Why did you choose to make medical materials for spine surgery and not another type of surgery?

Question: Why did you choose to make medical materials for spine surgery and not another type of surgery?
- Keywords:
  material,
  spine,
  surgery
Asked by BAssy to Kieran on 13 Nov 2018.
- Kieran answered on 13 Nov 2018:
  
  It seemed like an interesting project to do to begin my research career. The skills and techniques I learn on this project will allow me to work with materials for all kinds of surgeries in the future if I wanted to!

Question: Why did you choose to make medical materials for spine surgery and not another type of surgery?