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OEM Lumbar foraminoscope with working cannula made by asap endoscopic disc systems GmbH. This ergonomic 45-degree design has a fixed and rotatable luer lock for irrigation and suction channel. The 30-degree viewing angle is preferred by the senior author because if facilitates visualization in the hidden zone of Macnab between the exiting and traversing nerve root, and during bony foraminal decompression.
