Great Ormond Street Hospital for Children in London is urgently reviewing all 721 patients of a former consultant orthopaedic surgeon after an external review of the hospital’s paediatric orthopaedic service by the Royal College of Surgeons raised concerns about his practice.Of the 39 cases examined so far, the hospital’s review has found that 13 patients of Yaser Jabbar suffered severe harm and another 13 have experienced low or moderate harm. Another two have been referred to peer review, with outcomes awaited.Jabbar worked at Great Ormond Street between 2017 and 2022. He undertook lower limb reconstruction, including limb lengthening operations. At least one child has had to have a leg amputated, and another is at risk of amputation. Other children have been left with legs at different lengths.A spokesman for the hospital said it asked the Royal College of Surgeons to review its paediatric orthopaedic service after staff and patients’ families…