* Individuals with a severe limp, especially those suffering from peripheral arterial disease, may benefit from supplements of carnitine, according to Italian researchers (J Am Coll Cardiol, 1999; 34: 1618-24).
The findings are most relevant to individuals in Europe, where propionyl-L-carnitine is available. In the US, the Food and Drug Administration (FDA) has yet to approve the drug.
* Don't use hip replacement prostheses made from zirconia ceramic if you want your new hip to last, say French researchers (J Bone Joint Surg, 1999; 81(B): 835-42). Surgeons at the Henri Mondor Hospital in Creteil have stopped using them since finding that more than a third of these prostheses have failed within eight years. Aluminia ceramic has been found to be longer lasting.