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Optical tissue stylet - observational study into vascular access in humans

The primary objective of the trial is to investigate if the optical tissue stylet technology can reliably discriminate intra-vascular (venous) from non-vascular punctures. Diffuse reflectance spectra will be acquired for these two situations, with…

Ultrasound guided versus nerve stimulation guided distal sciatic nerve block

We hypothesize that ultrasound visualization of the distal sciatic nerve with subsequent ultrasound guided injection of a reduced amount of local anesthetic will result in shorter performance times, equivalent block quality (sensory and motor onset…

Lumbar Interbody Fusion Trial (LIFT): A randomized controlled multicenter trial for surgical treatment of lumbar spondylolisthesis.

Currently the available data on cost and clinical effectiveness of TLIF compared to PLIF for patients with lumbar spondylolisthesis is not sufficient. With a steep increase in instrumented spinal fusion, and an expected further increase in the…