Introduction: Gonarthrosis of the knee is a chronic inflammatory condition presents in patients over 40; obesity as risk factor is of increasing interest for health systems and according to World Health Statistics of the World Health Organization, Venezuela is the country of South America with the highest rates of this condition. Statistics of the National Institute of Nutrition of Venezuela show that Zulia rates are over the national average with 35% of obese. In the practice of Traumatology of La Cañada Municipality we have observed a high incidence of patients with overweight and it stimulated us to do the present study. Objective: to characterize the patients with Gonarthrosis of knee those were attended in the CDC. Material and Methods: a descriptive transversal study was conducted in the CDC of La Cañada de Urdaneta Municipality, Zulia Province, Venezuela from January 2012 to December 2014 with a sample of 360 patients out of a universe of 6740. Results: the lowest age was 35 years and the highest 93, mean 55.5 years. 86.6% were female and half of the patients had family history of osteoarthritis of the knee, while 93% were overweight. Chief complain of 60% of the patients was pain for one year or less. 49 % of the cases showed severe to moderate X ray signs as well as decrease of the muscular force of lower limbs in 71% of the patients. Conclusions: the risk factor most influenced was increased BMI in patients with Gonarthrosis. Keywords: gonarthrosis of the knee, risk factors, obesity, body mass index.</p
