Faut-il encore pratiquer des blocs du plexus lombaire par voie postérieure ?

The lumbar plexus block is used for hip and knee surgery. The posterior approach is associated with a risk of vascular, epidural, and visceral puncture that make one reluctant to use it routinely. Analgesia provided by a continuous lumbar plexus block is comparable to epidural analgesia and superior to the one induced by a continuous femoral block for hip and knee surgery. Ultrasound guidance may reduce the incidence of complication related to this block and should make it more commonly considered for postoperative analgesia after lower limb surgery.