Andrew Ellis

Royal North Shore Hospital, Sydney, New South Wales, Australia

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Publications (1)2.11 Total impact

  • [Show abstract] [Hide abstract]
    ABSTRACT: Audible squeaking in total hip replacements with ceramic-on-ceramic bearings is a rare problem. Acetabular component orientation was compared for 17 squeaking hips and 17 matched controls. Ninety-four percent of control hips were in a range of 25 degrees +/- 10 degrees anteversion and 45 degrees +/- 10 degrees inclination, but only 35% of squeaking hips were in this range (P = .0003). Eight hips squeak with bending. Four hips squeak with walking, and 5 hips squeak after prolonged periods of walking. Hips that squeaked with walking had acetabular components that were more anteverted (40 degrees ) than hips that squeaked with bending (19 degrees ) (P = .001) or prolonged walking (18 degrees ) (P = .020). The hips started squeaking after an average of 14 months. Patients with squeaking hips were younger, heavier, and taller than patients with silent hips.
    The Journal of Arthroplasty 07/2007; 22(4):496-503. · 2.11 Impact Factor

Publication Stats

72 Citations
2.11 Total Impact Points

Top Journals


  • 2007
    • Royal North Shore Hospital
      Sydney, New South Wales, Australia