title: Recent advances toward the clinical application of PTH (1-34) in fracture healing.
abstract: PTH 1-34, an active form of parathyroid hormone, has been shown to enhance osteoblastic bone formation when administered as a daily subcutaneous injection. The effect of the intermittent administration of PTH (1-34) is an uncoupling of bone turnover with an increase in bone mass and density and decrease in risk of vertebral and nonvertebral fractures. While PTH (1-34) has been used clinically to increase bone mass and reduce fracture risk in postmenopausal women with osteoporosis, there is increasing evidence that PTH (1-34) may promote fracture healing. Animal studies have demonstrated accelerated callus formation with enhanced remodeling and biomechanical properties of the healing fracture. Given these effects, PTH (1-34) will likely be used clinically to enhance fracture union in poor healing situations such as osteoporosis and recalcitrant nonunions.
authors.affiliation: University of Pennsylvania School of Medicine, Philadelphia, PA, USA.
authors.forename: Cara A
authors.initials: CA
authors.lastname: Cipriano
authors.forename: Paul S
authors.initials: PS
authors.lastname: Issack
authors.forename: Lisa
authors.initials: L
authors.lastname: Shindle
authors.forename: Clément M L
authors.initials: CM
authors.lastname: Werner
authors.forename: David L
authors.initials: DL
authors.lastname: Helfet
authors.forename: Joseph M
authors.initials: JM
authors.lastname: Lane