If you have a loved one that has suffered from this condition, it may be helpful to get him checked out by a reputable medical practitioner. There are a number of factors that may indicate Hoffa syndrome, including the fact that there are no obvious symptoms, no visible injury, and pain that is usually a dull ache. Other symptoms of Hoffa’s syndrome include swelling under the knee and pain when walking for a long period of time or while straightening the knee.