Spine surgery follow-up study on screw loosening
Part of Bones, joints & muscles clinical trials.
This study looks back at patients who had spinal fusion surgery to see if the top screws become loose over time. It reviews existing medical records and X-rays to learn more, which could help improve future surgeries.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You were 18 or older when you had the spine surgery
- Your surgery fused part of your lower or mid back (thoracolumbar spine) with screws on both sides at the top of the fused area
- If your fusion included the sacrum (the base of the spine), it had to be 3 or fewer levels, unless you also had pelvic fixation (screws in the pelvis)
- If your fusion included 4 or more levels down to the sacrum, you must have had pelvic fixation
- You had follow-up X-rays at least 12 months after surgery
- You did not have high-grade spondylolisthesis (a severe slipped vertebra), a spinal tumor, or active cancer at the time of surgery
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
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