Compartment syndrome after prolonged surgery with leg supports.

Compartment syndrome has been reported in a few cases after prolonged surgery with patients in leg supports. A recent case in our hospital (57-year-old man undergoing cystourethrectomy because of cancer) made us interested in the problem. This case together with six from the literature are analysed. Moreover, the first 11 cases operated on with a pelvic pouch and ileoanal anastomosis at our department were reviewed. They had been in the leg support position for a median duration of 6.4 (5.8-8) h. In four of them leg pain and swelling developed within 12 h. Three showed regression within a few days, one after a week. In one patient with swelling compartment pressure was measured with a transducer tipped catheter. Intermittently the pressure was up to 50 mm Hg. There was an obvious decrease in pressure on knee bending. Also, in a patient without swelling large pressure variations were seen but not to critical levels.