Clinical Studies

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The TenJet Patient Registry

The multicenter TenJet Patient Registry is currently enrolling patients in the United States. It is designed to study the effectiveness of using TenJet to treat chronic tendinopathy in patients that have failed conservative care. Patients suffering from epicondylitis, gluteal tendinopathy, or calcific tendinitis in the shoulder are eligible for participation. The study is being conducted at the Rothman Institute in Pennsylvania,  University of North Carolina at Chapel Hill, Oschner Health at Baton Rouge, and Stanford University.

Further information can be found at

Past Clinical Studies

TenJet Percutaneous Ultrasound Guided Elbow Tenotomy (PUGET) was a prospective, multicenter, single-arm, observational study to evaluate clinical outcomes for patients presenting with chronic lateral or medial epicondylitis and choosing a percutaneous tenotomy treatment using the HydroCision TenJet device.

The results have been published in the peer-reviewed, open source Journal of Orthopedic Experience and Innovation. In the 29 patients (32 elbows) enrolled in the study, pain and function scores  improved significantly at 2 weeks and continued to improve through 12 months (both, p < 0.05; Table 3).

The publication can be read here: Strauser-Curtis, Kaylin, Christopher P. Varacallo, Tyler T. Voss, Chad B. Stephens, and Reginald W. Kapteyn. 2022. “Ultrasound-Guided Tenotomy Via a Hydrosurgery Resection Device Improves Symptoms of Chronic Elbow Tendinopathy: A Multi-Center Prospective Study.” Journal of Orthopaedic Experience & Innovation, June.