The Queen could be replaced as patron of Britain's 33,000 physiotherapists after a royal gaffe.

The 108-year-old Chartered Society of Physiotherapy has decided to review its Buckingham Palace link.

Members voted at their annual conference to discuss whether the society needed a patron, and, if so, whether it should be the monarch.

The decision comes after some physiotherapists were upset at comments by the Queen over her granddaughter, Zara Phillips, and the injured England football captain David Beckham.

The Queen appeared to suggest at a Windsor Castle reception last month that Ms Phillips was a physiotherapist, and, having already treated boyfriend Richard Johnson, might be able to assist Beckham's recovery.

The comments upset some physiotherapists, who complete three year degree courses, because Ms Phillips had enrolled for a 20 week course in sports massage, due to finish in July.

A motion passed at the body's conference asked "whether the Queen should be patron of the CPS or if a different person would be more appropriate for the profession and its members".

A spokesman said the motion was not intended to be anti-monarchist and was tabled before the Windsor Castle party.

A Buckingham Palace spokeswoman said: "It is entirely a matter for them."