Table 1.

The basic information of patient

	PMMA bone cement	MC-PMMA bone cement
Age (years)	84.54 (3.53)	83.29 (2.89)
BMD hip (T-score)	−3.08 (0.87)	−3.20 (0.98)
BMD spine (T-score)	−3.51 (0.92)	−2.59 (1.11)
Total patients/male/female	32/5/27	31/6/25
Operative time (minutes)	19.42 (2.46)	18.92 (1.78)
Volume of bone cement (ml)	4.23 (0.72)	4.79 (0.92)
Cement leakage	8	5
Operation time (minutes)	32.32 (3.21)	31.47 (2.57)
Average length of stay (days)	5.20 (1.30)	5.40 (1.40)
Follow-up duration (months)	13.72 (1.52)	14.68 (1.41)
New vertebral fracture	7	1