1998 Fiscal Year Final Research Report Summary
Does kyphofic malalignment after anterior cervical fusion promote the degenerative process in adjacent intervertebral levels?
| Project/Area Number |
09671485
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Orthopaedic surgery
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| Research Institution | Shiga University of Medical Science |
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Principal Investigator |
KATSUURA Akitomo Shiga University of Medical Science, Faculty of Medicine Instructor, 医学部, 助手 (60214342)
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| Co-Investigator(Kenkyū-buntansha) |
HUKUDA Shinsuke Spiga University of Medical Science, Faculty of Medicine Professor, 医学部, 教授 (20028559)
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| Project Period (FY) |
1997 – 1998
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| Keywords | Shinal Fusion / Adjacent Disc Lesion / Alignment |
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| Research Abstract |
We retrospectively studied the causes of degenerative change of intervertebral levels adjacent to fusion in patients who had undergone anterior decompression and fusion and who had been followed for more than 5 years. The aim of this study was to determine whether malalignment, such as kyphotic pattern, due to collapse of graft bone after anterior cervical fusion promotes degenerative change of intervertebral levels adjacent to fusion.
We examined cervical alignment and degenerative change of adjacent intervertebral levels roentgenographically at the time of reassessment, and analyzed their relationship. We also examined the differences between symptomatic patients with degenerative change of intervertebral spaces adjacent to fixation and asymptomatic patients. In patients with malalignment, degenerative change of adjacent intervertebral levels progressed to a greater extent than in those with lordotic alignment. Patients with symptomatic deterioration of degenerative change of intervertebral spaces adjacent to fusion have a smaller spinal canal diameter than do asymptomatic patients.
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