Onset of Knee Pain in OA Begins on Stairs
Saturday, March 14, 2015 03:46 PM

In patients with knee osteoarthritis (OA), pain likely first appears during weight-bearing activities that involve bending of the knee, such as climbing stairs, a new study suggests.  The large observational analysis of people with confirmed radiographic knee OA, or those considered at high risk for this condition, found that of five activities that may result in mechanical loading on the knee joint, using stairs was most likely to be the first to cause pain.

These findings support the monitoring of patients for development of pain during activities to identify those with the first stages of OA who may benefit from early intervention.  The authors, indicated that using stairs tended to be affirmed as symptom causing before the other activities. They noted that using stairs and walking are both weight bearing activities and involve knee bending while the other activities do not.

"Pain experienced while lying or sitting or while in bed, is perhaps less likely to have a mechanical origin," wrote the authors. "It is tempting to speculate as to whether pain during these activities might be the result of underling structural damage within the bone itself."

Source:  http://www.medpagetoday.com/Rheumatology/Arthritis/49495