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Reduced Revision Ri...
Reduced Revision Risk for Dual-Mobility Cup in Total Hip Replacement Due to Hip Fracture : A Matched-Pair Analysis of 9,040 Cases from the Nordic Arthroplasty Register Association (NARA)
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- Jobory, Ammar (författare)
- Lund University,Lunds universitet,Ortopedi, Lund,Sektion III,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Forskargrupper vid Lunds universitet,Orthopaedics (Lund),Section III,Department of Clinical Sciences, Lund,Faculty of Medicine,Orthopedics,Lund University Research Groups,Skåne University Hospital,Registercentrum Västra Götaland
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- Kärrholm, Johan (författare)
- Registercentrum Västra Götaland,Sahlgrenska University Hospital
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- Overgaard, Søren (författare)
- Danish Knee Arthroplasty Register,Odense University Hospital,University of Southern Denmark
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- Becic Pedersen, Alma (författare)
- Danish Knee Arthroplasty Register,Aarhus University Hospital
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- Hallan, Geir (författare)
- Haukeland University Hospital,University of Bergen
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- Gjertsen, Jan Erik (författare)
- Haukeland University Hospital,University of Bergen
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- Mäkelä, Keijo (författare)
- Turku University Hospital
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- Rogmark, Cecilia (författare)
- Lund University,Lunds universitet,Ortopedi, Lund,Sektion III,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Forskargrupper vid Lunds universitet,Orthopaedics (Lund),Section III,Department of Clinical Sciences, Lund,Faculty of Medicine,Orthopedics,Lund University Research Groups,Registercentrum Västra Götaland
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(creator_code:org_t)
- 2019
- 2019
- Engelska 8 s.
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Ingår i: The Journal of bone and joint surgery. American volume. - 1535-1386. ; 101:14, s. 1278-1285
- Relaterad länk:
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http://dx.doi.org/10...
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https://lup.lub.lu.s...
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https://doi.org/10.2...
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Abstract
Ämnesord
Stäng
- BACKGROUND: The dual-mobility acetabular cup (DMC) has an additional bearing consisting of a mobile polyethylene component between the prosthetic head and the outer metal shell. This design has gained popularity in revision total hip arthroplasty (THA) and in primary treatment of femoral neck fractures with the anticipation of a reduced risk of THA instability. Our primary aim was to evaluate the overall revision risk of these cups on the basis of data from the Nordic Arthroplasty Register Association (NARA) database, and our secondary aim was to study specific revision causes including dislocation. METHODS: Propensity score matching for age, sex, fixation of the cup and stem, and the year of surgery (2001 to 2014) was used to match 4,520 hip fractures treated with a DMC to 4,520 hip fractures treated with conventional THA (control group). Competing risk regression analyses with revision or death as the end point were used. Revision was defined as a secondary surgical procedure in which any component of the implant was removed or exchanged. In addition, revision of the cup was analyzed. RESULTS: The DMCs had a lower risk of revision compared with conventional THA, with an adjusted hazard ratio (AHR) of 0.75 (95% confidence interval [CI] = 0.62 to 0.92). This was consistent after adjusting for surgical approach. DMCs had a lower risk of revision due to dislocation (AHR = 0.45 [95% CI = 0.30 to 0.68]) but we found no difference regarding revision for deep infection. Revision of the acetabular component, both in general and due to dislocation, was more frequent with the use of conventional cups. The risk of death was higher in the DMC group (AHR = 1.49 [95% CI = 1.40 to 1.59]). CONCLUSIONS: The use of a DMC as primary treatment for hip fracture was associated with a lower risk of revision in general and due to dislocation in particular. The total number of DMCs analyzed (4,520) likely exceeds any cohort of DMC-treated fractures published to date. LEVEL OF EVIDENCE: Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Ortopedi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Orthopaedics (hsv//eng)
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- art (ämneskategori)
- ref (ämneskategori)
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