A Novel Ultrasound-Guided Injection Strategy for Rapid Functional Recovery in Frozen Shoulder: A Multicenter Randomized Trial

The authors aimed to evaluate the efficacy and safety of a novel ultrasound-guided tendon surface (UGTS) injection compared to manipulation under local anesthesia (MULA) and blind tender point (BTP) injection, all in conjunction with intra-articular injection and home exercise for treating frozen shoulder. The study found that UGTS led to significantly faster functional recovery and higher rates of complete remission within the first month, without adverse effects on articular cartilage or rotator cuff injuries. This suggests that UGTS may serve as an effective noninvasive first-line treatment for rapid relief in frozen shoulder.