Spontaneous psoas hematoma following posterior lumbar fusion surgery: a mini literature review.

Background: Spontaneous psoas hematoma is a very rare clinical entity, and the pathogenesis and pathologic mechanisms of spontaneous psoas hematoma remain unclear, thus, it is of great value to explore.

Case Presentation: We encountered a patient who developed femoral nerve paralysis due to psoas muscle hematoma following posterior lumbar fusion surgery. A 69-year-old female with lumbar spinal canal stenosis underwent posterior lumbar fusion at the L3-4 and L4-5 levels.