having a mechanical complication; these findings could be explained considering that more complex deformities are more likely to have mechanical complications.

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