Original sentence: An osteoporotic fracture can cause extreme back pain along with other symptoms, such as decreased height and spinal deformity or a hunchback appearance.The failure of placebo controlled trials to demonstrate any efficacy for vertebroplasty casts doubt on the benefit of kyphoplasty for which placebo controlled studies have not been performed.The procedure is typically used for a spine fracture caused by osteoporosis, a disease that causes weakening of the bones and can lead to fractures in the vertebral bodies (those bones that make up the spinal column).Vertebroplasty has become a common treatment for painful osteoporotic vertebral fractures, but there is limited evidence to support its use
Edited sentence: Bone cement has long been approved for many medical uses, but this particular use was not tested against a placebo procedure until 2009.During the procedure, hot bone cement is injected into the collapsed or cracked vertebra.The cement is thought to shore up or stabilize the compressed bone.The failure of placebo-controlled trials to demonstrate any efficacy for vertebroplasty casts doubt on the benefit of kyphoplasty for which placebo-controlled studies have not been performed.The first rigorous studies of vertebroplasty do not support its use.There can be complications, including infection and leakage of the cement into the spinal column.Vertebroplasty has become a common treatment for painful osteoporotic vertebral fractures, especially older women with osteoporosis, some of whom are stooped and unable to stand up straight