Bio-Absorbable Hardware: Will We Ever Have Screws That Disappear Once the Bone Heals?

    May 18, 2025

    Orthopedic and spinal surgeries often rely on metal screws, plates, and rods to stabilize bones while they heal. While highly effective, permanent hardware can sometimes cause long-term irritation, interfere with imaging, or require removal in rare cases. At IGEA Brain, Spine, Pain & Orthopedics, our surgeons are following advancements in bio-absorbable hardware, which could one day allow implants to naturally dissolve once healing is complete.

    What Is Bio-Absorbable Hardware?

    Bio-absorbable screws, plates, and rods are made from specialized polymers or composite materials that gradually break down in the body while providing the necessary stability for bone healing. Over time, the hardware is replaced by the patient's own bone tissue, eliminating the need for a second surgery to remove implants.

    Advantages of Bio-Absorbable Hardware

    • No permanent metal left behind – reduces long-term irritation or hardware prominence
    • Eliminates removal surgeries – avoids additional procedures and recovery time
    • Compatible with imaging – less interference with MRI or CT scans
    • Gradual load transfer – as the implant absorbs, stress gradually shifts to the healed bone, promoting natural remodeling

    Current Limitations

    While promising, bio-absorbable implants are still evolving:

    • Strength and durability: Current materials may not provide sufficient long-term support for very large or complex spinal constructs.
    • Rate of absorption: Must match bone healing time; too fast can risk instability, too slow diminishes benefits.
    • Biocompatibility: Some patients may experience mild inflammatory reactions as the material degrades.
    • Availability: Limited use in complex spine surgeries; most common in pediatric or small joint procedures.

    The Future of Spine Surgery Hardware

    Research is advancing rapidly:

    • Poly-L-lactic acid (PLLA) screws and rods are already used in select orthopedic cases.
    • Composite materials with calcium phosphate are being developed for stronger bone integration.
    • Patient-specific bio-absorbable implants may one day allow customized, temporary stabilization for complex spine or cranial procedures.

    Contact IGEA for Advanced Spine Care

    If you are exploring spinal stabilization options, including emerging technologies, contact IGEA Brain, Spine, Pain & Orthopedics. Our specialists stay at the forefront of surgical innovation, balancing safety, effectiveness, and recovery.