Knee Osteoarthritis
Conditions
Brief summary
postoperative pain and analgesic consumption between the first and the second surgery would be compared in patients undergoing staged bilateral total knee arthroplasty (BTKA).
Detailed description
postoperative pain and analgesic consumption is compared between the first and second total knee arthroplasty (TKA) operation.
Interventions
None listed
Sponsors
Study design
Eligibility
Inclusion criteria
* patients undergoing elective bilateral staged total knee arthroplasty at a 1-week interval under spinal anesthesia, * age \<=85 * American Society of Anesthesiologists physical status of I to II
Exclusion criteria
any contraindication to spinal anesthesia or femoral nerve block such as coagulopathy; conversion to general anesthesia; preexisting pain syndrome; abnormal liver function or renal test results; severe heart, liver, or renal disease; history of stroke or neurologic deficits; psychiatric disorder; chronic opioid use; drug dependency; allergy to study medications; inflammatory joint disease; previous surgery on or trauma of the knee; difference in preoperative VAS score of ≥ 20 (at rest and at maximum knee flexion) between each side of the knee; body mass index of ≥ 40 kg/m2; and inability to comprehend the VAS or to use patient-controlled analgesia (PCA.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| VAS | from the end of the TKA surgery until postoperative 48 hour | visual analogue scale |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| analgesic consumption | from the end of the TKA surgery until postoperative 48 hour | patient controlled analgesia (fentanyl) |
| rescue analgesic | from the end of the TKA surgery until postoperative 48 hour | ketoprofen |
| antiemetics | from the end of the TKA surgery until postoperative 48 hour | antiemetics total amount |
Countries
South Korea