Fatal fat embolism associated with polymethyl methacrylate bone cement

Area of Science:

• Medical procedures
• Surgical complications
• Forensic pathology

Background:

• Polymethyl methacrylate (PMMA) cement is widely used in orthopedic and spinal surgeries.
• Complications associated with PMMA use, though rare, can be severe.
• Understanding the causes of mortality in such cases is crucial for improving patient safety.

Observation:

• Three cases of patient mortality following procedures utilizing PMMA cement were identified.
• Autopsy examinations revealed varying degrees of pulmonary fat embolism in these patients.
• Clinical data indicated significant operative blood loss in all reported fatalities.

Findings:

• Pulmonary fat embolism was a consistent finding but not the sole or primary cause of death.
• The major contributing factor to mortality in these cases was the failure to correct substantial operative blood loss.
• This suggests that hemodynamic instability from hemorrhage may overshadow other potential complications.

Implications:

• Reinforces the critical importance of meticulous surgical hemostasis and prompt blood loss management.
• Highlights the need for vigilance regarding potential PMMA-related complications, including fat embolism.
• Suggests that pre-existing conditions or surgical factors exacerbating blood loss may increase mortality risk despite PMMA use.