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[Factors affecting adjacent segment degeneration after rigid lumbar internal fixation]
Ze-zheng Liu1, Zhong-min Zhang, Da-di Jin
1Department of Orthopedic Surgery, Third Affiliated Hospital, Southern Medical University, Guangzhou 510630, China. liuzezheng1983@126.com
Summary
Pre-existing adjacent segment degeneration significantly increases the risk of adjacent segment degeneration (ASD) after lumbar internal fixation surgery. This factor, unlike gender or fusion range, is a key predictor of postoperative ASD.
Area of Science:
- Spine surgery
- Degenerative spine disease
- Biomechanical analysis
Context:
- Lumbar internal fixation is a common surgical procedure for various spinal conditions.
- Adjacent segment degeneration (ASD) is a potential complication following spinal fusion.
- Understanding ASD risk factors is crucial for optimizing surgical outcomes.
Purpose:
- To identify factors influencing the development of adjacent segment degeneration (ASD) after lumbar internal fixation.
- To analyze the correlation between preoperative disc characteristics and postoperative ASD.
- To determine the predictive value of preoperative adjacent disc degeneration for ASD.
Summary:
- A review of 147 patients undergoing lumbar internal fixation revealed an ASD incidence of 13.6%, exclusively at the cephalad adjacent segment.
- Preoperative degeneration of the adjacent disc was identified as a significant risk factor for developing ASD post-surgery.
- Gender, range of fusion, and site of fusion were not found to be significant risk factors for ASD.
Impact:
- Highlights the importance of preoperative assessment of adjacent disc health.
- Informs surgical planning and patient selection to mitigate ASD risk.
- Contributes to a better understanding of long-term outcomes after lumbar fusion.
