“…10,17,34,42,43 Microendoscopic discectomy (MED) uses a tubular transmuscular working channel (16-20 mm) to approach the spine coupled with an endoscope to enable visualization. 8,9,31,33,35,44,51,52,54,55 The same muscle-splitting device can also be used with the microscope to perform a minimally invasive microdiscectomy. [2][3][4][11][12][13][20][21][22]26,49 Also, full endoscopic techniques have been used for the treatment of LDH via an interlaminar or transforaminal (endoscopic transforaminal discectomy [ETD]) approach.…”