Epidural AbscessAbscessEpidural SpaceDiscitisSpinal DiseasesOsteomyelitisDecompression, SurgicalSpinal Cord DiseasesStaphylococcal InfectionsBrain AbscessMagnetic Resonance ImagingLiver AbscessSpinal CordPsoas AbscessStaphylococcus aureusAnti-Bacterial AgentsAnalgesia, EpiduralStreptococcus milleri GroupLaminectomyAbdominal AbscessLung AbscessAnesthesia, EpiduralSpinal Cord InjuriesCervical Vertebrae