Spine Surgery Implants
Spinal fixation hardware stabilizes the vertebral column using screws anchored into bone, connected by rods, to correct deformity, stabilize trauma, or support fusion. Screw and construct choice depends heavily on spinal level and the degree of correction or rigidity needed.
What's in This Collection
Polyaxial screws (Polyaxial Pedicle, Polyaxial Reduction, Fenestrated Polyaxial, Cannulated Polyaxial, Dual Threaded Polyaxial, HA Coated Polyaxial) have a screw head that pivots relative to the shaft, making rod seating easier across multiple levels with varying anatomy. Monoaxial screws (Monoaxial Pedicle, Monoaxial Reduction, Fenestrated Monoaxial, HA Coated Monoaxial) are fixed-angle, offering more direct, rigid force transmission — often chosen at key correction or anchor levels within a longer construct. Fenestrated screw variants allow cement augmentation through the screw for additional purchase in osteoporotic or revision bone, and HA-coated variants promote bone ongrowth for improved long-term fixation. Cannulated screws allow guide-wire-assisted, percutaneous placement.
For specific anatomical needs, the Iliac Screw (6.5mm/7.5mm) extends a fixation construct down into the pelvis for long fusions crossing the lumbosacral junction. The Odontoid Screw (partially threaded) and Transarticular Screw (fully threaded) address C1–C2 atlantoaxial instability, and the Occipital Plate Screw supports craniocervical junction fixation. The Mini Cervical Plate Screw supports anterior cervical plating.
Rods and connectors — the Tapered Rod (Ø5.5mm/Ø3.5mm), Titanium Connecting Rod, and Transverse Connector (Ø3.0mm) — form the longitudinal and cross-linking elements that tie screw constructs together into a rigid frame.
Choosing the Right Hardware
Screw type follows construct goals: polyaxial for easier multi-level rod alignment, monoaxial where rigid, direct correction is the priority. Fenestrated and HA-coated variants suit osteoporotic or revision bone where standard screw purchase is a concern. Anatomical-specific screws — iliac, odontoid, transarticular, occipital — are chosen by fusion level rather than general preference.
Related Products
Pair these implants with DHS/DCS & Pediatric and Craniomaxillofacial Implants for adjacent fixation needs, Bone Drills and Screw Holding Forceps, Taps & Countersinks for placement, and Kirschner Wires for guide-wire-assisted cannulated screw insertion. Browse the full Orthopedic Implants catalog, or the Spine Surgery Set for bundled procedure kits.
Ordering
Peak Surgicals manufactures spine fixation implants and instrumentation for hospitals and distributors worldwide, with international shipping — contact our team for current stock on complete instrument sets and wholesale pricing.
Frequently Asked Questions
What's the difference between a polyaxial and monoaxial pedicle screw?
A polyaxial screw's head pivots relative to the shaft, making rod alignment easier across multiple levels. A monoaxial screw is fixed-angle, giving more direct, rigid force transmission, often used at key correction or anchor points.
What is a fenestrated pedicle screw used for?
A fenestrated screw has openings that allow bone cement to be injected through the screw itself, improving fixation strength in osteoporotic or revision bone.
What is an iliac screw used for?
An iliac screw extends a spinal fixation construct down into the pelvis, used in long fusions that cross the lumbosacral junction for additional distal anchoring.
What's the difference between an odontoid and a transarticular screw?
Both address C1–C2 (atlantoaxial) instability; an odontoid screw is partially threaded and placed through the dens itself, while a transarticular screw is fully threaded and crosses the C1–C2 joint directly.
Why is HA coating used on some pedicle screws?
Hydroxyapatite (HA) coating promotes bone ongrowth onto the screw surface, improving long-term fixation strength, particularly valuable in osteoporotic bone.
