The influence of knee bolster on lumbar spinal stenosis parameters on MR images

ConclusionsMR images at evaluated spinal levels taken without knee bolster showed greater correlations of the spinal canal cross-sectional area with the Oswestry score than ones with knee bolster. Thus, one may prefer MR images acquired without a bolster below the knee compared to an MRI with a knee bolster.
Source: Skeletal Radiology - Category: Radiology Source Type: research