After 13 years since his initial knee replacement, Mr. Hoang, 77, suffering from end-stage osteoarthritis, underwent robotic surgery on his remaining leg to restore mobility.
Osteoporosis, joint wear, infection, trauma, or technical errors during knee replacement surgery can lead to the loosening of an artificial knee joint.
Ms. Hong, 50 years old, has suffered from knee osteoarthritis on a background of rheumatoid polyarthritis for 13 years, with the condition worsening and severely affecting her mobility.