Fig. 1From: Lack of concentration-dependent local toxicity of highly concentrated (5%) versus conventional 0.5% bupivacaine following musculoskeletal surgery in a rat modelSchematic representation of experimental setup. Screws with a catheter attached were implanted in either the spine or femur. Catheters were then tunneled subcutaneously (dotted line) and exited between the shoulders. A pump was connected to the catheter to allow controlled infusion of bupivacaine solutions. Representative MicroCT images for the two surgical locations are shownBack to article page