Research synthesis of recommended acetabular cup orientations for total hip arthroplasty

Harrison, Claire Louise and Thomson, Avril and Cutts, S and Rowe, Philip and Riches, Philip (2014) Research synthesis of recommended acetabular cup orientations for total hip arthroplasty. Journal of Arthroplasty, 29 (2). 377–382. ISSN 1532-8406

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    Abstract

    Total Hip Arthroplasty (THA) is regarded as one of the most successful surgical procedures of modern times yet continues to be associated with a small but significant complication rate. Many early failures may be associated with poor component positioning with, in particular, acetabular component orientation dependent on the subjective judgement of the surgeon. In this paper, we compare the manufacturers’ instructions on acetabular cup orientation with the literature-based recommended safety zones, by transforming them onto a single, clinically-relevant framework in which the different reference systems, safety guidelines and current instrumentation surgical techniques can be evaluated. The observed limited consensus between reflects ongoing uncertainty regarding the optimum acetabular component positioning that is probably responsible for a significant number of hip dislocations and early revisions. Our analysis suggests a new safety zone - the Strathclyde Safety Zone, SSZ (30° - 55° inclination and 5° - 30° anteversion) - defined in the operative reference frame, that encompasses other safety zones and which, incidentally, holds the majority of manufacturers’ guideline positions.

    Author(s):Harrison, Claire Louise ORCID logoORCID: https://orcid.org/0000-0001-9800-519X, Thomson, Avril ORCID logoORCID: https://orcid.org/0000-0002-9723-8028, Cutts, S, Rowe, Philip ORCID logoORCID: https://orcid.org/0000-0002-4877-8466 and Riches, Philip ORCID logoORCID: https://orcid.org/0000-0002-7708-4607
    Item type:Article
    ID code:44191
    Keywords:hip arthroplasty, acetabular cup orientations, Bioengineering, Bioengineering
    Subjects:Technology > Engineering (General). Civil engineering (General) > Bioengineering
    Department:Faculty of Engineering > Biomedical Engineering
    Faculty of Engineering > Bioengineering
    Faculty of Engineering > Design, Manufacture and Engineering Management
    Depositing user: Pure Administrator
    Date deposited:24 Jun 2013 13:35
    Last modified:17 Oct 2019 00:54
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/44191
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