This application relates to operating tables and accessories designed to facilitate surgical procedures on a limb especially but not exclusively orthopaedic procedures involving the distraction dislocation or replacement of a joint. A such accessory includes a table mounted component (200) including a patient support (103) and a floor standing component (200) including an articulated limb support beam (205). Cooperating locating features including a notch 118 and guide channels (217) on the two components locate the components relative to each other. They are designed so that with the patient support (103) supporting at least some of the weight of the patient the articulated limb support beam (205) is properly positioned to support and manipulate the limb. Moreover they are so configured as to allow the table to be tilted relative to the floor standing component (200) while continuing to locate the components relative to each other.
