Pelvic position and movement during hip replacement

G Grammatopoulos, H G Pandit, R da Assunção, A Taylor, P McLardy-Smith, K A De Smet, D W Murray, H S Gill

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The orientation of the acetabular component is influenced not only by the orientation at which the surgeon implants the component, but also the orientation of the pelvis at the time of implantation. Hence, the orientation of the pelvis at set-up and its movement during the operation, are important. During 67 hip replacements, using a validated photogrammetric technique, we measured how three surgeons orientated the patient's pelvis, how much the pelvis moved during surgery, and what effect these had on the final orientation of the acetabular component. Pelvic orientation at set-up, varied widely (mean (± 2, standard deviation (sd))): tilt 8° (2sd ±32), obliquity -4° (2sd ±12), rotation -8° (2sd ±14). Significant differences in pelvic positioning were detected between surgeons (p  lateral), procedure (hip resurfacing > total hip replacement) and type of support (p
Original languageEnglish
Pages (from-to)876-883
Number of pages8
JournalThe Bone & Joint Journal
Issue number7
Publication statusPublished - Jul 2014

ASJC Scopus subject areas

  • Biomedical Engineering
  • Orthopedics and Sports Medicine


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