Fig. 8From: Anatomical characteristics affecting the surgical approach of oblique lateral lumbar interbody fusion: an MR-based observational studyPrediction of insertion angle using multiple linear regression model. Insertion angle = 22.62–1.808*segmentation − 0.078*age + 0.875*width of surgical window + 0.775*psoas thickness − 0.378*distance DBack to article page