Sagittal Alignment
Conditions
Keywords
sagittal alignment, sitting, spinal fusion
Brief summary
This study is aimed to demonstrate the standing and sitting spino-pelvic sagittal alignment in Chinese population, then to explore the influence of spinal fusion on the changes when moving from standing to sitting positon.
Interventions
RADIATIONwhole spine X-ray
Group 1 underwent whole spine X-ray in standing and sitting positions.
Sponsors
Peking University Third Hospital
Study design
Observational model
CASE_CONTROL
Time perspective
OTHER
Eligibility
Sex/Gender
ALL
Age
42 Years to 85 Years
Healthy volunteers
Yes
Inclusion criteria
Group 1 90 Healthy Volunteers - age \>40 years, no history of neck pain, back pain, or radicular pain in the previous six months, no history of chronic neck or back pain lasting more than three months, no history of spinal disease or surgery, no spinal deformity or lumbar spondylolisthesis, no history of hip or knee arthroplasty or other realignment surgery of the lower extremities, and no history of neuromuscular disorders. Group 2 126 patients Clinical diagnosis of Lumbar degenerative disease
Exclusion criteria
Group 1 90 Healthy Volunteers \- pregnant Group 2 126 patients * Neuromuscular diseases * Arthritis * Tumor * A previous history of lumbar fusion surgery
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Group 2 The sagittal spinal parameters in degrees | 3 months after surgery | The parameters included TPA (T1 pelvic angle,the angle between the line from the axis of the femoral head to the center of T1 and the line from the axis of the femoral head to the midpoint of the S1 endplate), lumbar lordosis (LL,the angle between the upper endplate of L1 and S1), thoracic kyphosis (TK,The angle between the upper endplate of T4 and the lower endplate of T12), pelvic incidence (PI,The angle between the line perpendicular to the midpoint of the sacral plate and the line connecting this to the midpoint of the hip axis), pelvic tilt (PT,The angle between the line from the middle of the sacral plate to the middle of the hip axis and the vertical line), sacral slope (SS,The angle between the sacral endplate and the horizontal line) |
| Group 1 The sagittal spinal parameters in degrees | 6 months after study started | The parameters included TPA (T1 pelvic angle,the angle between the line from the axis of the femoral head to the center of T1 and the line from the axis of the femoral head to the midpoint of the S1 endplate), lumbar lordosis (LL,the angle between the upper endplate of L1 and S1), thoracic kyphosis (TK,The angle between the upper endplate of T4 and the lower endplate of T12), pelvic incidence (PI,The angle between the line perpendicular to the midpoint of the sacral plate and the line connecting this to the midpoint of the hip axis), pelvic tilt (PT,The angle between the line from the middle of the sacral plate to the middle of the hip axis and the vertical line), sacral slope (SS,The angle between the sacral endplate and the horizontal line) |
| Group 1 The sagittal spinal parameters in millimeter | 6 months after study started | SVA (sagittal vertical axis, The offset between the center of C7 and the plumb line drawn from posterosuperior corner of S1) |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Group 2 Disability assessed by the Oswestry Disability Index (ODI) | 3 months after surgery | The Oswestry Disability Index (ODI) (0-100) is used to assess disability.Higher scores mean a worse outcome. |
| Group 2 Back pain assessed by the VAS | 3 months after surgery | The Visual Analog Scale (0-10) is used to evaluate back pain.Higher scores mean a worse outcome |
| Group 2 Leg pain assessed by the VAS | 3 months after surgery | The Visual Analog Scale (0-10) is used to evaluate leg pain.Higher scores mean a worse outcome. |
Countries
China
Outcome results
None listed