Double-Screw Osteosynthesis in an Unstable Scaphoid Fracture Model: A Biomechanical Comparison of Two Screw Configurations

• Published in: The Journal of hand surgery (American ed.) Vol. 47; no. 11; pp. 1118.e1 - 1118.e8
• Main Authors: Surke, Carsten, Huntington, Lachlan S., Zhang, Xin, Ek, Eugene T.H., Ackland, David, Tham, Stephen K.
• Format: Journal Article
• Language: English
• Published: Elsevier Inc 01.11.2022
• Subjects: Biomechanics; computer-aided design; double screw; fracture; scaphoid; Biomechanics; scaphoid; computer-aided design; double screw; fracture

Although there is evidence that a single headless compression screw is sufficient for fixation of most scaphoid fractures, double-screw osteosynthesis has been shown to result in higher failure strength and stiffness than a single screw. However, the biomechanical effect of different screw configura...