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Inconsistent relationship between body weight/body mass index prior to total knee arthroplasty and the 12-year survival |
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| Authors: | Jean-Yves Jenny Dominique Saragaglia Michel Bercovy Alain Cazenave Thierry Gaillard Frédéric Châtain Brigitte Jolles Jean-Louis Rouvillain |
| Affiliation: | 1. University Hospital Strasbourg, Pôle Locomax, 1 Avenue Molière, Strasbourg, France;2. Department of Osteoarthritis and Sport Surgery, Traumatology of the Limbs, Grenoble-Alpes South Teaching Hospital, Echirolles, France;3. Clinique Arago, 187A Rue Raymond Losserand, Paris, France;4. Institut CALOT, Department of Orthopedic Surgery, 52 rue du Dr Calot, Berck-sur-Mer, France;5. Polyclinique du Beaujolais, 120 Ancienne Route de Beaujeu, Arnas, France;6. Pole Santé Axone, 75 Avenue Gabriel Péri, Saint-Martin-d''Hères, France;7. Swiss BioMotion Lab, Department of Musculoskeletal Medicine, Centre Hospitalier Universitaire Vaudois and University of Lausanne, Avenue Louis-Ruchonnet 57, Lausanne, Switzerland;8. Institute of Micro Engineering, Ecole Polytechnique Fédérale de Lausanne, Route Cantonale, Lausanne, Switzerland;9. Department of Orthopaedic and Trauma Surgery, Hôpital Zobda Quitman, Fort-de-France, France |
| Abstract: | BackgroundThe primary hypothesis was that body weight (BW) and body mass index (BMI) significantly impact the long-term survival rate after implantation of a mobile bearing total knee arthroplasty (TKA).MethodsA national, multicentric, retrospective study was performed in France. A total of 1604 TKAs were included. The 10-year follow-up was documented, and the influence of BW and BMI on the survival rate was assessed.ResultsThere was a significant influence of the BW on the 12-year survival rate for any reason and for infection; but this influence was not proportional to the BW or BMI. There was no significant influence of the BMI on the 12-year survival rate for any reason, for any mechanical reason or for infection.ConclusionOur results suggest that a higher BMI should not be considered as a risk factor for revision for mechanical purpose if a mobile bearing TKA with confirming design is implanted. |
| Keywords: | French Society for Hip and Knee Surgery (SFHG) Knee Total knee arthroplasty Mobile bearing Survival Body weight Body mass index |
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