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The impact of spino-pelvic parameters on pathogenesis of lumbar disc herniation

B Pourabbas Tahvildari¹, Z Masroori¹, M A Erfani¹

¹Bone and Joint Diseases Research Center, Department of Orthopedic Surgery, Chamran Hospital, Shiraz University of Medical Sciences, Shiraz, Iran.

Musculoskeletal Surgery

|January 6, 2021

Abstract

Purpose:

Controversies exist on the relative contribution of sagittal spino-pelvic alignment on pathogenesis of lumbar disc herniation.

Methods:

Spinopelvic alignment parameters, pelvic incidence, pelvic tilt, sacral slope, pelvic radius-S1 end-plate ratio and pelvic radius-S1 angle, in 52 patients with lumbar disc herniation were compared with the same measurements in 43 healthy adult volunteers.

Results:

Statistical analysis revealed significant difference in pelvic incidence and sacral slope between patients with lumbar disc herniation and normal population.

Conclusion:

Patients with lumbar disc herniation have a more vertical sacrum compared to the normal population which may result in higher intradiscal pressure in these patients.

Keywords:

Lumbar disc herniation Pelvic incidence Pelvis Sagittal alignment Spine

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