Polyaxial Elliac screws.

Polyaxial Head: The screw has a spherical head enclosed in a housing, allowing it to pivot along multiple axes relative to the housing.

Flexibility in Placement: This polyaxial nature provides intra-operative flexibility, enabling the surgeon to angle the screw to best fit the complex anatomy of the iliac crest.

Enhanced Stability: Polyaxial screws, when used with connecting rods and cross members, provide 3-dimensional stability and contribute to the rigidity and pull-out resistance of the construct.

Spinopelvic Fixation: They are a key component in lumbosacral fusion and spinopelvic fixation, anchoring the spine to the pelvis after complex procedures like sacral tumor resection or fractures.

Material: Often made from titanium or titanium alloys, which are suitable for bone tissue interaction and offer good mechanical properties for implants.