2026-09-24T13:11:20Zhttps://repository.ajou.ac.kr/oai/request

oai:repository.ajou.ac.kr:201003/118502024-10-11T02:21:23Zcom_201003_14369com_201003_14368col_201003_14370

Degenerative retrolisthesis: is it a compensatory mechanism for sagittal imbalance 퇴행성 척추후방전위 : 시상 불균형에 대한 보상작용으로 발생하는가 김, 제중 전, 창훈 대학원 의학과 107716 김, 제중 spinopelvic morpgology sagittal balance degerative retrolistesis anterolisthess pelvic incidience 척주골반 형태 시상균형 척추 후방전위증 척추 전방전위증 골반 입사각 Study Design: Retrospective analysis of a prospectively collected patient database. Objective: to investigate the spinopelvic morphology and global sagittal balance of degenerative retrolisthesis, and to determine whether retrolisthesis is a result of spinopelvic morphology or a compensatory mechanism of global sagittal balance. Summary of Background Data: We investigated the spinopelvic morphology and global sagittal balance of patients with a degenerative retrolisthesis or anterolisthesis. A total of 269 consecutive patients with a degenerative spondylolisthesis were included in this study. There were 95 men and 174 women with a mean age of 64.3 years (SD 10.5; 40 to 88). A total of 106 patients had a pure retrolisthesis(R group), 130 had a pure anterolisthesis (A group), and 33 had both (R+A group). Results: A backward slip was found in the upper lumbar levels (mostly L2 or L3) with an almost equal gender distribution in both the R and R+A groups. The pelvic incidence and sacral slope of the R group were significantly lower than those of the A (both p < 0.001) and R+A groups (both p < 0.001). The lumbar lordosis of the R+A group was significantly greater than that of the R (p = 0.025) and A groups (p = 0.014). The C7 plumb line of the R group was located more posteriorly than that of the A group (p = 0.023), but was no different from than that of the R+A group (p = 0.422). The location of C7 plumb line did not differ between the three groups (p = 0.068). The spinosacral angle of the R group was significantly smaller than that of the A group (p < 0.001) and R+A group (p < 0.001). Conclusions: Our findings imply that there are two types of degenerative retrolisthesis: one occurs primarily as a result of degeneration in patients with low pelvic incidence, and the other occurs secondarily as a compensatory mechanism in patients with an anterolisthesis and high pelvic incidence. ABSTRACT ⅰ TABLE OF CONTENTS ⅲ LIST OF FIGURES ⅳ LIST OF TABLES ⅴ Ⅰ. INTRODUCTION 1 Ⅱ. MATERIALS AND METHODS 4 Ⅲ. RESULTS 8 Ⅳ. DISCUSSION 13 Ⅴ. CONCLUSION 17 REFERENCES 18 국문요약 22 Master 2015-10-29T02:07:28Z 2015-10-29T02:07:28Z 2015 2015 Thesis Theses http://repository.ajou.ac.kr/handle/201003/11850 http://dcoll.ajou.ac.kr:9080/dcollection/jsp/common/DcLoOrgPer.jsp?sItemId=000000019034 000000019034 en