Fig. 2From: Efficacy of platelet-rich plasma impregnation for unidirectional porous β-tricalcium phosphate in lateral lumbar interbody fusion: study protocol for a prospective controlled trialBone grafts in the intervertebral cage. For each cage, one space will be filled with a bone graft with PRP, and the other will be filled with a bone graft without PRPBack to article page