Are Use Of Screws Used In Thr

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    Are Screws Routinly Used To Fasten Acetabular Componet In THR ?

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  2. 5 Comments...

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    Quote from bahackett
    Are Screws Routinly Used To Fasten Acetabular Componet In THR ?
    It depends on the system used and surgeon preference. I will when I am done.
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    6.5mm cancellous screws are routinely used to secure a solid fixation of the acetabular cup. I haven't been involved in a Total Hip in the last 15 years where cement has been used. Believe me, with all the torque and pressure put on the metal cup, you want that acetabular replacement screwed in.
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    The joint would be too unstable without the screws.
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    Quote from hollyster
    The joint would be too unstable without the screws.
    Not true. While cementing is frowned upon, press fit cups with sharp ridges to keep it stable are used in certain systems.
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    I work in a small rural hosptial, but, over the years, I've done and seen a number of total hips.
    Different systems, Zimmer, Depuy, etc have their own strengths and weaknesses.
    Also, as with any surgery, pt selection is critical.
    Over the past several years, different ortho docs that have come through, seem to me, to be using less and less screws in the cups.
    Frankly, between bone cement and improvements in the cups, bio-ingrowth and all, cement/press fit seem to work just fine.
    Never say never of course, the rep brings in the acetabular stuff when we do total hips, and I know he still brings screws along....just in case.
    Mike


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