I had chest surgery as a 9 year old. I was born with a concave sternum and as I got older it grew inward. That took 6 hours to complete.
I broke my collar bone in 3 places and destroyed all the soft tissues back in 2010. I have a cadaver Achilles tendon holding it all together. That tendon was $8000.00. Still bothers me to this day...pain and numbness.