What are people’s experiences utilizing catheter over needle for sciatic nerve blocks or brachial plexus blocks? Ive used the catheter over needle for saphenous nerve blocks many times with success. When I tried for a cont. sciatic nerve block at the popliteal level (although i had excellent cath placement) I didn’t get any blockade after the initial block wore off. I’m thinking that these catheters are easier to dislodge from the target then the traditional flexible catheters. Anyone have experience with this?