Method of Fixation Does Not Influence the Overall Risk of Rerevision in First-time Cup Revisions

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Mohaddes, Maziar,1974Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för ortopedi,Institute of Clinical Sciences, Department of Orthopaedics (författare)

Method of Fixation Does Not Influence the Overall Risk of Rerevision in First-time Cup Revisions

Artikel/kapitelEngelska2013

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Ovid Technologies (Wolters Kluwer Health),2013

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LIBRIS-ID:oai:gup.ub.gu.se/175144
https://gup.ub.gu.se/publication/175144URI
https://doi.org/10.1007/s11999-013-2872-3DOI

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Språk:engelska

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BACKGROUND: During the last two decades, uncemented fixation has been increasingly preferred worldwide during cup revision surgery. In Sweden, the number of uncemented cup revisions has been increasing during the last decade. However, it is unclear whether the risk of rerevision differs between cemented and uncemented cups. QUESTION/PURPOSES: We determined (1) the risk of rerevision after cemented and uncemented fixation; (2) the influence of concomitant stem revision on the risk of rerevision of the cup; (3) the difference in risk of rerevision of an uncemented cup revision compared with liner revision only; and (4) whether the surgical incision influenced the risk of rerevision. METHODS: Between 1979 and 2010, 19,342 first-time cup revisions were reported to the Swedish Hip Arthroplasty Register. From these, 749 were excluded (hip resurfacing, cases with tumor diagnoses, and missing data) leaving 18,593 (73% cemented) for further analysis. We used a Cox regression model adjusted for age, sex, primary diagnosis, method of fixation, concomitant stem revision, and cemented/uncemented fixation to assess risk of rerevision. RESULTS: The relative risk for rerevision for any reason did not differ between cemented and uncemented fixation (relative risk [RR], 0.94). If the stem was not revised at index revision, the risk of further cup revision increased twofold (RR, 1.91). Liner revisions were associated with a 70% increased risk for rerevision of the cup as a result of any reason and especially because of dislocation (RR, 2.94). The surgical incision did not influence the overall risk for rerevision (direct lateral/posterolateral: RR, 1.02) or the risk of rerevision resulting from dislocation (RR, 0.91). CONCLUSIONS: We found no difference in the overall risk of rerevision between cemented and uncemented fixation. Liner exchange had a higher risk for rerevision when compared with cases being rerevised with a new uncemented cup. LEVEL OF EVIDENCE: Level II, prognostic study. See Guidelines for Authors for a complete description of levels of evidence.

Ämnesord och genrebeteckningar

MEDICIN OCH HÄLSOVETENSKAP Klinisk medicin Ortopedi hsv//swe
MEDICAL AND HEALTH SCIENCES Clinical Medicine Orthopaedics hsv//eng

Biuppslag (personer, institutioner, konferenser, titlar ...)

Garellick, Göran,1948Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för ortopedi,Institute of Clinical Sciences, Department of Orthopaedics(Swepub:gu)xgargo (författare)
Kärrholm, Johan,1951Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för ortopedi,Institute of Clinical Sciences, Department of Orthopaedics(Swepub:gu)xkarjo (författare)
Göteborgs universitetInstitutionen för kliniska vetenskaper, Avdelningen för ortopedi (creator_code:org_t)

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Ingår i:Clinical orthopaedics and related research: Ovid Technologies (Wolters Kluwer Health)471:12, s. 3922-39311528-11320009-921X

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Av författaren/redakt...: Mohaddes, Maziar ...; Garellick, Göran ...; Kärrholm, Johan, ...

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MEDICIN OCH HÄLSOVETENSKAP: MEDICIN OCH HÄLS ...; och Klinisk medicin; och Ortopedi

Artiklar i publikationen: Clinical orthopa ...

Av lärosätet: Göteborgs universitet

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