I was interested to note the recommendations of the Medical Journal of Australia. There are a few noted differences to those given by the American Academy of Orthopaedic Surgeons.
Rather than a simple "yes" or "no" to all treatment options, they suggest a sequence of treatments to be used as the disease progresses.
They advocate the use of glucosamine as it is a safe supplement (except for those with shellfish allergies) and as such the benefits are likely to outweigh any risks.
As usual, a strong "thumbs up" has been given to weight loss and exercise.