Lumbar facet joint effusion in MRI: a sign of instability in degenerative spondylolisthesis?

摘要

PurposeThe term “segmental instability” of the lumbar spine is not clearly defined, especially as it relates to degenerative spondylolisthesis (DS) and rotational translation (RT). We investigated whether facet joint effusion on conventional supine MRI indicated increased abnormal motion in DS and RT.