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- Title
Analgesic efficacy of intracapsular and intra-articular local anaesthesia for knee arthroplasty.
- Authors
Andersen, L. Ø.; Husted, H.; Kristensen, B. B.; Otte, K. S.; Gaarn-Larsen, L.; Kehlet, H.
- Abstract
The optimal site for wound delivery of local anaesthetic after total knee arthroplasty is undetermined. Sixty patients having total knee arthroplasty received intra-operative infiltration analgesia with ropivacaine 0.2% and were then were randomly assigned to receive either intracapsular or intra-articular catheters with 20 ml ropivacaine 0.5% given at 6 h and again at 24 h, postoperatively. Analgesic efficacy was assessed for 3 h after each injection, using a visual analogue score, where 0 = no pain and 100 = worst pain. There was no statistically significant difference between groups. Maximum pain relief (median (IQR [range])) at rest observed in the 3 h after the 6 and 24 h postoperative injections was 17 (7–31 [0–80]) and 10 (4–27 [0–50]) p = 0.27 for 6–9 h; and 17 (7–33 [0–100]) and 13 (3–25 [0–72]) p = 0.28 for 24–27 h, for intracapsular and intra-articular, respectively. Intracapsular local anaesthetic has similar analgesic efficacy to intra-articular after total knee arthroplasty.
- Subjects
ANESTHESIA; ARTHROPLASTY; ANALGESIA; CATHETERS; KNEE diseases
- Publication
Anaesthesia, 2010, Vol 65, Issue 9, p904
- ISSN
0003-2409
- Publication type
Article
- DOI
10.1111/j.1365-2044.2010.06389.x