Polyetheretherketone and Its Composites for Bone Replacement and Regeneration

Area of Science:

• Biomaterials Science
• Tissue Engineering
• Polymer Science

Background:

• Polyetheretherketone (PEEK) is utilized in implants for its radiolucency, chemical stability, and sterilization resistance.
• PEEK is suitable for patient-specific implants in craniofacial and orbital reconstruction via additive manufacturing.
• PEEK's bioinert nature and insufficient mechanical properties limit its use in hard and soft tissue engineering.

Purpose of the Study:

• Review recent advances in PEEK and its composites for hard and soft tissue engineering.
• Discuss strategies to enhance PEEK's osseointegration and mechanical performance.
• Explore the potential of PEEK-based materials for bone and tissue regeneration.

Main Methods:

• Review of literature on PEEK development, preparation, and properties.
• Analysis of surface modification techniques (roughening, coating) for improved osseointegration.
• Investigation of composite strategies using hydroxyapatite (HA) and carbon fibers to enhance mechanical properties.

Main Results:

• Surface modifications and HA addition improve PEEK's osseointegration.
• Carbon fiber reinforcement significantly enhances PEEK's stiffness and load-bearing capacity, mimicking cortical bone.
• Blending PEEK with hydrophilic polymers creates biodegradable composites for bone scaffolds.

Conclusions:

• PEEK composites offer tunable properties for diverse tissue engineering applications.
• Carbon fiber reinforced PEEK is a viable option for load-bearing orthopedic implants.
• Biodegradable PEEK blends show potential for bone tissue engineering scaffolds.