Effect of a lithium-doped calcium phosphate cement in promoting tibial bone defect repair in rats].

Li Li, Yong-Bao Qin, Gang Ma, Bing Li

Nan fang yi ke da xue xue bao = Journal of Southern Medical University 2016 Jun

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To evaluate the effects a lithium chloride-doped calcium phosphate cement (Li/CPC) on promoting tibial defect repair in rats. Twenty 6-month-old female SD rats randomized into Li/CPC (n=10) and CPC control (n=10) groups. Surgery was performed to create bone defects at the bilateral tibia, which were filled with either of the cement. Five rats from each group were sacrificed at 1 and 2 months after the surgery for micro-CT examination and HE staining of the tibia. Micro-CT showed better repair of bone defects in Li/CPC group, which had a significantly higher new bone volume fraction (BV/TV) and a lower trabecular separation/spacing (Tb.Sp) than the control group (P<0.05). HE staining showed an earlier appearance of fiber and osteoid callus in Li/CPC group than CPC control group. The number and quality of bone healing was significantly higher in Li/CPC group than in CPC group. Li/CPC possessed better osteoinductivity and can significantly promote bone defect repair in rats.

Citation

Li Li, Yong-Bao Qin, Gang Ma, Bing Li. Effect of a lithium-doped calcium phosphate cement in promoting tibial bone defect repair in rats]. Nan fang yi ke da xue xue bao = Journal of Southern Medical University. 2016 Jun;36(6):824-8