Pedicle screws loosening after posterior lumbar spinal surgery in patients with lumbar degenerative diseases: an observational cohort study
Not Applicable
- Conditions
- umbar degenerative disease
- Registration Number
- ITMCTR1900002264
- Lead Sponsor
- Guangzhou Panyu Hospital of Chinese Medicine
- Brief Summary
Not available
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- Pending
- Sex
- All
- Target Recruitment
- Not specified
Inclusion Criteria
(1) aged =18 years;
(2) presence of a degenerative disease of the lumbar spine with unstable spinal segments, which was confirmed by functional radiograms or having low-grade symptomatic spondylolisthesis;
(3) indications for spinal instrumentations were: neurological deficit; claudication; axial and radicular pain syndromes with visual analog scale (VAS) over 4 and Oswestry Disability Index (ODI) over 40% resistant to repeated conservative treatment.
Exclusion Criteria
(1) Patients with high-grade spondylolisthesis (grades 3 and 4);
(2) Evidence of tumor-related lesions of the lumbar spine;
(3) Patients with different types of fusion applied on different levels.
Study & Design
- Study Type
- Observational study
- Study Design
- Not specified
- Primary Outcome Measures
Name Time Method Pedicle screw loosening;
- Secondary Outcome Measures
Name Time Method