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Illustration of the seven enrolled pedicle screw‐based instrumentations on plain radiographs of the spine in anteroposterior (AP) (left) and lateral images (middle), and the whole construct of the screw with head, neck, and body (right). (A) A‐spine (EVO), (B) Armstrong, (C) CDH, (D) Expedium, (E) Gezen, (F) NOVA, (G) Xia 3.
