paeds510

An 18-month-old boy of Asian descent and a product of non-consanguineous marriage presents to the clinic with a history of swelling of both wrists. He has been complaining of painful legs and his parents are concerned about his bandy legs. The child was breastfed until 6 months of age, with solids being introduced in the diet later. At 12 months of age the child suffered from a non-stick fracture of the radius after falling at the nursery. Which condition is the child most likely suffering from?