Comparison of the analgesic effects of different bupivacaine concentrations in continuous femoral block after total knee arthroplasty surgery

• DOI: 10.20528/cjpm.2024.01.003
• Publication Date: 2024-03-02T14:49:41Z
• Authors: Murat Ünal; Serpil Şavlı Mete; Menşure Kaya; Abdurrahman Dünmez; Gülçin Özalp Şenel; Nihal Kadıoğulları
• Keywords: Femoral nerve block

Aim: In regional anesthesia practice, anesthesists’ goal must be to use the lowest effective concentration of local anesthetics provide sufficient pain relief while minimizing side effects and complications. This study was designed compare analgesic efficacy two different concentrations bupivacaine (0.125% 0.1%) in continuous femoral block for postoperative analgesia.Method: this study, fifty patients were enrolled, all whom underwent nerve catheterization. The procedure involved administration 30ml solution at a 0.25%. Following thirty-minute interval post-block application, knee surgery under general anesthesia. During closure subcutaneous tissues, an additional 10ml injected through catheter. Two groups formed based on administered: Group(0.125%) received 0.125%, Group(0.1%) it 0.1%. Subsequently, upon arrival care unit, infusion catheter commenced rate 10ml/h-1, maintaining same both groups. addition block, provided with intravenous Patient Controlled Analgesia (PCA) devices containing morphine management. Throughout period, sensory motor levels, Numerical Rating Scale (NRS) values static dynamic assessment, total consumption, demand, as well any observed complications, meticulously recorded analysis.Results: Postoperatively NRSstatic 24th 48th hours NRSdynamic hour higher statistically significant(p<0,007). And hour, consumption significantly (p<0,05).Conclusions: our across experimental initially experienced satisfactory analgesia. However, within 24-hour exhibited decline quality analgesia, necessitating increased utilization rescue analgesics. escalation associated incidence adverse reduced patient comfort levels group. Consequently, findings indicate that 0.125% yielded superior compared 0.1% context administration.