Paraspinal muscle, facet joint, and disc problems: risk factors for adjacent segment degeneration after lumbar fusion.

BACKGROUND CONTEXT Adjacent segment degeneration (ASD) is one of the major complications after lumbar fusion. Several studies have evaluated the risk factors of ASD. Although the paraspinal muscles play an important role in spine stability, no study has assessed the relationship between paraspinal muscle atrophy and the incidence of ASD after lumbar fusion… CONTINUE READING