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Changes in intervertebral distraction: A possible factor for predicting dysphagia after anterior cervical spinal
Yu-Yang Yi1, Hao Chen1, Hao-Wei Xu1
1Department of Spinal Surgery, Shanghai East Hospital, School of Medicine, Tongji University, Shanghai 200092, China.
Summary
Increased intervertebral distraction after anterior cervical spine surgery (ACSS) of 6.10 mm or more is linked to early dysphagia. Patients undergoing C3-4 or multilevel ACSS require careful postoperative swallowing monitoring.
Area of Science:
- Spine Surgery
- Degenerative Spine Disorders
- Swallowing Disorders
Background:
- Dysphagia is a common complication following anterior cervical spine surgery (ACSS).
- Identifying predictors of early postoperative dysphagia is crucial for patient management.
Purpose of the Study:
- To investigate the association between changes in intervertebral distraction and early dysphagia after ACSS.
- To identify specific surgical factors associated with increased dysphagia risk.
Main Methods:
- Retrospective analysis of 289 patients undergoing ACSS for myelopathy/radiculopathy.
- Assessment of swallowing function using Bazaz score and Swallowing-Quality of Life survey.
- Calculation of intervertebral distraction change (postoperative vs. preoperative).
Main Results:
- The incidence of dysphagia was 58.1% at 1 week post-ACSS.
- A change in intervertebral distraction ≥ 6.10 mm was significantly associated with early dysphagia.
- Surgery at C3/4 or involving ≥3 levels independently predicted higher dysphagia rates.
Conclusions:
- A change in intervertebral distraction ≥ 6.10 mm is a significant predictor of early dysphagia post-ACSS.
- Patients undergoing C3-4 or multilevel ACSS require vigilant postoperative monitoring for swallowing dysfunction.
