posterior spinal fusion
Also written as: PSF — posterior spinal fusion
Surgical technique achieving bony union between vertebrae through posterior approach with instrumentation and bone grafting.
Full Definition
A spinal fusion technique performed through a posterior approach, involving the placement of bone graft material and typically instrumentation such as pedicle screws and rods to achieve arthrodesis between vertebral segments. The procedure involves decorticating the posterior elements, placing autograft or allograft bone, and applying rigid instrumentation to maintain alignment during the fusion process. Posterior spinal fusion can be performed for various conditions including degenerative disc disease, spondylolisthesis, deformity correction, and trauma. The technique allows for excellent visualization of neural structures and effective deformity correction.
Usage
Usage note: Distinguish from decompression alone; fusion implies intent for bony union.
In Context
- "The patient underwent L4-S1 posterior spinal fusion with pedicle screw instrumentation." — operative summary
- "Posterior spinal fusion achieved solid arthrodesis at six-month follow-up CT scan." — follow-up report