You've had a fairly straightforward day in the orthopedic clinic so far. Fractures, osteoarthritis, post-operative follow-ups – nothing too challenging.

The door opens once more. You spy a familiar face: Mrs. Morris, who you treated for a Colles fracture around a year ago. She is accompanied by a teenager, whom she introduces as her 14-year-old son, Devon.

"Doctor, Devon's been having pain in his leg today – thought of showing him to you," Mrs. Morris says.