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About this product

Division: Spine
Category: Cervical – Posterior Fusion

The MOUNTAINEER® OCT Spinal System is DePuy Synthes Spine’s occipito-cervico-thoracic spinal system. With the MOUNTAINEER OCT Spinal System, surgeons can choose a fusion solution that solves the unique problems they face.  Every challenge has a solution. The MOUNTAINEER OCT Spinal System has been designed to be both simple and versatile and offers seamless junctional connections, a breadth of fixation options, and optimal control.

This system is also compatible with our EXPEDIUM® System and Cobalt-Chromium Alloy Rods that offer the strength needed for deformity correction, without compromising imaging capabilities.

The MOUNTAINEER OCT Spinal System offers a comprehensive set of solutions that provides:

– Ease of Use
– Choice
– Unique Fit
– Control
– Tradition


Key Features

In Short Degenerative & Trauma

– Square Thread closure mechanism
– Smart Screw features: Favored Angle, Bulleted Tip, TOP-NOTCH™ Implant, Polyaxial Drag
– 3.5 mm, 4.0 mm and 4.35 mm diameter screws
– Long Shank Screws, Cable and Angled LOC connectors
– Instruments: all-in-one and SUMMIT® System-style screwdrivers, TOP-NOTCH™ Rod Reducer

In Complex Reconstruction

– Midline OC fixation & jointed OC rods
– Wide selection of fixation options: screws, hooks & cables
– Seamless connections to the EXPEDIUM System: adjustable wedding bands, dual diameter rods
– Unique Medial/Lateral Favored Angle Screws
– Streamlined Instrumentation: jointed OC-driver, flexible OC instruments


Intended Use

When intended to promote fusion of the cervical spine and occipito-cervico-thoracic junction (occiput -T3), the MOUNTAINEER OCT Spinal System is intended for:

  • Degenerative Disc Disease (DDD),
  • spondylolisthesis,
  • spinal stenosis,
  • fracture/dislocation,
  • atlanto/axial fracture with instability,
  • occipitocervical dislocation,
  • revision of previous cervical spine surgery,
  • and tumors.

The occipital bone screws are limited to occipital fixation only. The use of the minipolyaxial screws is limited to placement in the cervical and upper thoracic spine (C1-T3). The Songer Cable System, to be used with the MOUNTAINEER OCT Spinal System, allows for wire/cable attachment to the posterior cervical spine. The MOUNTAINEER OCT Spinal System can also be linked to the ISOLA™, TiMX™, MONARCH®, MOSS MIAMI™, and EXPEDIUM Systems using the dual wedding band and axial connectors, and via dual diameter rods.

The surgeon must be thoroughly knowledgeable not only in the medical and surgical aspects of the implant, but must also be aware of the mechanical and metallurgical limitations of metallic surgical implants.

Postoperative care is extremely important. The patient must be instructed in the limitations of the metallic implant and be warned regarding weight bearing and body stresses on the appliance prior to firm bone healing. The patient should be warned that noncompliance with postoperative instructions could lead to failure of the implant and possible need thereafter for additional surgery to remove the device.

This publication is not intended for distribution in the USA.

Features & Benefits

Enhanced Polyaxial Screw Design

  Features Benefits
60 degree cone of angulation with additional 15 degree Favored Angle bias Allows for screw fixation in difficult anatomy
  • Poly drag
  • TOP NOTCH™ System
Provides more control of the screw head for easier rod placement
Square Thread Designed to reduce cross threading and head splay
Tapered form tapping tip Allows easier screw insertion with strong bone purchase

Broadened Offering of Polyaxial Screws

  Features Benefits
  • Favored Angle Screw (3.5 and 4.0mm shank)
  • Medial/Lateral Favored Angle Screw (3.5, 4.0, 4.35mm shank)
  • Provides options for many anatomical situations
  • Only OCT system offering a 4.35mm screw
Long Shank Favored Angle Screw (3.5 and 4.0mm shank) Provides protection of delicate structures with 10mm smooth surface

Innovative New Concepts

  Features Benefits
Head-to-Head Cross Connector Offers construct stability where rod-to-rod connectors will not work
Adjustable Wedding Band (3.5-4.75, 5.5, 6.35mm) Allows connection to Thoracic-Lumbar systems with potentially  less rod contouring
Adjustable OC Rod Allows easier connection across the Occipito-Cervico junction with less contouring and the ability to revisit head position


  Features Benefits
  • Small
  • Large
  • Medial/Lateral
Address many anatomical situations

OC Plate

  Features Benefits
Single plate option with three midline fixation points Midline fixation in the area of greatest bone thickness
Inner set screw Designed to provide easy  fixation of the rod to the plate
Add-on Lateral Washer offering two additional points of fixation laterally Provides additional lateral points of fixation on the occiput

New Instruments

  Features Benefits
Longer instruments with silicone handles Provides better visualization and ease of use due to ergonomically designed instruments with longer handles for use in the cervical spine


Please refer to the surgical technique guide or package inserts if included for a complete list of indications, contraindications, precautions and warnings. For further information on DePuy Synthes Products, please contact your local DePuy Synthes Representative .
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