Fig. 4From: Hybrid surgery of percutaneous transforaminal endoscopic surgery (PTES) combined with OLIF and anterolateral screws rod fixation for treatment of multi-level lumbar degenerative diseases with intervertebral instabilitya Patient was placed into right lateral decubitus position for mini-incision OLIF and anterolateral screws rod fixation under general anesthesia. The target intervertebral space was positioned using b C-arm view. The spatula was inserted into intervertebral space to cut the contralateral fibrous annulus, which was confirmed by c X-ray image. After the OLIF cage was placed into disc space parallelly to the endplate and anterolateral screws rod fixation was performed, d lateral and e posteroanterior C-arm view confirmed good position of internal instruments. f The picture showed the mini-incision of OLIFBack to article page