spinopelvic parameters
Radiographic measurements that assess the relationship between spinal and pelvic alignment for surgical planning.
Full Definition
A comprehensive set of radiographic measurements used to evaluate the complex relationship between spinal alignment and pelvic morphology. Key parameters include pelvic incidence (PI), pelvic tilt (PT), sacral slope (SS), lumbar lordosis (LL), and sagittal vertical axis (SVA). These measurements are essential for understanding normal and pathological sagittal alignment, planning corrective surgery for adult spinal deformity, and predicting postoperative outcomes. Spinopelvic mismatch, where lumbar lordosis is inadequate for a patient's pelvic morphology, is associated with poor functional outcomes and adjacent segment disease.
Usage
Usage note: Include specific parameter values (PI, PT, SS, LL) in documentation.
In Context
- "Preoperative analysis of spinopelvic parameters revealed significant sagittal imbalance requiring correction." — surgical planning note
- "Normal spinopelvic parameters were restored following multilevel lumbar fusion with lordotic correction." — postoperative assessment