Knee replacements: less pain but more complications

A rigorous randomised controlled trial of knee replacement for osteoarthritis has shown that it is superior to active non-surgical treatment in all aspects bar adverse events.

Eighty-five percent of patients undergoing total knee replacement had a clinically meaningful (at least 15%) improvement in their pain scores at 12 months compared with 68% of those doing a non-surgical intervention.

The Danish trial allocated