Chronic Pain After Total Knee Arthroplasty
Conditions
Interventions
Sponsors
Chengdu Sport University
Eligibility
Sex/Gender
All
Age
18 Years to No maximum
Inclusion criteria
Inclusion criteria: 1. Adults who have undergone primary TKA for KOA with a postoperative period of >=12 months. 2. Presence of persistent pain in the target knee for a duration of >6 months. 3. Pain localized to the surgical site or its corresponding nerve distribution, with other potential causes excluded (e.g., prosthesis loosening, infection). 4. An average pain intensity score of >=4 points on the Numerical Rating Scale (NRS) over the week preceding enrollment (0 indicates no pain, 10 indicates the most severe pain, and >=4 indicates moderate to severe pain). 5. Stable vital signs, clear consciousness, and sufficient cognitive and linguistic ability to assess their own pain and cooperate in completing pain assessment scales.
Exclusion criteria
Exclusion criteria: 1. Specific reasons for chronic pain, such as loosening and failure of the prosthesis, which requires revision surgery. 2. Secondary osteoarthritis associated with rheumatoid arthritis or sequelae of previous trauma. 3. Recent surgical history involving the index knee within 3 months or significant injury within the preceding 12 months. 4. Confounding pain patterns, defined as acute pain in areas other than the index knee during baseline testing. 5. Vascular contraindications, including a history of deep vein thrombosis, peripheral vascular disease, or active bleeding diathesis incompatible with compression training. 6. Concurrent medication or trial participation, specifically the use of opioid analgesics within 2 weeks or enrollment in other pain-related studies. 7. General ineligibility due to pregnancy, lactation, severe cognitive impairment, or inability to provide informed consent.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| KOOS4 score; | — |
Secondary
| Measure | Time frame |
|---|---|
| KOOS score;Global Perceived Effect Scale;Numerical Rating Scale ;Pain Extent and Distribution;Hospital Anxiety and Depression Scale;The Pain Catastrophizing Scale;40-meter Fast-Paced Walk Test;Stair Climb Test;30-second Chair-Stand Test;Muscle strength; | — |
Countries
China
Contacts
Public ContactJipeng Xu
Chengdu Sport University
Outcome results
None listed