Ultrasound-Guided Nerve Blocks as Analgesia for Nonoperative Management of Distal Radius Fractures-Two Consecutive Randomized Controlled Trials.

Objectives: To investigate whether a conventional fracture hematoma block (FHB) or an ultrasound-guided peripheral nerve block has more superior analgesic effect during nonoperative management of distal radius fractures in an emergency department setting. Two peripheral nerve block types were investigated, one at the level of the elbow, or cubital nerve block (CNB), and another an axillary nerve block (ANB).

Design: Two prospective randomized controlled studies were performed to compare the difference in pain intensity during closed reduction of a distal radius fracture between FHB-, CNB-, and, ANB-treated patients.