The Association of Lumbosacral Sagittal Alignments and the Patterns of Lumbar Disc Degeneration (요천추의 시상면상 정렬과 요추 퇴행성 추간판 양상의 연관성)

LEE， CHONG SUH (이종서); CHUNG， SUNG SOO (정성수); 박세준; 조광희; 신성기

The Association of Lumbosacral Sagittal Alignments and the Patterns of Lumbar Disc Degeneration

Journal of Korean Society of Spine Surgery
Abbr : J Kor Spine Sur
2012, 19(4), pp.145-151
Publisher : Korean Society Of Spine Surgery
Research Area : Medicine and Pharmacy > Orthopedic Surgery

LEE， CHONG SUH ¹, CHUNG， SUNG SOO ¹, 박세준 ¹, 조광희 ², 신성기 ²

¹성균관대학교
²국립중앙의료원

Accredited

ABSTRACT

Study Design: Retrospective review and radiological analysis. Objectives: We investigated whether the lumbosacral sagittal curvature have any relation to the patterns of lumbar disc degeneration. Summary of Literature Review: Recently, there have been many studies on the correlations between the changes of lumbar disc degeneration and associated factors, such as age, gender, weight, occupation, cigarette smoking, and genetics; but, it is hard to find research into lumbosacral sagittal alignments. Materials and Methods: This study enrolled 117 young adult patients limited by age (18-35 years), BMD (<30kg/m2), no smoking,occupation except heavy worker, no prior lumbar surgery and no combined spinal deformity. By measuring the pelvic incidence, sacral slope, lumbar tilt angle, lumbar lordosis and lumbar axis indicating the parameters of sagittal alignments, we investigated the correlation between the number and severity of lumbar disc degeneration and the number of herniated intervertebral discs. Results: This study found a moderate correlation between pelvic incidence, sacral slope, lumbar lordosis, and the number of lumbar degenerative disc (r =-0.451, p <0.001; r =-0.433, p <0.001; r =-0.425, p <0.001). We calculated the most proper cut-off value of pelvic incidence associated with more than three segments of multiple lumbar disc degeneration, using a minimum p-value approach. Conclusions: As pelvic incidence, sacral slope, and lumbar lordosis indicating the parameters of lumbosacral sagittal alignments get smaller, the numbers of lumbar disc degenerations and herniated intervertebral discs increase. When pelvic incidence is below 45.6degrees, it is more likely for degenerative changes of lumbar disc to affect more than three segments.

KEYWORDS

Lumbar disc degeneration, Lumbosacral sagittal alignment, Pelvic incidence

Citation status

* References for papers published after 2023 are currently being built.

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