In 2003, an orthopedic surgeon found that I had moderate levels of heterotopic ossification in my left hip, and severe heterotopic ossification in my right hip, such that my right hip was essentially fused. These were complications from being in a drug-induced coma a year earlier to protect against vasospasms. He suggested surgical intervention to remove the excessive bone growth in my right hip. On the day before surgery, the radiography technician irradiated the right hip with x-rays to prevent re-growth of the heterotopic bone. I was only in the hospital for two nights, and began passive physical therapy on my hip on the evening following the surgery. The passive PT involved was a cycling machine that could be used in bed, even while I was asleep.