The Relationship Between Cervical Degeneration and Global Spinal Alignment in @entity1 With Adult XXXX .

@entity1 @entity1513 @entity1515 @entity179 @entity85 @entity528
OBJECTIVES: To examine the relationship between @entity528 and spinal alignment by comparing @entity1 with adult @entity85 versus the control cohort. SUMMARY OF BACKGROUND DATA: The effect of degeneration on cervical alignment has been controversial. METHODS: Cervical and full-length spine radiographs of 57 @entity1 with adult @entity85 and 78 @entity1 in the control group were reviewed. Adult @entity85 was classified into 3 types based on the primary characteristics of the deformity: " @entity179 " group, "Positive sagittal imbalance" group, and " @entity1513 " group. @entity528 was assessed using the @entity528 index scoring system. RESULTS: The " @entity179 " group had significantly higher total @entity528 index score (25  7) than the control group (16  8), the "Positive sagittal imbalance" group (18  8), and the " @entity1513 " group (12  7) (P<0.01). The " @entity179 " group had significantly less cervical @entity1515 than the other groups. This reduced amount of cervical @entity1515 was thought to be induced by a compensatory decrease in @entity1513 . In this group, @entity528 was significantly associated with a decrease in cervical @entity1515 . Significantly greater compensatory increase in cervical @entity1515 was noted in the "Positive sagittal imbalance" group (20  15 degrees) and the " @entity1513 " group (26  9 degrees) compared with the control group (11  12 degrees) (P<0.02). CONCLUSIONS: Flat cervical spine coexisted with @entity528 when @entity1513 was induced by @entity179 . In other situations, cervical @entity1515 could increase as a compensatory reaction against sagittal imbalance or hyperthoracic @entity1513 .
