After a joint replacement, such as a knee, shoulder, or hip replacement procedure, some patients experience persistent pain in the joint area. This can happen for several reasons.

LOOSE IMPLANT
One potential issue causing joint pain after a replacement procedure is looseness. This is rarely the cause of pain directly after the procedure, however; it is more often a cause of pain many years later.

ALIGNMENT ISSUES
Of vital importance is how well the implant was placed. Poor alignment will mean the implant will not function well.

INFECTION AND FRACTURES
Postoperative infection does occur, and be a cause for serious concern. If there is swelling, redness, and a fever, see a doctor. If you experience sudden pain, you might have a fracture in the joint area.