Clinical examination using the patellofemoral grind test can help predict which patients with knee pain are most likely to progress to osteoarthritis requiring arthroplasty. A large study of more than 4,000 participants from the National Institutes of Health Osteoarthritis Initiative found about 16% had a positive patellofemoral grind test – assessed as pain on distal force at … Continue reading Simple clinical test provides a quick clue to knee OA progression