Fig. 4From: Lumbar spine fusion outcomes using a cellular bone allograft with lineage-committed bone-forming cells in 96 patientsRepresentative coronal CT scans of a male patient in his 60s at two years postoperative showing A bridging callous across the L5-S1 interbody fusion and B posterolateral fusion mass (Lenke B, probably solid with a unilateral stout fusion mass and a contralateral thin fusion mass)Back to article page