NCT04958590 - The Standing and Sitting Spino-pelvic Sagittal Alignment in Chinese Population | Crick

Overview

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.

Study Type

OBSERVATIONAL

Enrollment

216

Conditions

Sagittal Alignment

Interventions

whole spine X-rayRADIATION

Group 1 underwent whole spine X-ray in standing and sitting positions.

Eligibility

Sex: ALLMin age: 42 YearsMax age: 85 YearsHealthy volunteers:

Medical Language ↔ Plain English

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

Locations (1)

Peking University Third Hospital

Beijing, Beijing Municipality, China

Outcomes

Primary Outcomes

Group 2 The sagittal spinal parameters in degrees

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)

Time frame: 3 months after surgery

Group 1 The sagittal spinal parameters in degrees

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)

Time frame: 6 months after study started

Group 1 The sagittal spinal parameters in millimeter

SVA (sagittal vertical axis, The offset between the center of C7 and the plumb line drawn from posterosuperior corner of S1)

Time frame: 6 months after study started

Secondary Outcomes

Group 2 Disability assessed by the Oswestry Disability Index (ODI)

The Oswestry Disability Index (ODI) (0-100) is used to assess disability.Higher scores mean a worse outcome.