4.3 Article

Evaluation of correlation between sagittal balance and plantar pressure distributions in adolescent idiopathic scoliosis: A pilot study

Journal

CLINICAL BIOMECHANICS
Volume 83, Issue -, Pages -

Publisher

ELSEVIER SCI LTD
DOI: 10.1016/j.clinbiomech.2021.105308

Keywords

Scoliosis; Postural balance; Gait; Pressure

Funding

  1. project of Shanghai Municipal Health Planning commission of China [201740087]

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The study found that lumbar lordosis was positively correlated with pelvic tilt and sacral slope; on the major curve side, pelvic tilt showed positive correlation with all baropodometric parameters; while thoracic kyphosis showed negative correlations with contact surface and weight percentage of the forefoot.
Background: To evaluate the correlation between baropodometric parameters and sagittal parameters for adolescent idiopathic scoliosis. Methods: 44 volunteers (7 males and 37 females) were recruited. All participants were diagnosed as adolescent idiopathic scoliosis by X-ray before baropodometric study. Sagittal parameters included thoracic kyphosis, lumbar lordosis, sagittal vertical axis, pelvic tilt, sacral slope and pelvic incidence. A static baropodometry was performed for each patient. The foot area was divided into four quadrants. The contact surface and weight percentage were measured. Findings: Lumbar lordosis was positively correlated to pelvic incidence, sacral slope and (P < 0.001, P < 0.001, respectively). On the major curve side, pelvic tilt showed a positive correlation with all baropodometric parameters (P < 0.05) except forefoot weight percentage. Thoracic kyphosis showed negative correlations with contact surface and weight percentage of the forefoot (P = 0.04, 0.02 respectively) but no correlation with any rearfoot feature. Lumbar lordosis, sagittal vertical axis, pelvic incidence and sacral slope were not in correlation with plantar pressure. On the opposite side, sagittal profile showed no obvious correlation with any baropodometric parameter. Interpretation: In scoliosis, sagittal balance is closely correlated to plantar pressure distributions. Baropodometry is a feasible method to assess sagittal balance.

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