A 26-year-old, ASA1 patient underwent maxillofacial surgery under general anaesthesia, of 12-hour duration in the supine position. Postoperatively he developed rhabdomyolysis and acute renal failure. In the subsequent days, a bilateral leg compartment syndrome occurred with anterior tibial motor nerve injury requiring fasciotomies and excision of necrotic muscles. Several aetiological factors may have contributed to this accident: a long-lasting procedure, controlled hypotension and inappropriate position of the lower limbs. A laboratory study showed that the hardness of some new operating tables could be responsible for this complication. Some prophylactic measures are therefore required before the use of such devices.