Knee Osteoarthritis in Rheumatological Consultation at the National Hospital of Niamey: Epidemiological, Clinical, Radiological and Therapeutic Aspect

Moussa F., Daouda O., Ibrahim S.A, Sayo D., Ide G, Adehossi E.O

Abstract: Introduction: Knee osteoarthritis is a chronic degenerative rheumatic disease that constitutes a real public health problem. It is caused by several risk factors, the main ones being obesity, genetic predisposition, and aging. The objective is to determine the epidemiological, clinical, radiological, and therapeutic aspects of knee osteoarthritis and contribute to improving its management in Niger. Method: This was a prospective, descriptive, cross-sectional study conducted over a three-month period from March 2020 to June 2020 in the rheumatology department of the National Hospital of Niamey. Results: A total of 978 patients were seen in rheumatology consultations during the study period, 106 patients suffered from knee osteoarthritis, representing a hospital frequency of 10.84%. Females predominated at 85.85% with a sex ratio of 6.06. The average age of patients was 56.29 years, ranging from 33 to 91 years. Housewives were the most represented socio-professional group at 56.60%. Clinically, pain was the main reason for consultation, with the visual analog scale ranging from 7 to 10 being the most common at 42.45%. Axial deviation was valgus in 21.70% of cases and varus in 19.81%. The average body mass index was 31.8 kg/m2. The average Lequesne index was 10.01, with extremes ranging from 2 to 17. Radiologically, joint space narrowing was present in 100% of cases, osteophytes in 78.30%, and subchondral bone condensation in 100%. According to the Kellgren-Lawrence classification, stage 2 was the most common, occurring in 28.30% of cases. Treatment consisted mainly of medication combined with rehabilitation and lifestyle changes. 83. 02% received slow-acting anti-arthrosics, 37.74% received intra-articular corticosteroid injections, 25.47% received joint lavage, and 39.62% received functional knee rehabilitation. Conclusion: This study shows that knee osteoarthritis is also common in sub-Saharan Africa. The main contributing factors identified were female gender and obesity.

Keywords: Gonarthritis epidemiological, clinical and treatment Niamey HNN

How to Cite?: Moussa F., Daouda O., Ibrahim S.A, Sayo D., Ide G, Adehossi E.O, "Knee Osteoarthritis in Rheumatological Consultation at the National Hospital of Niamey: Epidemiological, Clinical, Radiological and Therapeutic Aspect", Volume 14 Issue 10, October 2025, International Journal of Science and Research (IJSR), Pages: 1256-1259, https://www.ijsr.net/getabstract.php?paperid=SR251015235613, DOI: https://dx.doi.org/10.21275/SR251015235613