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Related Experiment Videos

The Liverpool Mark II knee prosthesis. A preliminary report.

M E Cavendish, J T Wright

    The Journal of Bone and Joint Surgery. British Volume
    |August 1, 1978
    PubMed
    Summary

    The Liverpool Mark II knee joint system demonstrated excellent early outcomes in knee replacement surgery. Most patients experienced pain relief and restored function, indicating a promising new treatment option.

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    Area of Science:

    • Orthopedic Surgery
    • Biomedical Engineering

    Background:

    • Knee joint replacements aim to restore function and alleviate pain in patients with severe knee damage.
    • Existing prostheses and surgical techniques present challenges in achieving optimal articulation and accurate implant placement.

    Purpose of the Study:

    • To report preliminary results of knee joint replacements using the Liverpool Mark II knee joint system.
    • To evaluate the efficacy and safety of this novel bicondylar prosthesis and its associated stereotactic instruments.

    Main Methods:

    • Implantation of the Liverpool Mark II bicondylar prosthesis in sixty-two knees across forty-two patients.
    • Utilized stereotactic instruments for accurate prosthesis insertion via meniscectomy-type incisions.
    • Focused on achieving near-normal articulation and operational simplicity.

    Main Results:

    • Fifty-six knees were rendered painless, with four others reporting only slight pain post-operation.
    • Full knee extension was achieved in fifty-eight knees.
    • No valgus or varus deformity was observed, and all knees exhibited absence of collateral laxity, with two failures reported.

    Conclusions:

    • The Liverpool Mark II knee joint system shows highly encouraging early results for knee replacement.
    • The prosthesis offers near-normal articulation and a simplified surgical procedure.
    • These preliminary findings suggest the system is a viable and effective option for knee arthroplasty.

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