This application relates to operating tables and accessories designed to facilitate surgical procedures on a limb, especially, but not exclusively, orthopaedic procedures involving distraction, dislocation or replacement of a joint. A such accessory includes a component (100) to be mounted on an operating table and including a patient support (103) a floor-standing component (200) including: an articulated limb support (205) a receptacle (211) adapted to hold the limb andcooperating retention features on the limb support (205) and the limb receptacle a proximal limb pad (272, 414) on one of the two components (100, 200) cooperating locating features on the two components (100, 200), adapted to locate the components (100, 200) relative to each other such that with the patient support (103) supporting at least some of the weight of the patient and the limb receptacle (211) holding the limb, the articulated limb support (205) is properly positioned to support and manipulate the limb and the proximal limb pad (272, 414) lies below a proximal portion of the limb andmeans for reversibly raising the limb pad relative to the limb receptacle (211) to apply a lifting force to the proximal portion of the limb.