Medical Edge Newspaper Column

Clunking Sound After Knee Surgery May Be
Sign Of Trouble

July 3, 2006
DEAR MAYO CLINIC:
I had total knee replacement with a rotating platform three months ago, and now I hear a clunking noise when I walk. At times, the noise will disappear. Also, I experience a lot of swelling when I exercise. Is this normal or an indication of a problem? -- Canada

ANSWER:
Clunking and clicking may be noted after knee replacement, especially in the first three to six months. This is usually due to the movement of the plastic on metal pieces. However, the noise can be a sign of a problem, especially when associated with swelling or pain. In these circumstances, it is important for your surgeon to evaluate your knee.

-- Henry Clarke, M.D., Orthopedic Surgery, Mayo Clinic, Scottsdale, Ariz.