Poly(lactic-co-glycolic acid)-based composite bone-substitute materials

Area of Science:

• Biomaterials Science
• Orthopedic Surgery
• Regenerative Medicine

Background:

• Autologous and allogeneic bone grafts present limitations in clinical orthopedic bone defect repair.
• Poly(lactic-co-glycolic acid) (PLGA)-based materials are emerging as viable alternatives due to favorable properties.

Purpose of the Study:

• To comprehensively review PLGA-based artificial bone substitutes.
• To elaborate on their applications in bone regeneration, with and without bioactive factors.
• To discuss future challenges and opportunities in clinical translation.

Main Methods:

• Literature review of PLGA-based bone substitute materials.
• Analysis of composite materials incorporating organic and inorganic substances.
• Evaluation of applications in bone regeneration strategies.

Main Results:

• PLGA materials exhibit excellent biocompatibility, degradability, and mechanical properties.
• These materials effectively promote bone regeneration, with or without adjunct bioactive factors.
• Composite formulations enhance functional outcomes for bone defect repair.

Conclusions:

• PLGA-based materials represent a significant advancement in artificial bone substitutes.
• Further research and development are crucial for optimizing clinical applications.
• Addressing current challenges will unlock the full potential of PLGA in orthopedic regenerative medicine.