Comparing Single-shot Adductor Canal Block and Continuous Femoral Nerve Block for Pain Relief and Recovery After Total Knee Replacement

What this Trial Is About

Researchers are comparing two types of nerve blocks used for pain relief after total knee replacement surgery, a common treatment for late-stage knee osteoarthritis. The study focuses on the effectiveness and impact of single-shot adductor canal block versus continuous femoral nerve block, particularly looking at rehabilitation outcomes. The femoral nerve block is widely used but can cause muscle weakness and increase fall risk, while the adductor canal block may provide good pain relief without affecting muscle function. Participants will receive either a single-shot injection of ropivacaine in the adductor canal or a continuous infusion of local anesthetic near the femoral nerve through a catheter. The single-shot adductor canal block uses a 20 ml dose of 0.5% ropivacaine, while the continuous femoral nerve block involves an infusion of 0.2% ropivacaine at a rate between 4 mlh and 10 mlh. This randomized, triple-blind study evaluates these two methods in the context of postoperative analgesia following planned primary total knee replacement with neuraxial anesthesia. During the study, participants ability to walk and perform mobility tests will be assessed on the first and second days after surgery, including measurements like ambulation distance and timed walk tests. Researchers will also monitor readiness for discharge and length of hospital stay up to 30 days postoperatively. The study aims to understand how each nerve block affects recovery and physical function during the early rehabilitation period after knee replacement surgery.

The Impact of Single-shot Adductor Canal Block Versus Continuous Femoral Nerve Block on Rehabilitation After Total Knee Replacement