Musculoskeletal disorders, of which osteoarthritis (OA) is the most co
mmon, incur significant economic, social and psychological costs. Cost
s of illness have risen over recent decades accounting for up to 1-2.5
% of the gross national product for those countries studied so far, in
cluding the USA, Canada, the UK, France and Australia. Arthritis has a
significant impact on psychosocial and physical function and is known
to be the leading cause of disability in later life. There are also s
ignificant out-of-pocket costs and loss of earnings due to changes in
occupation and roles in domestic duties. Current guidelines for the ma
nagement of OA of hip and knee include the recommendation of inexpensi
ve but effective interventions. Although the guidelines have not had a
specific economic evaluation, cost reductions may be expected. OA is
a very common disease and will become an increasing economic burden as
the population ages.