Clinical Research Directory

Ultrasonographic Predictors of Adductor Canal Block Effectiveness in Total Knee Arthroplasty

Total knee arthroplasty (TKA) is associated with substantial postoperative pain and opioid requirements, making effective multimodal analgesia essential for early mobilization, functional recovery, and reduction of opioid-related adverse events \[1,2\]. Adductor canal block (ACB) has become a key component of enhanced recovery after surgery (ERAS) protocols because it provides effective anterior knee analgesia while largely preserving quadriceps muscle strength \[2-4\]. However, analgesic efficacy after ACB remains variable, and some patients require rescue opioid analgesia despite technically successful block placement \[5\]. Although ultrasound guidance improves block accuracy, factors such as tissue depth, anatomical variations, saphenous nerve visibility, and injectate spread pattern may influence clinical outcomes \[6,7\]. Prospective evidence regarding the predictive value of these ultrasound-derived parameters for ACB analgesic failure remains limited. Therefore, this study aims to evaluate whether preoperative ultrasound-derived tissue and target parameters-including skin-to-target depth, subcutaneous fat thickness, muscle thickness, saphenous nerve visibility, and injectate spread pattern-can predict ACB analgesic failure and early postoperative analgesic outcomes following TKA.

Comparison Of Preoperative Ultrasound Guided Fascia Iliaca Block Versus Femoral Nerve Block for Proximal Femur Fractures Before Positioning for Spinal Anaesthesia

Proximal femur fractures are among the most painful orthopedic injuries Adequate analgesia is essential to facilitate positioning for spinal anesthesia, reduce opioid requirements, and minimize related complications. The aim of study to compare the analgesic efficacy of preoperative ultrasound-guided Fascia Iliac Block Versus and Femoral Nerve Block in patients with proximal femur fractures prior to positioning for spinal anesthesia.