Objective: To analyze the causes of pain after total knee arthroplasty (TKA), and to review its diagnosis and treatment methods.
Methods: Domestic and abroad literature concerning pain after TKA was extensively reviewed and thoroughly analyzed.
Results: Pain after TKA was divided into intra-articular and extra-articular factors, systematic assessment, appropriate imaging, and laboratory tests were useful to confirm the diagnosis; targeted surgery could effectively relieve the pain.
Conclusion: The causes of pain after TKA are complex and diverse, the first step is to exclude intraarticular infection, for patients having a clear cause the appropriate surgery is effective. Otherwise revision should be carried out cautiously under condition of unexplained pain and conservative treatment can relieve pain to some degree.