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Table 2: Patients with new radiographic fractures^{^a}
Kyphoplasty Vertebroplasty P Value
0–3 Mo 
    None 115 (76.7%) 106 (72.6%) .43
    All subsequent 35 (23.3%) 40 (27.4%)
0–12 Mo^{^b} 
    None 90 (64.3%) 74 (56.5%) .21
    All subsequent 50 (35.7%) 57 (43.5%)
0–24 Mo^{^b} 
    None 56 (50.9%) 47 (42.3%) .23
    All subsequent 54 (49.1%) 64 (57.7%)
↵a Radiographic fractures identified by a core laboratory.
↵b Co-primary end point.

	Kyphoplasty	Vertebroplasty	P Value
0–3 Mo
None	115 (76.7%)	106 (72.6%)	.43
All subsequent	35 (23.3%)	40 (27.4%)	.43
0–12 Mo^{^b}
None	90 (64.3%)	74 (56.5%)	.21
All subsequent	50 (35.7%)	57 (43.5%)	.21
0–24 Mo^{^b}
None	56 (50.9%)	47 (42.3%)	.23
All subsequent	54 (49.1%)	64 (57.7%)	.23