View clinical trials related to Lower Limb Surgery.
Filter by:A retrospective post-market data collection study of the following implant devices : - DARCO™ Headed Cannulated Screw - ORTHOLOC™ 3Di Recon-Midfoot/Flatfoot System - ORTHOLOCTM 3Di 2 Foot Reconstruction System: CROSSCHECK™ Module
This study aims to determine the minimum effective dose of bupivacaine 0.5% in 90% of patients undergoing lower limb surgery with ultrasound-guided spinal anesthesia using Taylor's approach. A biased coin design up-and-down sequential method is applied. The initial dose is 15 mg of bupivacaine 0.5%. After 45 successful spinal anesthesia, the ED90 of bupivacaine 0.5% will be calculated.
Spinal anesthesia is often used for lower limb surgery in elderly. Hypotension is a side effect of spinal block. In this study, intravenous ephedrine and phenylephrine will be compared with each other to prevent spinal anesthesia-induced hypotension, which is defined in absolute terms as a systolic blood pressure < 100 mmHg or in relative terms as a 20% fall of systolic blood pressure from baseline.
Spinal anesthesia is a commonly used technique for lower limb surgeries offering better quality of postoperative analgesia, lower incidence of side effects, and shorter post-anesthesia care unit stay than general anesthesia. However, the relatively short duration of action of the currently available local anesthetics (LAs) make these advantages short-lived. The risk for local anesthetic toxicity (LAST) increases with the trials to use higher concentrations or volumes of intrathecal local anesthetics to increase the duration of analgesia. Dexmedetomidine has the potential to prolong the duration of perioperative analgesia without the need for using high doses of local anesthetics and hence with decreasing the potential risk of local anesthetic, but the increased likelihood adverse effects such as short term bradycardia and prolonged duration of motor block may offset these benefits.
The purpose of this study is to compare the effects of two intrathecally administered drugs:0.5% levobupivacaine and0.75%Ropivacaine in spinal anesthesia
In the present study, the investigators will test the effect of two position on posterior lumbar plexus and subgluteal or sub-greater trochanter sciatic nerve block.