Anatomy keinbock Osteonecrosis, all true except A Tenderness over base of 3rd metacarpall is present B Pain is more on wrist flexion than wrist extension C Is the osteochondritis of lunate D common age group 20-40 💡 Explanation keinbock Osteonecrosis, all true except ✓ Correct Answer: B. Pain is more on wrist flexion than wrist extension