Background: The coronoid process has not received much attention in the treatment of traumatic injuries of the elbow until recent years. In addition, there are few studies in the literature that explore the arthroscopic treatment thereof. Purpose: To study the feasibility of arthroscopically assisted treatment of coronoid process types I and II fractures. Materials and Methods: From February 2009 to October 2015, 11 patients underwent surgery for a coronoid process fracture associated with other injuries. There were all males with a mean age of 43 (28-61) years and follow-up of 14.5 (4-28) months. In all patients, arthroscopic reduction and transosseous fixation of the fracture were carried out using a FiberWire (Arthrex, Naples, Florida) suture, and the associated bony and ligamentous injuries were also repaired. After surgery, a splint was used for 18 days, and physical therapy was started after its removal. Range of motion was measured, function was assessed with the Mayo Elbow Performance Scoring (MEPS) questionnaire, pain by Visual Analogue Scale (VAS), and disability using the Disabilities of Arm, Shoulder and Hand (DASH) questionnaire. Results: Ten fractures were type II and 1 fracture was type I. Nine patients had an associated injury of the radial collateral ligament, whereas 1 had an associated injury of the ulnar collateral ligament. Six had an associated fracture of the radial head (5 osteosynthesis and 1 fragment excision). Six patients were diagnosed as terrible triad of the elbow. Mean time to bone healing was 5 weeks. All patients had a stable elbow. The range of flexion and extension at the end of follow-up was 131.5° (120-140) to 9.5° (0-25), and pronosupination was 89° (80-90) to 86° (70-90). MEPS was 90.7 (70-100) points, VAS at rest 0 points, active VAS 0.6 (0-2), and force VAS 2.6 (0-5); finally, DASH questionnaire was 13.6 (4.5-20.5) points. No postoperative complications were reported. One patient developed mild residual pain. Conclusions: Although our series presents a limited number of cases, we believe this work shows the feasibility of an arthroscopically assisted treatment in fractures of the coronoid process using a high strength transosseous suture fixation and repairing the associated injuries when necessary.
