title: Beneficial effects of growth hormone therapy for ossification defects after bone distraction in X linked hypophosphataemic rickets.
abstract: A report on two homozygous twin girls affected by X linked hypophosphataemic rickets. They were examined due to short stature and genu varum of both tibias. They were treated with calcitriol and Joulie's solution, whereon it was observed that serum parathyroid hormone and phosphaturia decreased while phosphataemia increased. They underwent a tibial osteotomy (by means of the insertion of Kirchner needles) at 7.7 years of age for correction of genu varum and a normal consolidation was reached 1 month later. Nonetheless, height was percentile <1 after menarche, so both sisters asked for bone lengthening. Because of this, at 15 years of age femoral distraction was performed, but no bone callus was observed 14 months later. Consequently, they were treated with subcutaneous growth hormone, showing bone callus at 6 months. Finally, the external fixators were removed due to ossification in the lengthened segments.
authors.affiliation: Pediatric Endocrinology Unit, IMIBIC/Reina Sofía Hospital/Córdoba University, Córdoba, Spain.
authors.forename: Ramón
authors.initials: R
authors.lastname: Cañete
authors.affiliation: Clinical Analysis Service, Reina Sofía University Hospital, Córdoba, Spain.
authors.forename: Javier
authors.initials: J
authors.lastname: Caballero-Villarraso
authors.affiliation: Pediatric Endocrinology Unit, IMIBIC/Reina Sofía Hospital/Córdoba University, Córdoba, Spain.
authors.forename: María
authors.initials: M
authors.lastname: Aguilar-Quintero
authors.affiliation: Surgical Pediatrics Service, Reina Sofía University Hospital, Córdoba, Spain.
authors.forename: Fernando
authors.initials: F
authors.lastname: Vázquez-Rueda
mesh_terms: D002675:Child, Preschool; D004200:Diseases in Twins; D016267:External Fixators; D053098:Familial Hypophosphatemic Rickets / Q000150:complications* / Q000175:diagnosis; D005260:Female; D005269:Femur; D019382:Human Growth Hormone / Q000627:therapeutic use*; D006801:Humans; D009999:Ossification, Heterotopic / Q000175:diagnosis / Q000188:drug therapy / Q000209:etiology; D010027:Osteotomy; D013977:Tibia; D014430:Twins, Monozygotic
chemical_list: D019382:Human Growth Hormone