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No Increase in Surv...
No Increase in Survival for 36-mm versus 32-mm Femoral Heads in Metal-on-polyethylene THA: A Registry Study.
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- Tsikandylakis, Georgios (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för ortopedi,Institute of Clinical Sciences, Department of Orthopaedics,Univ Gothenburg, Dept Orthopaed, Inst Clin Sci, Sahlgrenska Acad, Gothenburg, Sweden; Sahlgrens Univ Hosp, Registerctr Västra Götaland, Gothenburg, Sweden; Swedish Hip Arthroplasty Register, Gothenburg, Sweden; Univ Gothenburg, Dept Orthopaed, Inst Clin Sci, Sahlgrenska Acad,Sahlgrenska Univ Hospital, Mölndal, Gothenburg, Sweden; Swedish Hip Arthroplasty Register, Registerctr Västra Götaland, Mölndal, Sweden
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- Kärrholm, Johan, 1951 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för ortopedi,Institute of Clinical Sciences, Department of Orthopaedics,Univ Gothenburg, Dept Orthopaed, Inst Clin Sci, Sahlgrenska Acad, Gothenburg, Sweden; Sahlgrens Univ Hosp, Registerctr Västra Götaland, Gothenburg, Sweden; Swedish Hip Arthroplasty Register, Gothenburg, Sweden
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- Hailer, Nils P. (författare)
- Uppsala universitet,Ortopedi,Swedish Hip Arthroplasty Register, Gothenburg, Sweden
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- Eskelinen, Antti (författare)
- Coxa Hosp Joint Replacement, Tampere, Finland; Finnish Arthroplasty Register, Helsinki, Finland
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- Mäkelä, Keijo T (författare)
- Finnish Arthroplasty Register, Helsinki, Finland; Turku Univ Hosp, Dept Orthoped & Traumatol, Turku, Finland
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- Hallan, Geir (författare)
- Haukeland Hosp, Norwegian Arthroplasty Register, Dept Orthoped Surg, Bergen, Norway; Univ Bergen, Dept Clin Med, Fac Med, Bergen, Norway
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- Furnes, Ove Nord (författare)
- Haukeland Hosp, Norwegian Arthroplasty Register, Dept Orthoped Surg, Bergen, Norway; Univ Bergen, Dept Clin Med, Fac Med, Bergen, Norway
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- Pedersen, Alma B (författare)
- Aarhus Univ Hosp, Dept Clin Epidemiol, Aarhus, Denmark; Danish Hip Arthroplasty Register, Aarhus, Denmark
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- Overgaard, Søren (författare)
- Danish Hip Arthroplasty Register, Aarhus, Denmark; Odense Univ Hosp, Dept Orthopaed Surg & Traumatol, Odense, Denmark; Univ Southern Denmark, Inst Clin Res, Odense, Denmark
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- Mohaddes, Maziar, 1974 (författare)
- Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för ortopedi,Institute of Clinical Sciences, Department of Orthopaedics,Univ Gothenburg, Dept Orthopaed, Inst Clin Sci, Sahlgrenska Acad, Gothenburg, Sweden; Sahlgrens Univ Hosp, Registerctr Västra Götaland, Gothenburg, Sweden; Swedish Hip Arthroplasty Register, Gothenburg, Sweden
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(creator_code:org_t)
- LIPPINCOTT WILLIAMS & WILKINS, 2018
- 2018
- Engelska.
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Ingår i: Clinical orthopaedics and related research. - : LIPPINCOTT WILLIAMS & WILKINS. - 1528-1132 .- 0009-921X. ; 476:12, s. 2367-2378
- Relaterad länk:
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- During the past decade, the 32-mm head has replaced the 28-mm head as the most common head size used in primary THA in many national registries, and the use of 36-mm heads has also increased. However, it is unclear whether 32-mm and 36-mm heads decrease the revision risk in metal-on-polyethylene (MoP) THA compared with 28-mm heads.(1) In the setting of the Nordic Arthroplasty Register Association database, does the revision risk for any reason differ among 28-, 32-, and 36-mm head sizes in patients undergoing surgery with MoP THA? (2) Does the revision risk resulting from dislocation decrease with increasing head diameter (28-36 mm) in patients undergoing surgery with MoP THA in the same registry?Data were derived from the Nordic Arthroplasty Register Association database, a collaboration among the national arthroplasty registries of Denmark, Finland, Norway, and Sweden. Patients with primary osteoarthritis who had undergone primary THA with a 28-, 32-, or 36-mm MoP bearing from 2003 to 2014 were included. Patients operated on with dual-mobility cups were excluded. In patients with bilateral THA, only the first operated hip was included. After applying the inclusion criteria, the number of patients and THAs with a complete data set was determined to be 186,231, which accounted for 51% of all hips (366,309) with primary osteoarthritis operated on with THA of any head size and bearing type during the study observation time. Of the included patients, 60% (111,046 of 186,231) were women, the mean age at surgery was 70 (± 10) years, and the median followup was 4.5 years (range, 0-14 years). A total of 101,094 patients had received a 28-mm, 57,853 a 32-mm, and 27,284 a 36-mm head with 32 mm used as the reference group. The revision of any component for any reason was the primary outcome and revision for dislocation was the secondary outcome. Very few patients are estimated to be lost to followup because emigration in the population of interest (older than 65-70 years) is rare. A Kaplan-Meier analysis was used to estimate THA survival for each group, whereas Cox regression models were fitted to calculate hazard ratios (HRs) with 95% confidence intervals (CIs) for THA revision comparing the 28- and 36-mm head diameters with the 32-mm head diameters adjusting for age, sex, year of surgery, type of cup and stem fixation, polyethylene type (crosslinked versus conventional), and surgical approach.In the adjusted Cox regression model, there was no difference in the adjusted risk for revision for any reason between patients with 28-mm (HR, 1.06; 95% CI, 0.97-0.16) and 32-mm heads, whereas the risk of revision was higher for patients with 36-mm heads (HR, 1.14; 95% CI, 1.04-1.26) compared with patients with 32-mm heads. Patients with 28-mm heads had a higher risk of revision for dislocation (HR, 1.67; 95% CI, 1.38-1.98) compared with 32 mm, whereas there was no difference between patients with 36-mm (HR, 0.85; 95% CI, 0.70-1.02) and 32-mm heads.After adjusting for relevant confounding variables, we found no benefits for 32-mm heads against 28 mm in terms of overall revision risk. However, when dislocation risk is considered, 32-mm heads would be a better option, because they had a lower risk of revision resulting from dislocation. There were no benefits with the use of 36-mm heads over 32 mm, because the transition from 32 to 36 mm was associated with a higher risk of revision for all reasons, which was not accompanied by a decrease in the risk of revision resulting from dislocation. The use of 32-mm heads appears to offer the best compromise between joint stability and other reasons for revision in MoP THA. Further studies with longer followup, especially of 36-mm heads, as well as better balance of confounders across head sizes and better control of patient-related risk factors for THA revision are needed.Level III, therapeutic study.
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Ortopedi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Orthopaedics (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine (hsv//eng)
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Tsikandylakis, G ...
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Kärrholm, Johan, ...
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Hailer, Nils P.
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Eskelinen, Antti
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Mäkelä, Keijo T
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Hallan, Geir
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Furnes, Ove Nord
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Pedersen, Alma B
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Overgaard, Søren
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Mohaddes, Maziar ...
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- MEDICIN OCH HÄLSOVETENSKAP
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MEDICIN OCH HÄLS ...
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och Klinisk medicin
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och Ortopedi
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- MEDICIN OCH HÄLSOVETENSKAP
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MEDICIN OCH HÄLS ...
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och Klinisk medicin
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Clinical orthopa ...
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Göteborgs universitet
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