تعذّر تحميل توفر الاستلام
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ضمان استعادة الأموال خلال 30 يومًا.
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The Spinal Pedicle Screw System from Peak Surgicals is a 30-piece comprehensive pedicle screw instrumentation set in stainless steel, designed to support the complete intraoperative workflow of posterior spinal pedicle screw fixation — covering pedicle access preparation, screw channel feeler assessment, tapping across four diameters, polyaxial and monoaxial screw insertion, rod introduction and contouring, in-situ rod bending, rod-to-screw compression and distraction, crosslink fixation, and screw cutter management. The set includes straight and bent Pedicle Probes and Screw Channel Feelers for pedicle integrity assessment, four Taps (φ4.0 to φ7.0mm) for screw channel preparation, dedicated screwdrivers for polyaxial and monoaxial screw types, a Rod Bender and In-situ Bending Iron for intraoperative rod contouring, Parallel Spreader and Parallel Compressor for segmental distraction and compression, a Trial Rod, and all associated nut holders, counter torques, and quick coupling handles, supplied in an aluminium box. It is used by spine surgeons and neurosurgeons in hospital operating theatres performing posterior spinal instrumentation for lumbar and thoracic fusion, spinal deformity correction, spinal stenosis with instability, spondylolisthesis, spinal fracture stabilisation, and spinal tumour surgery.
Safe pedicle screw insertion begins with identifying the pedicle entry point on the posterior surface of the vertebra, establishing a pedicle channel through the pedicle cortex and into the vertebral body without breaching the medial, lateral, superior, or inferior pedicle cortex walls, and confirming the channel integrity before screw insertion. The AWL (PS-AWL-023) establishes the initial cortical entry at the pedicle entry point — the pedicle entry point varies by spinal level and vertebral morphology, and the AWL creates the cortical breach through which the pedicle probe is advanced. The Pedicle Probe Straight (PS-PPS-021) advances through the cancellous bone of the pedicle and into the vertebral body along the correct screw trajectory under fluoroscopic guidance — the curved tip of the straight probe follows the cancellous trabecular path between the pedicle cortex walls. The Pedicle Probe Bent (PS-PPB-022) addresses levels or trajectories where the standard straight probe cannot be advanced without cortical contact, providing an alternative angulation for difficult pedicle access. The Feeler for Screw Channel Straight (PS-FSCS-001) and Feeler for Screw Channel Bent (PS-FSCB-008) are then used to assess the integrity of the prepared pedicle channel — the feeler is passed around the walls of the channel and rotated to feel for any cortical breach that would indicate medial or lateral pedicle wall penetration before the screw is inserted.
The set includes four taps in diameters matched to the pedicle screw sizes used across the thoracic, lumbar, and sacral spinal levels. Tap φ4.0 (PS-T-003) prepares the pedicle channel for smaller-diameter screws used in the thoracic spine and smaller lumbar pedicles. Tap φ5.5 (PS-T-004) addresses the intermediate range used for standard lumbar pedicle screw sizes. Tap φ6.0 (PS-T-006) is used for larger lumbar pedicle screws where the pedicle diameter permits a 6mm screw diameter, providing enhanced pullout strength in high-load lumbar levels. Tap φ7.0 (PS-T-007) prepares the channel for 7mm large-diameter screws used in the ilium or large lumbar pedicles where maximum fixation strength is required, such as in adult deformity correction or high-grade spondylolisthesis requiring sacropelvic fixation. All taps are used with the T-Handle Quick Coupling (PS-TQC-024) or Straight Handle Quick Coupling (PS-SHQC-029) depending on access angle, and pre-tapping is particularly important in cortical bone at the pedicle isthmus where a self-tapping screw alone may generate excessive rotational force on the pedicle cortex during insertion.
The set provides separate screwdrivers for the two dominant pedicle screw head designs used in contemporary posterior spinal instrumentation. The Screwdriver for Polyaxial Screw (PS-SPS-013) engages the inner drive mechanism of a polyaxial pedicle screw head — in polyaxial screws, the screw shaft can pivot within the tulip head through a defined angular range before the set screw is tightened, allowing the rod to be inserted into the tulip without requiring the screw trajectory to exactly match the rod curvature. The Screwdriver for Monoaxial Screw (PS-SMS-014) engages a monoaxial pedicle screw, in which the screw head is fixed permanently in line with the screw shaft. Monoaxial screws provide a stiffer, stronger construct at the cost of reduced rod seating flexibility, and their use at specific levels (such as S1 in lumbosacral fusion or at the apex of a deformity correction) requires the dedicated monoaxial screwdriver for accurate torque application. The Screw Nut Holder Hex (PS-SNHH-010) and Hex Screwdriver for Screw Nut (PS-HSSN-002) complete the nut torque application toolkit for set screw final tightening.
The rod component of the procedure — bending the connecting rod to match the required sagittal and coronal spinal alignment and seating it into the pedicle screw tulip heads at each instrumented level — accounts for a significant proportion of the operative time in posterior spinal instrumentation and requires a complete set of dedicated instruments. The Rod Bender (PS-RB-026) contours the spinal rod ex situ to the planned spinal alignment curve before the rod is inserted into the screw heads. The In-situ Bending Iron (PS-IBI-012) makes minor rod adjustments after the rod is partially or fully seated in the pedicle screw heads — avoiding the need to remove and recontour the rod outside the wound when small alignment corrections are required after the rod is provisionally seated. The Trial Rod (PS-TR-015) allows the surgeon to test rod length, curvature, and seating fit before using the definitive implant rod. The Rod Holding Forcep (PS-RHF-025) grips the rod for controlled introduction into the wound and into the screw tulip heads. The Rod Pushing Forcep (PS-RPF-028) and Rod Pusherial (PS-RP-017) assist with seating the rod into the screw tulip at each level, providing the directed force needed to advance the rod into the tulip without applying torque through the pedicle screw. The Rod Twist (PS-RT-020) rotates the seated rod around its own longitudinal axis as part of the deformity correction manoeuvre in scoliosis or kyphosis cases.
