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Bone mineral density measurement of screw area in posterior lumbar surgery for screw anchorage ability: based on imaging and biomechanical analysis

Bone mineral density measurement of screw area in posterior lumbar surgery for screw anchorage ability: based on imaging and biomechanical analysis

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2400080366
Enrollment
Unknown
Registered
2024-01-26
Start date
2023-10-07
Completion date
Unknown
Last updated
2024-01-28

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

Conditions

Osteoporosis

Interventions

Screw loosening group/ Non-screw loosening group:None

Sponsors

Affiliated Hospital of Southwest Medical University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
49 Years to 82 Years

Inclusion criteria

Inclusion criteria: 1. Patients who undergo bilateral pedicle screw fixation of PLIF due to lumbar disc herniation, spinal stenosis, spondylolisthesis and other lumbar disc degenerative diseases; 2. Patients undergo anteroposterior lateral X-rays during 1-year follow-up.

Exclusion criteria

Exclusion criteria: 1. Patients with a history of lumbar spine surgery; 2. Patients with primary or metastatic spinal tumors, lumbar tuberculosis, rheumatic immune diseases, and secondary osteoporosis caused by drugs or other metabolic diseases; 3. Patients who underwent lumbar revision surgery due to complications other than screw loosening within 12 months of clinical follow-up; 4. The patient lost one year of follow-up.

Design outcomes

Primary

MeasureTime frame
CT Hausfeld unit;—

Countries

China

Contacts

Public ContactZan Chen

Affiliated Hospital of Southwest Medical University

501174952@qq.com+86 158 8197 8171

Outcome results

None listed

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