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In vitro angular displacement (IVAD) and non-destructive four-point bending mechanical assessments of the combined L4–6 motion segment at 12 weeks post-implantation of the indicated treatments. IVAD is shown in in the coronal (A) and sagittal (B) planes, and four-point bending stiffness is shown in the left (C) and right (D) bending directions. Chondroitinase ABC is abbreviated as chABC. Indicated significance was p ≤ 0.001 (***), p < 0.01 (**), and p ≤ 0.05 (*).
