Influence of body mass index in revision total knee arthroplasty

• Autor(a) principal: Carvalho,Rogério Teixeira de
• Data de Publicação: 2015
• Outros Autores: Santos Neto,Diego Benone, Chammas,Victor, Arrebola,Lucas Simões, Colombo,Mauricio Lebre, Scalizi Junior,Caetano
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Acta Ortopédica Brasileira (Online)
• Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-78522015000600290
• topic: Osteoarthritis, knee; Arthroplasty, replacement, knee; Review; Body mass index

ABSTRACTOBJECTIVE: To evaluate the influence of the body mass index (BMI) on the functional assessment of patients who underwent revision total knee arthroplasty (RTKA).METHODS: Thirty patients who un-derwent RTKA between January 2008 and January 2012 were retrospectively assessed using the WOMAC questionnaire. The patients were divided into three groups according to the BMI ca-tegories defined by the World Health Organization (WHO): Group I with normal BMI (18-24.9 Kg/m2), with eight patients; Group II, overweight (BMI 25-29.9 Kg/m2), with 15 patients, and Group III obesity with BMI ≥ 30 Kg/m2, with seven patients. The post-ope-rative function scores obtained through the WOMAC questionnaire were compared with the BMI of each group. The statistical analysis between BMI and WOMAC scores was performed with the Spe-arman correlation test.RESULTS: The average functional WOMAC score for individuals in Group I was 16.7; in Group II it was 47.7; and in Group III it was 69.9, with a statistically significant differen-ce between groups I, II and III (p< 0.0001).CONCLUSION: Patients with BMI > 25 Kg/m2 had a worse functional evaluation through WOMAC scores when compared to patients with normal BMI after RTKA. Level of Evidence III, Tranversal Retrospective Study.