Fig. 2From: Calcium phosphate cement promotes the stability of osteoporotic lumbar pedicle screw by enhancer-injecters with different number of holesThe distribution of bone cement in module based on X-ray. (A) Anterior posterior view of the control group; (B) Anterior posterior view of the 4-hole group; (C) Anterior posterior view of the 6-hole group; (D) Anterior posterior view of the 8-hole group; (E) Anterior posterior view of the straight pore groupBack to article page