The use of bioabsorbable implants in spine surgery

Area of Science:

• Orthopedic Surgery
• Biomaterials Science
• Regenerative Medicine

Background:

• Bioabsorbable implants are increasingly used in spine surgery, offering an alternative to traditional metallic devices.
• These implants effectively mimic the stabilizing and grafting functions of metallic implants.
• Their use is expanding due to demonstrated efficacy in biomechanical and animal studies.

Purpose of the Study:

• To review the expanding role and efficacy of bioabsorbable implants in spinal surgery.
• To highlight their potential in promoting bone fusion and serving as carriers for grafting substances.
• To explore novel applications and future directions for bioabsorbable technology in treating spinal degenerative disease.

Main Methods:

• Review of biomechanical studies demonstrating implant stability in cervical and lumbar spine segments.
• Analysis of animal models evaluating interbody spacer function and bone fusion achievement.
• Examination of clinical studies investigating human applications and comparisons with metallic implants.

Main Results:

• Bioabsorbable implants provide effective stabilization for degenerative spinal motion segments.
• They function satisfactorily as interbody spacers and achieve successful bone fusion in animal models.
• Gradual resorption facilitates load transfer to graft materials, promoting fusion.

Conclusions:

• Bioabsorbable implants are a viable and effective alternative to metallic devices in spine surgery.
• Their properties, including gradual resorption and radiolucency, make them ideal for spinal degenerative disease.
• Future applications as carriers for biological agents like bone morphogenetic proteins are promising.