Original Research ArticlesUltrasound-Guided Microinvasive Trigger Finger Release Technique Combined With Three Tests to Confirm a Complete ReleaseColberg, Ricardo E. MD; Pantuosco, John DO; Fleisig, Glenn PhD; Drogosz, Monika MPHAuthor Information From the Andrews Sports Medicine and Orthopedic Center, Birmingham, Alabama (REC); Department of Physical Medicine and Rehabilitation, University of Alabama School of Medicine, Birmingham, Alabama (JP); and American Sports Medicine Institute, Birmingham, Alabama (GF, MD). All correspondence should be addressed to: Ricardo E. Colberg, MD, Andrews Sports Medicine and Orthopedic Center, 805 St Vincent’s Drive, Suite 100, Birmingham, AL 35205. John Pantuosco is in training. Financial disclosure statements have been obtained, and no conflicts of interest have been reported by the authors or by any individuals in control of the content of this article. Supplemental digital content is available for this article. Direct URL citations appear in the printed text and are provided in the HTML and PDF versions of this article on the journal’s Web site (www.ajpmr.com). American Journal of Physical Medicine & Rehabilitation: December 2020 - Volume 99 - Issue 12 - p 1150-1156 doi: 10.1097/PHM.0000000000001510 Buy SDC Metrics Abstract Objective Trigger finger at the A1 pulley is a common cause of hand pain leading to functional limitations. This study evaluated the outcomes of patients treated with a microinvasive ultrasound-guided trigger finger release technique using an 18 blade and described three tests that confirm a complete release. Design A retrospective chart review and cross-sectional study of 46 cases of A1 pulley trigger finger releases in 28 patients performed at a private, sports medicine clinic using this technique were completed, meeting power criteria. The primary outcome measure was the resolution of mechanical catching/locking; secondary outcome measures were reduction in visual analog scale for pain and improvement of function in the modified Nirschl scale. Results Complete release was achieved in all patients, with no recurrence of catching/locking during the first year (P < 0.0001). Ninety-eight percent of patients had significant pain and functional improvement (P < 0.0001). There were no complications perioperatively and postoperatively. The three confirmatory tests ensured that all cases obtained a successful outcome. Conclusion This technique combined with confirmatory tests resulted in full resolution of the locking for all patients and statistically significant reduction in pain and improvement in function. Copyright © 2020 Wolters Kluwer Health, Inc. All rights reserved.