Vaidya, Rahul Monoaxial pedicle screws are superior to polyaxial pedicle screws and the two pin external fixator for subcutaneous anterior pelvic fixation in a biomechanical analysis. [electronic resource] - Advances in orthopedics 2013 - 683120 p. digital Publication Type: Journal Article ISSN: 2090-3464 Standard No.: 10.1155/2013/683120 doi