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Lumbosacral arthrodesis using pedicular screws and ringed rods
J L Beguiristain1, C Villas, R Preite
1Department of Orthopaedic Surgery and Traumatology, School of Medicine, University of Navarrie, Pamplona, Spain.
Summary
Posterior lumbosacral fusion using CUN pedicle rod fixation achieved a 93.5% fusion rate in patients with lumbar instability and chronic low back pain. This method offers satisfactory stability and comparable clinical outcomes to other common spinal fixation systems.
Area of Science:
- Orthopedics
- Neurosurgery
- Spinal Surgery
Background:
- Chronic low back pain and deformity due to lumbar instability present significant clinical challenges.
- Nontraumatic lumbar pathologies require effective surgical stabilization techniques.
Purpose of the Study:
- To evaluate the efficacy and safety of posterior lumbosacral fusion with Clinic of the University of Navarre (CUN) pedicle rod fixation.
- To assess fusion rates, complication incidence, and clinical outcomes in patients with lumbar instability.
Main Methods:
- A cohort of 61 patients with lumbar instability and chronic low back pain underwent posterior lumbosacral fusion with CUN pedicle rod fixation.
- Follow-up averaged 36 months, with evaluation via plain and functional radiographs and an analogue pain scale.
Main Results:
- A high fusion rate of 93.5% was achieved.
- Neurological complications occurred in 3.3% of patients, and screw failure incidence was 2.3%.
- Excellent or good clinical results were reported by 76% of patients.
Conclusions:
- CUN pedicle rod instrumentation provides a versatile and stable internal fixation system for posterior lumbosacral fusion.
- The clinical outcomes are comparable to those achieved with other commonly used spinal hardware, suggesting its efficacy in managing lumbar instability.