There is some concern that the compressed and fractured bone will result in more load being transferred to the adjacent bones. In patients who are osteoporotic, this could create enough force to cause further fractures.
Patients often assume an increased flexed or stooped position after vertebral compression fractures. This posture seems to help reduce their pain. However, a kyphotic (stooped) posture puts additional strain on already weakened bone.
A recent study from the University of California (San Diego) showed no difference in results after balloon kyphoplasty for patients with spinal fractures less than 60 days old compared to fractures older than 60 days.
Results of this same study showed fast pain relief for older fractures. With decreased pain, patients were able to increase activity and function quickly. Most reported an improved quality of life. Your father may want to take advantage of those benefits sooner than later.