活动度保留对临近节段退变的作用是什么？
What Is the Effect of Motion Preservation on Adjacent Level Degeneration?
结论：TDR被证实对于临近节段椎间盘保护有积极作用。
Conclusion. TDR proved to have a beneficial effect with respect to adjacent level disc preservation.
椎间盘退变和椎管狭窄的发生与第一个临近节段的疗效有巨大的相关性。
Disc degeneration and stenosis correlated significantly with outcome at the first adjacent level.
另外，PM MA增强并不会增加骨不连发生率和临近节段退变的发生率。
In addition, PMMA augmentation did not increase the nonunion rate and incidence of ASD.
在大量的患者中，融合术已经与临近节段退变和关节突关节病理改变相关联。
Summary of Background Data. Fusion procedures have been associated with adjacent level morbidities and facet joint pathologies in a considerable number of patients.
临床意义：这些数据可用于研究脊柱融合术的作用并进一步确定临近节段退变的机制。
Clinical Relevance: These data may be used to study the effects of spinal arthrodesis and to further define the mechanical component of adjacent-segment degeneration.
这困难表明无论是针刺相关的损伤还是不必要的椎间盘切除都可以加速临近节段的退变。
This may indicate that either needle related trauma or unnecessary surgical dissection contributes to accelerated adjacent segment degeneration.
结论：在临近节段退变方面，ACD F术后短期随访表面不正确的椎间盘定位有3倍的风险。
Conclusion. There is a 3-fold increase in risk of developing adjacent level disc degeneration in incorrectly marked discs after ACDF at short-term follow-up.
颈椎融合术后临近节段退行性变的发生及发生率：椎间盘退行性变是融合临近节段最常见的退变表现；
Occurrence and incidence of degeneration of adjacent segment after cervical spinal fusion: The most common abnormal finding inadjacent segment was disc degeneration.
诊断治疗过程中，对所有病人进行诱发性椎间盘造影，其中包括评价预备融合节段的临近间盘。
During the diagnostic workup, all patients had undergone provocative discography that included the assessment of the discs adjacent to the intended fusion levels.
诊断治疗过程中，对所有病人进行诱发性椎间盘造影，其中包括评价预备融合节段的临近间盘。
During the diagnostic workup, all patients had undergone provocative discography that included the assessment of the discs adjacent to the intended fusion levels.
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