Penelope wrote:
My knees are fine going up any staircase, hurt like hell coming down.
Probably you've already looked, but in case you haven't:
Pain while walking down steps is very commonly associated with kneecap problems, such as chondromalacia.
http://orthopedics.about.com/od/hipknee ... mptoms.htm
Chondromalacia
http://orthopedics.about.com/cs/patella ... alacia.htm
http://www.med.nyu.edu/patientcare/libr ... IID=100267
Patellofemoral Pain Syndrome
The patella is the bone that makes the knee cap. Patellofemoral pain syndrome is a condition in which pain is felt under the kneecap. This pain occurs during exercise or movement. It is most common during weight bearing activities such as running. It is often increased by going down stairs or down hills.
Exercise and Physical Therapy
Most people will benefit from strengthening the muscles around the knee. This includes the quadriceps muscle. It runs down the front of each thigh. Physical therapists can recommend specific exercises. This treatment is very helpful. It can take 6 to 12 weeks to see an improvement.
External Devices
Many people find relief from knee braces or knee sleeves. These devices typically have a cut-out in the knee cap area. They are designed to hold the kneecap in place during activity. Some are designed to hold the patella from going too far laterally.
Certain methods of taping the patella in position have also been helpful to many patients.
Special shoe inserts, called orthotics, may also be helpful. They are most helpful when the condition is due to dysfunction in the foot (as in flat feet or excessive pronation).
---------------------
Regular off-the-shelf shoe inserts are helpful for many conditions. I use them myself and have persuaded my sister the dancer to use them too.
Tom