الفهرس 
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Abstract
This study aimed to investigate the effectiveness of intra articular injection of hyaluronic acid under ultrasound guidance as a symptomatic treatment of hip osteoarthritis. This prospective randomized clinical study was carried out on 21 patients with osteoarthritis hip. According to HHS, cases were divided to excellent group (n = 17) and good group (n = 4). There were no poor or fair cases found. All patients in the study were subjected to full history taking, full clinical examination, radiological investigations: x-ray pelvis antro-posterior view showing both hips. Summary of our Results: • The results were significantly affected by age, weight, BMI, smoking and pre procedural times of NSAID consumption /day and not affected by sex, height, comorbidities (DM, hypertension, autoimmune disease), laterality, Kellgnen-lawrence criteria (I, II, III). • NSAID consumption was significantly lower in Excellent group than good group (P= 0.047). • There was a significant difference among the three measurements (P<0.001). The number of patients who required NSAID were significantly lower at 3 months and 6 months compared to baseline and were comparable between 3 months and 6 months. • NSAID intake was significantly lower at 3 months and 6 months compared to baseline and were comparable between 3 months and 6 months. • VAS was significantly lower at 3 months and 6 months compared to baseline and was significantly lower at 6 months compared to 3 months. • Harris Hip Score was significantly lower at 3 months and 6 months compared to baseline and was significantly lower at 6 months compared to 3 months. • Number of patients who had pain, pain during the day, spontaneous pain, pain during walking, pain at night, pain weight bearing, and 15-meter walking time were significantly lower at 3 months and 6 months compared to baseline and was significantly lower at 6 months compared to 3 months. • Complications of studied cases were (19.05%) patients had pain, (14.3%) patients had low grade fever and (4.8%) patients had synovitis. No major complications were found in the studied patients.