Kiprusoff's hip problem sounds like it might be due to something other than an injury during the course of a game. ...Osteoarthritis of the Hip, Piriformis Syndrome, hip bursitis....something along those lines..(nothing that will really affect his performance provided he follows his doctor's guidelines)
Is there any possibility that Kiprusoff is bowing out graciously now so that he can take medication for his condition that might breach the Olympic guidelines?
Corticosteroids, aspirin, ibuprofen, and countless other related remedies are usually prescribed to deal with inflamations and infections of body joints, along with a combination of exercise and rest.
I'm sure these medications can easily relieve the pain and remove any inflammations or infections, but Kiprusoff and his medical advisors could have concerns that the condition might linger, and require medication through the time period of the Olympics.