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Acetabular Dysplasia and Surgical Approaches Other Than Direct Anterior Increases Risk for Malpositioning of the Acetabular Component in Total Hip Arthroplasty

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

DOI

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BACKGROUND: Persistent acetabular dysplasia (AD) after periacetabular osteotomy has been hypothesized to increase the risk for malpositioning of the acetabular component. In this study, we investigate whether AD is an independent risk factor for cup malpositioning during primary total hip arthroplasty (THA).

METHODS: Patient demographics, surgical approach, presence of AD assessed using the lateral center-edge angle, and acetabular cup positioning determined using Martell Hip Analysis Suite were investigated in 836 primary THA patients enrolled in a prospective multicenter study.

RESULTS: We found that presence of AD, defined as the lateral center-edge angle of <25°, is an independent risk factor for malpositioning of the acetabular component during primary THA. Surgical approach other than direct anterior was also independently associated with malpositioned cups.

CONCLUSIONS: Surgeons should therefore take special care during placement of the acetabular component in patients with AD.

OriginalsprogEngelsk
TidsskriftThe Journal of arthroplasty
Vol/bind31
Udgave nummer4
Sider (fra-til)835-841
ISSN0883-5403
DOI
StatusUdgivet - apr. 2016

ID: 45948751