Editor,—I was interested to read the recent articles by Allgrove1 and Williams et al 2 on the use of bisphosphonates in children and would like to report my experience of their use in a child with osteogenesis imperfecta. The patient was referred to me age 9 years with a history of recurrent fractures since infancy and a family history consistent with osteogenesis imperfecta. She had a nine month history of low back pain, evidence of a thoracolumbar kyphosis, and tenderness over the thoracolumbar spine. She had …