Fig. 4

Duration of prior bisphosphonate use and time-to-union of osteoporotic vertebral fracture. This graph showed the relationship between the duration of bisphosphonate use at the time of OVCF and the OVCF time-to-union. The white round mark indicates the TPD group and the black round mark indicates the BP group. The duration of bisphosphonate use did not correlate with OVCF time-to-union in either group