[Delayed abscesses after unstable pelvic ring fractures of the lumbar spine. Case report from the viewpoint of the expert witness].

As a result of medical certificates concerning traumatology and internal medicine the course of disease of a 51-year-old man after serious contusion with pelvic ring dislocation and lumbar vertebral fractures with extensive retroperitoneal abscesses is reported whereby the diagnosis and surgery of this complication has followed only five years after the accident. The significance of nosocomial infections by staphylococcus aureus in connection with closed injuries is pointed out; qualification and quality of the medical certificates are also referred to.