Fig. 4From: Comparison of a novel hand-held retractor-assisted transforaminal lumbar interbody fusion by the wiltse approach and posterior TLIF: a one-year prospective controlled studyHand-held retractors system assisted Wiltse approach TLIF, a: exposure; b: screw-setting; c: decompression; d: fusion; e: rod-setting; f: sutureBack to article page