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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2015.1
- 수록면
- 352 - 360 (9page)
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초록· 키워드
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Study Design: A retrospective comparative study. Purpose: To provide an ideal correction angle of lumbar lordosis (LL) in degenerative flat back deformity. Overview of Literature: The degree of correction in degenerative flat back in relation to pelvic incidence (PI) remains controversial. Methods: Forty-nine patients with flat back deformity who underwent corrective surgery were enrolled. Posterior-anterior-posterior sequential operation was performed. Mean age and mean follow-up period was 65.6 years and 24.2 months, respectively. We divided the patients into two groups based on immediate postoperative radiographs–optimal correction (OC) group (PI–9°≤LL<PI+9°) and under-correction (UC) group (LL<PI–9°). We also classified the patients according to the PI of each patient–low PI group (PI<55°) and high PI group (PI≥55°). Radiological and clinical results were analyzed. Results: Patients in OC group had significantly less correction loss and maintained normal sagittal alignment (sagittal vertical axis<5 cm), as compared to patients in UC group (p <0.05). LL of low PI group significantly maintained within 9° better than high PI group (p <0.05). Oswestry disability index (ODI) significantly decreased at last follow-up, as compared to preoperative state. However, there was no significant difference in last follow-up ODI between the groups. Conclusions: In flat back deformity, correction of LL to within 9° of PI will result in better sagittal balance. Thus, we recommend sufficient LL to prevent correction loss, especially in patients with high PI.
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