Thumb Metacarpophalangeal Joint Ulnar Collateral Ligament: Early Outcomes of Suture Anchor Repair with Suture Tape Augmentation.

Introduction The purpose of this study was to evaluate the early outcomes of thumb metacarpophalangeal (MCP) joint ulnar collateral ligament (UCL) repair using suture anchors with suture tape augmentation. Materials and Methods Six patients underwent thumb UCL repair or reconstruction with suture tape augmentation and six patients underwent thumb UCL repair with intraosseous suture anchors between January 2013 and January 2018. The main outcome measures were range of motion, strength, Disabilities of the Arm, Shoulder, and Hand (DASH) score, and complications. Results At final follow-up for patients who had suture tape augmentation, the average thumb MCP joint and interphalangeal (IP) joint flexion were 65 and 73 degrees, respectively. The average DASH score was 4.3. At final follow-up for patients who had intraosseous suture anchor repair, the average thumb MCP joint and IP joint flexion were 50 and 60 degrees, respectively. The average DASH score was 38. There were no complications or secondary procedures in either group. Conclusion The use of suture anchor repair with suture tape augmentation for thumb UCL injuries is a treatment option that allows for early range of motion with satisfactory early outcomes that are comparable to intraosseous suture anchor repair. Level of Evidence  This is a level IV, case series article.