Abstract: To assess the functional outcome of Knee flexion deformity which was a real complication of 154 joints measured by Plastic goniometer and collected from 81 patients with knee Osteoarthritis as independent cases in this Case-series study. Statistical analyses revealed that the percentage of Flexion deformities higher and increase with age of the patient and there is high significance correlation of flexion deformity and its degree with LYSHOLM Knee Questionnaire Scale altering the normal pattern and the biomechanics of normal knee function and walking.Abstract: To assess the functional outcome of Knee flexion deformity which was a real complication of 154 joints measured by Plastic goniometer and collected from 81 patients with knee Osteoarthritis as independent cases in this Case-series study. Statistical analyses revealed that the percentage of Flexion deformities higher and increase with age of the pat...Show More