• Eur Spine J · May 2019

    Lumbar spine posture and spinopelvic parameters change in various standing and sitting postures.

    • Abdulhamit Misir, Turan Bilge Kizkapan, Suleyman Kasim Tas, Kadir Ilker Yildiz, Mustafa Ozcamdalli, and Mehmet Yetis.
    • Department of Orthopaedics and Traumatology, Sanliurfa Training and Research Hospital, Akpiyar mah. 4061. Sk. Yasamkent park evleri no: 29 B blok daire:21 Karakopru, Sanliurfa, Turkey. misirabdulhamitmd@gmail.com.
    • Eur Spine J. 2019 May 1; 28 (5): 1072-1081.

    PurposeThis study aimed to compare differences in lumbosacral and spinopelvic parameters between pain developers and non-pain developers as well as the effects of various posture changes.MethodsA total of 38 consecutive participants, 20 standing-induced low back pain developers (mean age: 27.7 ± 5.3; mean BMI: 22.64 ± 2.95) and 18 non-pain developers (mean age: 29.0 ± 7.5; mean BMI: 24.2 ± 1.87) (p > 0.05), were prospectively evaluated. Six sagittal plane radiographs were taken. Upright standing posture was used as the reference posture. Lumbar lordosis, lumbosacral lordosis, L1/L2 and L5/S1 intervertebral (IV) joint angles, pelvic incidence, pelvic tilt and sacral slope were measured on each radiograph.ResultsThere were no significant differences in terms of age, BMI, SF-36 score, or Oswestry Disability Index scores between pain developer and non-pain developer groups (p > 0.05). Pain developers had significantly larger lumbar lordosis, larger L1/L2 intervertebral angles, larger pelvic incidences and sacral slopes in all postures (p < 0.05). The contribution of L5/S1 intervertebral angle to lumbar flexion was higher than that of the L1/L2 intervertebral angle during stair descent, the sitting and the leaning forward while sitting postures (p < 0.05).ConclusionThe current study supports the assertion that increased lumbar lordosis is associated with increased pain. Lumbar spine angles change in various postures. The changes were more prominent in pain developers than in non-pain developers. Larger lumbar lordosis due to larger pelvic incidence may be a risk factor for the development of standing-induced low back pain. These slides can be retrieved under Electronic Supplementary Material.

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