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Rev Esp Anestesiol Reanim · Nov 2008
Clinical Trial[Postoperative analgesia in knee arthroplasty using an anterior sciatic nerve block and a femoral nerve block].
- J del Fresno Cañiaveras, A Campos, M Galiana, J A Navarro-Martínez, and R Company.
- Servicio de Anestesiología y Reanimación, Hospital General Universitario de Alicante. jdelfresno@coma.es
- Rev Esp Anestesiol Reanim. 2008 Nov 1;55(9):548-51.
ObjectiveTo evaluate the efficacy of a nerve block as an alternative technique for analgesia after knee arthroplasty and to indicate the usefulness and advantages of the anterior approach to the sciatic nerve block.Material And MethodsBetween April 2004 and March 2006, we studied a series of consecutive patients undergoing knee arthroplasty in which a subarachnoid block was used as the anesthetic technique and postoperative analgesia was provided by means of a combined peripheral femoral nerve block and an anterior sciatic nerve block. We evaluated the mean length of time free from pain, quality of analgesia, and length of stay in hospital.ResultsSeventy-eight patients were included in the study. The mean (SD) length of time free from pain for the group was 42.1 (3.9) hours. Patients reported mild pain after 34.8 (4.1) hours and moderate to severe pain after 42.4 (3.5) hours. By the third day, 62.8% of patients were able to bend the knee to 90 degrees. There were no complications resulting from the technique and the level of patient satisfaction was high.ConclusionsA combined femoral-sciatic nerve block is effective in knee arthroplasty. It controls postoperative pain and allows for early rehabilitation. The anterior approach to the sciatic nerve is relatively simple to perform without removing the pressure bandaging from the thigh after surgery. This approach also makes it unnecessary to move the patient.
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