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The Journal of Bone & Joint Surgery British Volume
Vol. 79-B, Issue 1 | Pages 99 - 101
1 Jan 1997
Finsen V Kasseth A

We studied perioperative pain and postoperative neurological changes after surgery for hallux valgus in 50 patients operated on under local ankle block. Patients were randomised to have the pneumatic tourniquet either at calf level or just above the ankle. The cuffs were inflated to 100 mmHg above systolic blood pressure. One patient was withdrawn from the study after randomisation. Areas of pain, paraesthesia and numbness were marked by patients on a diagram of the foot before operation and at six and ten weeks after operation. Both positions of the tourniquet gave an excellent bloodless field. The proximal tourniquet gave significantly greater discomfort (p < 0.01) during the operation, after 10, 20 and 30 minutes. Application of the cuff at the ankle gave no relative increase in areas of numbness and paraesthesia at six and ten weeks. An ankle tourniquet gives less discomfort with no increase in the incidence of nerve injury