Abstract
The Biostop G cement restrictor (Bioland Laboratories, Toulouse, France) is a flexible ridged plug made of a polymer of gelatin (50%), glycerol (30%), water (20 %), and methyparahydroxybenzoate (2 %) (Fig. 1). Animal implantat ion studies performed on rabbits by the manufac turer (P Frayssinet, unpublished data) indicate that the plug is degraded by liquefaction, disappearing in 5 to 10 hours, and does not produce osteolysis, a local macrophage, or tissue reaction. The gelatin component appears to be metabolized in situ by extracellular collagenases, whereas the glycerol is t ransported by lymphatics to the liver, where it is metabolized. The Biostop G cement restrictor is made in 7 different sizes, 8 to 20 mm diameter in 2 -mm increments, to fit femoral canals of different diameters. A system of sounds is used to judge the appropriate diameter of plug to be used, allowing slight (2 mm) oversizing because the plug is flexible and ridged and therefore compressible in a transverse direction to ensure a tight fit. A calibrated metal insertion device is used to advance the plug the appropriate distance into the medullary canal.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
