A computerized, interactive system for measuring flexion and extension angle in hip joints was presented in this study. The application enables considerable objectivity of Lasegue’s and GenslenMenel’s tests. The measurement kit consists of tilting slideway supplied with an electric hoist, which enables controlled elevation of the limb examined, and a protractor connected to a computer. Pain during flexion or extension is signalized to the system by breaking electrical pulse. Angular range of joint mobility is inversely proportional to progression of the disease. The results obtained in electrical measurement from two groups of patients were more objective and recurrent than in cases of manual measurement conducted by family doctors or specialists. Comparative research, which was conducted, outlined the range of accuracy of the appliance and proved clinical usability of the appliance.

        Key words: Genslen-Menel test, Lasegue test, objective measurement, interactive met- hods