Flexible nails vs external fixation for paediatric femoral shaft fractures in children over 11

TENS nailing works brilliantly for school-age children, but once you hit the early teen years with heavier body weight and longer lever arms, the redisplacement and malunion rates start creeping up. Some centres advocate for submuscular plating or even temporary external fixation in this grey zone. For a 13-year-old at 65 kg with a mid-diaphyseal transverse fracture, what's your go-to and what sways the decision?