Research advances in radiographic evaluation methods for lumbar intervertebral fusion

Lumbar fusion surgery is now widely used in the treatment of all types of lumbar degenerative diseases and has achieved satisfactory results. The lumbar interbody fusion rate is a key indicator for assessing the long-term efficacy of the procedure, therefore a proper assessment of lumbar interbody fusion is essential. Observation of lumbar interbody fusion by radiographic examination is a common tool for evaluating lumbar fusion and plays an integral role in the evaluation of postoperative interbody fusion outcomes. The purpose of this review is to summarize the current radiographic methods for assessing lumbar interbody fusion, evaluate the advantages and disadvantages, and applicability of different radiographic methods, so as to provide theoretical evidence for the selection of appropriate radiographic methods for clinical evaluation of lumbar interbody fusion.