THE following account of a surgical disaster which occured in my hospital practice some years ago is given because the experience is believed to be unique and no satisfactory explanation of the condition has yet been made.
CASE REPORT€IIsToRY.-The patient was a young woman, aged 20 years, well developed and in good general condition, but fat and florid. In cold weather her face and extremities became bluish. She had been in hospital for two and a half years suffering from tuberculosis of the spine, left knee, sternum, and lungs, THE OPERATION.-A bone-grafting operation to arthrodese the tuberculous area of the spine was done when non-operative treatment had arrested the disease in the other sites, but not in the spinal site.A curved incision along the front of the right leg was made, the flap raised, and two massive grafts 6 in. long were cut from the medial surface of the tibia with an electrically driven saw. While these grafts were being cut, the knee was held fully flexed, but no tourniquet was used. The assistant may have exerted some pressure in holding the limb flexed. Owing to difficulties with the saw, the operation on the leg took forty-five minutes, including the opening and closing of the wound; the time of the whole operation on the leg and spine was ninety minutes. Gas-oxygen-ether anaesthesia without intratracheal tube was used, the patient lying in the prone position ; during the first hour she was somewhat cyanosed. The dressing of the wound of the leg consisted of gamgee tissue, the leg being bandaged firmly, but not tightly, to a wooden back splint with foot-piece.SUBSEQUENT PROGRESS.-After the operation, the patient said that the leg felt heavy, but there was no complaint of pain, and the toes were warm and normal in colour. There was a severe degree of shock. The next day, complete loss of sensibility and power of movement below the knee were noted, and the skin-flap of the leg wound was slightly discoloured. Subsequently the edges only of the flap sloughed ; but no other area of skin in the leg or foot became necrotic. When the stitches were removed after a week, the muscles of the anterior compartment of the leg weie seen to be necrotic, and sloughed completely in the following two months. During this time there was intermittent pyrexia, but there were no local signs of inflammation and no constitutional disturbances. The wound in the back healed normally. On separation of slough, a fracture of the tibia in the lower third of the shaft was noticed, but whether this occurred spontaneously or accidentally during nursing of the limb is not known.Three months after operation, the skin behind the heel, over the head of the fibula, and in the middle of the back of the leg opened, and through these openings a large amount of necrotic muscle and blood-stained serum were discharged, The openings then healed rapidly and remained healed. The skin over the plantar aspect of the head of the fifth metatarsal also gave way, with slight discharge of necrotic tissue, and subsequently did nor permanently hea...