Fig. 8From: Reducing the extent of facetectomy may decrease morbidity in failed back surgery syndromeThe nephogram of shear stress on the annulus in L5 disc. a. In flexion. b. In axial rotation. Model1 The complete model. Model2 The model after one-quarter excision of the superior articular process. Model3 The model after one-half excision of the superior articular processBack to article page