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  • Title: Vascularity of the femoral head after Birmingham hip resurfacing. A technetium Tc 99m bone scan/single photon emission computed tomography study.
    Author: McMahon SJ, Young D, Ballok Z, Badaruddin BS, Larbpaiboonpong V, Hawdon G.
    Journal: J Arthroplasty; 2006 Jun; 21(4):514-21. PubMed ID: 16781403.
    Abstract:
    To investigate the vascularity of femoral heads after Birmingham hip resurfacing (BHR), we used a visual scale to assess technetium Tc 99m HDP planar and single photon emission computed tomography bone scans of 36 arthroplasties in 32 asymptomatic patients for an average of 26 months after BHR. The validity of this method was demonstrated by comparing levels of radiation detected from within and immediately adjacent to a BHR prosthesis placed on a technetium Tc 99m radioisotope tracer-filled hollow tube and further validated in vivo by comparing radiation levels from bilateral hip scans in human subjects with 2 normal hips and with unilateral BHR. All femoral heads scanned postoperatively appeared vascular. We speculate that preserved femoral head vascularity after BHR may be related to increased intraosseous blood supply from metaphyseal vessels in arthritic hips.
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