INTRODUCTION: This case report aims to discuss the clinical and radiological outcomes of prolotherapy at a patient whom to total knee prosthesis had been planned but surgery couldn\'t be performed due to co-morbidities.
CASE PRESENTATION: A 72 year old woman presented with severe pain at her knees for over 5 years. Treatment methods include weight loss, decreasing the weight bearing on the joint, stretching exercises, nonsteroid anti-inflammatory and steroid drugs, and physiotherapy. The Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) scale was applied to measure the osteoarthritis level of the patient: Pain level; 25 points, stiffness level; 10 points, Physical function loss; 80 points, and total WOMAC 115 points. At radiological evaluation, the patient was diagnosed as grade IV osteoarthritis due to significant osteophyte presence and complete joint space narrowing. Six sessions of knee prolotherapy protocol was applied to the patient, one session monthly.