Fig. 1From: Introducing the “Bone-Screw-Fastener” for improved screw fixation in orthopedic surgery: a revolutionary paradigm shift?The historically prevalent screw thread shapes include the V-shaped thread (a), the square thread (b), and the buttress thread (c). The buttress thread represents the current paradigm of screw design in orthopedics due to improved unidirectional pull-out resistance in boneBack to article page