Abstract: An operating table for operations on extended extremities of patients includes a frame 10, a support plate 18 and a counterbar 32 at one end of the support plate 18 for propping the patient. Two vertical receiving openings 64, in which the counterbar 32 can be selectively inserted, are arranged outwardly from the longitudinal middle plane of the support plate 18, whereby the operation field is increased for better transmission of X-rays and whereby the counterbar 32 may also be used as a groin support for a patient lying on his side. The vertical receiving openings 64 are formed in an adaptor 84 which also similarly has transversely directed receiving openings 92,94 for supplemental devices laterally attached to the end of the support plate 18 and longitudinally directed receiving openings 104,106 for supplemental plates which effect a lengthening of the support plate 18.