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Pedicle screws loosening after posterior lumbar spinal surgery in patients with lumbar degenerative diseases: an observational cohort study

Pedicle screws loosening after posterior lumbar spinal surgery in patients with lumbar degenerative diseases: an observational cohort study

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR1900022305
Enrollment
Unknown
Registered
2019-04-03
Start date
2019-05-01
Completion date
Unknown
Last updated
2019-04-08

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Lumbar degenerative disease

Interventions

Grouping by risk factors:posterior lumbar spinal surgery

Sponsors

Guangzhou Panyu Hospital of Chinese Medicine
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 100 Years

Inclusion criteria

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

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.

Design outcomes

Primary

MeasureTime frame
Pedicle screw loosening;—

Countries

China

Contacts

Public ContactDonglin Cai
tonycai33@126.com+86 18138743312

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026