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[Experience with the internal splinting method (endoprosthesis) (author's transl)]

K Maar, M Stosch

    Der Urologe. Ausg. A
    |March 1, 1982
    PubMed
    Summary

    Internal splints, like the double-J ureteral stent, provide effective urinary diversion for various conditions. Silicone and siliconized polyvinyl chloride splints minimize encrustation, ensuring long-term therapeutic benefits.

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    Area of Science:

    • Urology
    • Biomaterials Science

    Background:

    • Internal splints, specifically endoprostheses, have been utilized for two decades for internal urinary diversion.
    • This method addresses kidney dilation caused by gynecological, prostatic, and bladder cancers.
    • Pyeloplasties, complex stone surgeries, and retroperitoneal fibrosis are also indications for pyelovesical splinting.

    Observation:

    • Scanning electron microscopy was employed to evaluate splint surfaces.
    • Incrustations were observed to be rare on siliconized polyvinyl chloride (PVC) splints.
    • The "pig-tail" or double-J ureteral stent, made of pure silicone, demonstrated minimal to no incrustation.

    Findings:

    • Siliconized PVC splints significantly reduce or eliminate incrustations.
    • Pure silicone double-J ureteral stents are well-suited for extended therapeutic use.
    • The choice of splint material impacts the incidence of encrustation.

    Implications:

    • The findings support the long-term use of specific internal splint materials in managing complex urological conditions.
    • Minimizing incrustation enhances the efficacy and duration of urinary diversion therapy.
    • Material selection is crucial for improving patient outcomes in cases of cancer, stones, and fibrosis.

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