Cost-effectiveness of cranial implants compared with autologous bone grafts

Area of Science:

• Neurosurgery
• Health Economics
• Biomaterials Science

Background:

• Autografts were traditionally considered cost-effective for cranioplasty due to using the patient's own bone.
• However, autografts have a higher revision surgery rate, increasing overall healthcare costs.
• This study investigates the comparative cost-effectiveness of cranial implants versus autografts.

Purpose of the Study:

• To analyze the cost-effectiveness of cranial implants compared with autografts in cranioplasty procedures.
• To determine the overall financial implications of each grafting method.

Main Methods:

• Retrospective cohort study of 168 patients undergoing cranioplasty between 2014 and 2020.
• Cost data collected using diagnosis and treatment combination (DBC) codes.
• Incremental Cost-Effectiveness Ratio (ICER) calculated to compare implant vs. autograft costs and effects.

Main Results:

• Median total healthcare costs were significantly lower for cranial implants (€6460.64) compared to autografts (€12,075.01) (p < 0.001).
• The ICER indicated a saving of -€7663.22 per revision surgery avoided with cranial implants.
• Initial procedure costs were similar, but long-term costs favored implants.

Conclusions:

• Cranial implants are more cost-effective than autologous bone grafts for cranioplasty.
• Implants offer better clinical effectiveness by reducing revision surgery rates and associated costs.
• This challenges the traditional view of autografts as the most economical option.