Abstract
BackgroundTo investigate the incidence of scoliosis and trunk shift in patients with LDH (lumbar disc herniation) and analyze the differences in spinopelvic alignment among patients with or without trunk shift and non-symptom controls.Materials and methodsAll included subjects had standard upright antero-posterior and lateral radiographs of the whole spine taken. Evidence of disc herniation was confirmed by computed tomography or magnetic resonance imaging. The parameters measured included trunk shift and Cobb angle, TK (thoracic kyphosis), TLK (thoraco-lumbar junction kyphosis), LL (lumbar lordosis), PI (pelvic incidence), SS (sacral slope), PT (pelvic tilt) and SVA (sagittal vertical axis).ResultsSixty-eight patients with LDH and 61 controls were included. There were significantly more male patients with trunk shift than the patients without trunk shift. Forty-two patients had curve magnitudes ranging from 5 to 38°. The trunk shift ranged from 0.5 to 7.3 cm. A total of 54.76% of patients had a disc herniation on the concave side of the main curve. Fifty percent of patients showed a trunk shift towards the opposite side of disc herniation. There were significant differences in spinopelvic parameters among groups. Significant correlations were also observed between several spinopelvic parameters in the three groups. However, the degrees of correlations among the spinopelvic parameters differed among the three groups.ConclusionSpinal sagittal morphology in LDH patients with trunk shift exhibits a more anterior shift of the C7 plumb line, less LL, and a more horizontal sacrum. Correlation analysis indicated a disharmonious spinopelvic interaction and a change in the compensatory model in patients with LDH.
Highlights
To investigate the incidence of scoliosis and trunk shift in patients with Lumbar disc herniation (LDH) and analyze the differences in spinopelvic alignment among patients with or without trunk shift and non-symptom controls
There have been a few studies about spinopelvic balance and the relationship among those parameters in patients with LDH, no study focussed on the differences in spinopelvic alignment between patients with/without scoliosis or trunk shift caused by LDH has been reported
The present study prospectively studied the incidence of scoliosis and trunk shift in patients with LDH and analyzed the differences of spinopelvic alignment among patients with or without trunk shift and non-symptom controls, aiming to study
Summary
To investigate the incidence of scoliosis and trunk shift in patients with LDH (lumbar disc herniation) and analyze the differences in spinopelvic alignment among patients with or without trunk shift and non-symptom controls. Patients with LDH may complain of paravertebral muscle pain, leg pain, walking difficulty, scoliosis, trunk shift and spinal sagittal alignment imbalance, which produce many problems to both individuals and society [1, 2]. Scoliosis and trunk shift have been found in both adolescent and adult patients with LDH [3, 4]. The present study prospectively studied the incidence of scoliosis and trunk shift in patients with LDH and analyzed the differences of spinopelvic alignment among patients with or without trunk shift and non-symptom controls, aiming to study
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