RESUMO
Background and objective: Wear and tear of joint cartilage is regarded as one of the main causes of osteoarthritis hence recurrent minor traumas due to some of lifelong daily activities can correlate with the development of osteoarthritis especially in weight bearing large joints. This study was designed to evaluate the association between 10 specified lifelong daily activities with knee and hip osteoarthritis
Methods: A cross-sectional study was carried out in the outpatient clinic of Rizgary Teaching Hospital over a period of six months starting from November 2009. The study sample constituted 101 subjects with knee and/or hip osteoarthritis and 100 subjects of normal joints. Subjects fulfilling the inclusion criteria underwent clinical evaluation and radiology of their knee and hip joints. Differences between comparable subdivisions of the studied subjects in relation to the duration of each of the 10 specified lifelong daily activities was tested by the Chi-square test concerning the association of each daily activity with knee and hip osteoarthritis
Results: Five of the 10 specified lifelong daily activities showed association with knee osteoarthritis, and these were; squatting, sitting on the floor, knee bending and crossed leg sitting postures, cycling, and less time sitting on chair or sofa. The same applied for osteoarthritis of hip except for cycling
Conclusion: Lifestyle has an important role in the pathogenesis of knee and hip osteoarthritis