Objective: To determine the prevalence of various radiographic findings associated with osteoarthritis of the knee, according to Kellgren-Lawrence classification in military special operations unit of the Mexican Navy. Material and Methods: Medical history and musculoskeletal current symptoms of knee were questioned, anthropometric data were collected and radiographs of both knees which were performed corresponding measurements were obtained, the data obtained from each patient were collected and statistical analysis was performed using measures central tendency and dispersion, frequencies and Percentages. They test Kolmogorov-Smirnov, Chi Square, Student T / Mann Whitney U test, ANOVA / Kruskal Wallis and binary logistic regression were applied. Results: The prevalence of knee osteoarthritis was 55% in staff UNOPES, other radiographic findings as high patella, low and patellar lateralization which are associated with osteoarthritis are identified, there is significant association (p <0.05) between osteoarthritis and number of hops . Conclusions: An increased prevalence compared to that found in literature was identified, so an endemic health problem in the military population, which should be addressed through prevention and health promotion to limit joint damage and prevent further complications would be considered.
