A greater trochanter re-attachment device for use in transfemoral revision surgery which comprises attachment means (30,40) adapted for securing to a femoral prosthesis (3) with which it is to be used, said attachment means carrying adjustable securing means (23) adapted to extend from the attachment means and pass around the flap of bone containing the greater trochanter (7) and which when secured in position holds the greater trochanter in position in relation to the femoral prosthesis.
