Repair of spondylolysis using a pedicle screw U-shaped rod construct: A preliminary study of 25 young patients with a mean follow-up of 24 months. - Barakat, Ahmed; Soliman, Wessam; Elgharabawy, Amr; Fawaz, Khaled; Diab, Nader; Alinani, Wissam; Azzam, Akram; Sultan, Ahmed (Journal of Craniovertebral Junction & Spine, 2021)