Spinal Pedicle Screw Set 6.0mm – Open Posterior Pedicle Screw-Rod Instrumentation

The Spinal Pedicle Screw Set 6.0mm from Peak Surgicals (SKU: PS-OS-00300-70, 2200-01 series) is a 31-piece posterior pedicle screw instrumentation set for open posterior spinal surgery using a 6.0mm rod system, covering the complete workflow of pedicle access and channel assessment, tapping across four diameters (φ4.0 to φ7.0mm), polyaxial and monoaxial screw insertion, rod contouring and seating, in-situ rod bending, crosslink fixation, segmental compression and spreading, and screw cutter management. The set includes Straight and Bent Feelers for Screw Channel, Straight and Bent Pedicle Probes, an AWL, four taps, Screwdrivers for both Polyaxial and Monoaxial Screws, a Rod Bender, an In-situ Bending Iron, a Trial Rod, Rod Holding and Pushing Forceps, a Rod Pusher, a Rod Twist, a Parallel Spreader and Parallel Compressor, a Screw Cutter for Long Arm Screw with Counter Torque, a second Counter Torque, Crosslink Screwdriver and Nut Holder, Screw Nut Holder, T-Handle and Straight Handle Quick Couplings, an Insert Device for Fixation Pin, and an Aluminium Box. It is used by spine surgeons and neurosurgeons performing open posterior lumbar and thoracic pedicle screw-rod fixation for spinal stenosis with instability, spondylolisthesis, degenerative disc disease requiring fusion, spinal fracture stabilisation, and deformity correction using a 6.0mm rod construct.

6.0mm Rod System: Open Posterior Pedicle Screw Instrumentation

The 6.0mm rod is the larger of the two MIS-era pedicle screw rod diameters offered by Peak Surgicals — 5.5mm (2200-13xx series, $1,815.00) and 6.0mm (2200-01xx series, $2,198.90). The 6.0mm rod provides greater bending stiffness and fatigue resistance than a 5.5mm rod, making it the preferred diameter for longer-segment thoracolumbar constructs, high-load adult deformity correction, spinal fracture stabilisation requiring rigid fixation, and revision surgery where maximum construct rigidity is required. The 6.0mm Spinal Pedicle Screw Set is configured for open posterior surgery rather than MIS percutaneous access — it does not include a Persuader or Persuader Sleeve (the tulip-engagement instruments specific to percutaneous MIS access), Fixation Pins (the provisional rod locking mechanism used while the rod is passed subcutaneously), a Torque Wrench, or a Mould Rod. Instead, it includes a Parallel Spreader, Parallel Compressor, and Rod Twist for segmental alignment adjustment in the open exposure, and two Counter Torque instruments for screw cutter and general set screw counter-torque management during open posterior fixation.

Pedicle Access and Channel Assessment: Feelers, Probes, AWL, and Four Taps

Safe pedicle screw insertion begins with the AWL (2200-0123) establishing the cortical entry at the pedicle entry point, followed by the Pedicle Probe Straight (2200-0121) and Pedicle Probe Bent (2200-0122) advancing through the pedicle cancellous bone and into the vertebral body under fluoroscopic guidance. The Feeler for Screw Channel Straight (2200-0101) and Feeler for Screw Channel Bent (2200-0108) are then passed into the prepared pedicle channel and rotated to assess all cortical walls for intactness before tapping and screw insertion. The four taps — φ4.0mm (2200-0103) for small thoracic pedicles, φ5.5mm (2200-0104) for standard lumbar pedicles, φ6.0mm (2200-0106) for larger lumbar and L5-S1 pedicles, and φ7.0mm (2200-0107) for maximum-diameter screws in the ilium or large L4-S1 pedicles in adult deformity — cover the full screw diameter range required for thoracolumbar fixation with 6.0mm rod systems. The T-Handle Quick Coupling (2200-0124) drives the taps and other quick-connect instruments; the Straight Handle Quick Coupling (2200-0129) provides an alternative drive for constrained access positions.

Screw Insertion and Rod Management

The Screwdriver for Polyaxial Screw (2200-0113) and Screwdriver for Monoaxial Screw (2200-0114) provide the primary screw insertion torque for the two dominant tulip head designs used with 6.0mm rod systems. The Screw Nut Holder Hex (2200-0110) and Hex Screwdriver for Screw Nut (2200-0102) manage the set screw nut tightening. The Rod Bender (2200-0126) contours the 6.0mm rod ex situ to the planned sagittal and coronal alignment curve before insertion. The Trial Rod (2200-0115) measures the required rod length and curvature before the definitive rod is contoured. The In-situ Bending Iron (2200-0112) adjusts the rod after it is seated without requiring removal from the tulips. The Rod Holding Forcep (2200-0125) grips the rod for introduction into the wound. The Rod Pushing Forcep (2200-0128) and Rod Pusher (2200-0117) seat the rod into successive tulip heads. The Rod Twist (2200-0120) rotates the seated rod for coronal plane deformity correction. The Parallel Spreader (2200-0118) and Parallel Compressor (2200-0119) apply distraction and compression between adjacent levels along the seated rod before final set screw tightening.

Crosslink System, Screw Cutter, and Counter Torque Instruments

The Crosslink Screwdriver SW3.5 (2200-0105) and Crosslink Nut Holder Hex (2200-0111) install the transverse crosslink connector between the left and right rod systems, improving torsional construct stiffness. The Screw Cutter for Long Arm Screw (2200-0109) trims extended screw tulip arms after tightening in cases where extended tulip geometry was used for rod introduction through a minimally open incision. The Counter Torque for Screw Cutter (2200-0127) provides the reactionary force for the screw cutting operation, and the Counter Torque (2200-0130) provides a general counter-torque force during set screw final tightening to prevent rotational force transmission through the pedicle screw into the vertebral bone. The Insert Device for Fixation Pin (2200-0116) manages fixation pin elements used in certain screw head designs.

CE Mark, ISO 13485, and FDA Certification for 6mm Pedicle Screw Instrumentation Procurement

The Spinal Pedicle Screw Set 6.0mm is manufactured under CE Mark, ISO 13485, and FDA compliant quality standards. ISO 13485 certification confirms Peak Surgicals operates a documented quality management system covering design control, material traceability, and production consistency for spinal surgical instruments. CE Mark confirms conformity with European medical device regulations, and FDA compliance supports procurement for US-based hospitals, spine surgery centers, and neurosurgical departments requiring verified regulatory documentation.

Product Specifications

Frequently Asked Questions

What surgical procedures is the Spinal Pedicle Screw Set 6.0mm used for?
The Spinal Pedicle Screw Set 6.0mm is used for open posterior pedicle screw-rod fixation across lumbar and thoracic spinal levels where a 6.0mm rod diameter system is specified. Primary indications include lumbar and thoracolumbar spinal fusion for degenerative disc disease with instability, lumbar and isthmic spondylolisthesis requiring posterior reduction and fixation, thoracolumbar fracture stabilisation requiring rigid construct fixation, adult spinal deformity correction requiring long-segment posterior instrumentation where the larger 6.0mm rod provides superior bending stiffness and fatigue resistance over longer construct spans, and revision posterior spinal fixation for failed prior instrumentation where maximum construct rigidity supports fusion in a compromised healing environment.

How does this 6.0mm set differ from the Spinal Pedicle Screw Set 5.5mm also available from Peak Surgicals?
Both sets use the 2200-series instrument numbering and contain comparable pedicle access, rod management, and crosslink instruments, but they differ in rod system diameter and MIS versus open surgery configuration. The 5.5mm set (2200-13xx series, $1,815.00) is configured for MIS percutaneous surgery — it includes a dedicated 5.5mm Persuader + Sleeve for tulip engagement through percutaneous portals, eight Fixation Pins (Ball-type and Pillar-type) for provisional rod locking between levels, a 12 N.m Torque Wrench for calibrated set screw tightening, and a Mould Rod for subcutaneous rod length measurement. The 6.0mm set (2200-01xx series, $2,198.90) is configured for open posterior surgery — it does not include a Persuader, Fixation Pins, Torque Wrench, or Mould Rod, but includes a Parallel Spreader and Parallel Compressor for segmental alignment in the open exposure, and two Counter Torque instruments. The 6.0mm rod diameter provides greater bending stiffness for longer-segment constructs and higher-demand cases.

Why are two separate Counter Torque instruments (2200-0127 and 2200-0130) included?
The Counter Torque for Screw Cutter (2200-0127) is specifically paired with the Screw Cutter for Long Arm Screw (2200-0109) — when the screw cutter shears the extended tulip arm of a pedicle screw, it generates a rotational force that would rotate the underlying pedicle screw in the bone without a counter-torque restraint. The Counter Torque for Screw Cutter engages the tulip nut and resists this rotation, preventing the cutting force from displacing the screw. The general Counter Torque (2200-0130) is used during final set screw tightening at any screw level in the construct — it holds the tulip body stable while the screwdriver applies the final locking torque to the set screw, preventing the tightening torque from being transmitted through the pedicle screw to the surrounding vertebral bone. Both functions require distinct geometry matched to their respective operations.

What is the Feeler for Screw Channel used for?
The Feeler for Screw Channel (Straight: 2200-0101; Bent: 2200-0108) is passed into the prepared pedicle drill hole or tapped channel before the pedicle screw is inserted to assess the integrity of all four walls of the channel. The tip of the feeler is designed to detect cortical resistance when it contacts an intact cortical wall, and to drop through or feel a loss of resistance if it passes through a cortical breach in any direction. In pedicle screw placement, a medial cortical breach risks spinal canal violation and cord or root injury; a lateral breach risks transverse foramen entry and vascular injury; superior or inferior breaches can cause nerve root irritation or disc injury. Pre-insertion feeler assessment of all four channel walls, confirmed at both straight and bent trajectories, provides the surgeon with information about channel integrity before the wider-diameter screw is introduced.

What certifications does this set carry?
The Spinal Pedicle Screw Set 6.0mm is manufactured under CE Mark, ISO 13485, and FDA compliant quality standards. ISO 13485 certification confirms Peak Surgicals operates a documented quality management system covering design control, material traceability, and manufacturing consistency for spinal surgical instruments. CE Mark confirms conformity with European medical device regulations, and FDA compliance supports procurement for US hospitals, spine surgery centers, and neurosurgical departments requiring verified regulatory documentation for pedicle screw instrumentation purchases.