Effects of bisphosphonates in children with osteogenesis imperfecta: an AACPDM systematic review.

Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.
Developmental Medicine & Child Neurology (Impact Factor: 2.68). 02/2009; 51(1):17-29. DOI: 10.1111/j.1469-8749.2008.03222.x
Source: PubMed

ABSTRACT This systematic review of the effects of bisphosphonate treatment in children with osteogenesis imperfecta was conducted using the American Academy for Cerebral Palsy and Developmental Medicine methodology for developing systematic reviews of treatment interventions (Revision 1.1) 2004. Despite a large body of published literature, there have been only eight studies with a sufficiently high level of internal validity to be truly informative. These studies confirm improvement in bone density. Many, but not all studies, demonstrate reduction in fracture rate and enhanced growth. There has been extremely limited evaluation of broader treatment impacts such as deformity, need for orthopedic surgery, pain, functioning, or quality of life. Short-term side effects were minimal. Which medication and dosing regimen is optimal and how long patients should be treated are unclear. This body of evidence would be strengthened by a larger controlled trial, because many studies lacked adequate power to evaluate stated outcomes. These studies do not address the impacts of bisphosphonates in children with milder forms of osteogenesis imperfecta and severe forms that are not due to mutations in the type I pro-collagen gene (e.g. types VII and VIII). Additional research is needed into treatment of infants. More studies evaluating medication choices, optimal dosing, duration of treatment, post-treatment impacts, and long-term side effects are necessary.

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