Influence of body mass index in revision total knee arthroplasty

Acta Ortopédica Brasileira

Rogério Teixeira De Carvalho¹  Diego Benone Santos Neto¹  Victor Chammas¹  Lucas Simões Arrebola¹  Mauricio Lebre Colombo¹  Caetano Scalizi Junior¹ 

关键词: Osteoarthritis;    knee;    Arthroplasty;    replacement;    knee;    Review;    Body mass index;   

DOI  :  10.1590/1413-785220152306140199

来源: SciELO

【 摘 要 】

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.

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