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Spine · Thoracolumbar

QUATRO Quad-lead thoracolumbar screws

Name: QUATRO Quad-lead thoracolumbar screws
Brand: Normmed

Pedicle screws with a quad-lead thread design.

EU MDR

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Overview

QUATRO is a posterior fixation system for the thoracic, lumbar and sacral spine, T4 to S1. It is built around a combined thread: a quad-lead cortical thread on the proximal shank and a dual-lead thread below it. The whole system is placed with the PLEXUS PLUS instrument set.

Product group: Spine
System: Thoracolumbar
Anatomical region: Thoracolumbar spine
Material: Titanium alloy; rods in titanium alloy or Cr-Co
Device class (EU MDR): IIb
Manufacturer: NORMMED MEDİKAL SAN. VE TİC. A.Ş., Ankara

Intended purpose, contraindications, warnings and precautions are given in the instructions for use. Search the e-IFU

Design rationale

Quad-lead cortical thread

A quad-lead cortical thread on the proximal shank is intended to engage the pedicle isthmus. Below it, a dual-lead thread carries the screw forward through cancellous bone. The two profiles share one shank and are designed to keep insertion quick.

Buttress-thread set screw

A buttress-thread set screw sits in the polyaxial head and is designed to avoid cross-threading when the rod is locked. Final locking is made through the torque-limiting handle, with the anti-torque holding the head. Locking is a one-step mechanism.

Screws and rods

The range holds quad-lead polyaxial screws, listhesis polyaxial screws with extended tabs, cannulated fenestrated screws and a cannulated sacroiliac polyaxial screw.

Works with derotation sleeves

ATLAS derotation sleeves attach to the heads of QUATRO polyaxial and monoaxial screws. They link the apical vertebrae into one frame, so the force of the manoeuvre is carried by both pedicles of every vertebra in it. Insertion, contouring and tightening follow the QUATRO technique.

Hooks and connectors

Hooks and connectors are available where anatomical support is needed, and transverse connectors are intended to resist rotation of the construct.

Indications

Stabilisation of spinal segments in the thoracic, lumbar and sacral spine (T4 to S1) as an adjunct to fusion, in skeletally mature patients
Degenerative disc disease
Spondylolisthesis
Trauma (fracture or dislocation)
Spinal stenosis
Curvatures: scoliosis, kyphosis, lordosis
Tumour
Pseudarthrosis
Failed previous fusion

Source: Normmed product catalogue.

Documents for this product

Instructions for usee-IFU search by REF or lot Surgical techniquePDF, on request Product brochurePDF, on request Product catalogueSizes and references CertificatesCE and quality certificates EU declaration of conformityBy e-mail, on request ISO 13485 certificateBy e-mail, on request

Regulatory status

This product belongs to the thoracolumbar fixation system (pedicle screws, set screws, rods, connectors and hooks) named on an EU MDR certificate. SILVER is not covered by this certificate.