This prospective study was conducted to evaluate the short- and medium-term impact of the outpatient education sessions that have been available at the Cochin Teaching Hospital since 1992. Each patient was asked to complete a ten-item anonymous questionnaire at the beginning of the education session (evaluation 0), immediately after the session (evaluation 1), after six months (evaluation 2) and after 12 months (evaluation 3). Mean numbers of correct answers per patient were calculated. Eight education sessions were evaluated (osteoarthritis, osteoporosis, rheumatoid arthritis, back pain, conservative treatments, surgical treatments, low-calorie diets and high-calcium diets). One hundred twenty-four patients completed the first two questionnaires, 94 (75.80%) completed the six-month questionnaire and 75 (60.5%) completed the 12-month questionnaire. Mean numbers of correct answers were as follows: 5.7 before the session, 7.3 after the session (p = 0.0001), 7.2 after six months (p = 0.0001), and 7.9 after 12 months (p = 0.0001). These results demonstrate that the education sessions significantly improved patient knowledge in the short and medium term. Their impact on quality of life is being evaluated.