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Carbon-Fiber Spine Implants

Radiolucent carbon-fiber (CarboFix CarboClear®) implants that don't obscure imaging or interfere with radiation therapy — a critical advantage in spinal tumor care. Dr. Hobbs was the first surgeon in Indiana to use them.

Jonathan G. Hobbs, M.D., neurosurgeon
First in IndianaDr. Hobbs was the first surgeon in the state to implant CarboFix CarboClear® for spinal tumors
Radiolucent by design. Nearly invisible on CT and MRI, so a recurrence next to the hardware is not hidden.
Radiation passes cleanly. Negligible scatter and attenuation mean a more accurate dose to the tumor.
FDA-cleared for tumor stabilization. Built-in radiopaque markers still confirm implant position.
Medically reviewed by Jonathan G. Hobbs, M.D. · Updated June 2026

Dr. Jonathan Hobbs was the first surgeon in Indiana to use the CarboFix CarboClear carbon-fiber system to treat spinal tumors — bringing radiolucent implant technology to cancer care across Northwest Indiana.

CarboFix Spine — maker of the CarboClear carbon-fiber implant system
The material

What Are Carbon-Fiber Spine Implants?

Traditional spinal implants — the screws, rods, and plates used to stabilize the spine — are made of titanium or other metals. Carbon-fiber implants are made instead from carbon-fiber-reinforced PEEK (CFR-PEEK), a strong composite material. Dr. Hobbs uses the CarboFix CarboClear® system, which the FDA has cleared to stabilize the spine in patients with advanced spinal tumors.

The defining feature of carbon-fiber implants is that they are radiolucent — they are nearly invisible to X-rays, CT, and MRI. Metal hardware, by contrast, creates bright scatter and artifact that can obscure the surrounding bone and soft tissue on a scan, and it distorts the radiation beams used in cancer treatment.

For most spine surgery, titanium remains an excellent choice. But for patients with spinal tumors — who often need careful imaging follow-up and post-operative radiation therapy — the radiolucency of carbon fiber offers meaningful advantages. Small radiopaque markers are built into the implants so Dr. Hobbs can still confirm their exact position during and after surgery.

Interactive — compare the implants

See the Difference on a Scan

The same vertebra, stabilized two ways. Tap a material to see what a follow-up CT would show around the hardware.

Titanium implantsIllustrated cross-section
Titanium implant comparison Educational illustration of a vertebra with titanium implants. Soft bright and dark artifact bands obscure the highlighted area near the hardware. Implant Area to monitor
Metal artifact obscures the area near the hardware.

Simplified illustration for education — not an actual scan or an exact anatomical depiction.

Three advantages

Why Carbon Fiber?

Three advantages make carbon-fiber implants especially valuable in the treatment of spinal tumors.

01

Clearer CT & MRI

Artifact-free imaging means a tumor recurrence near the implant can be spotted early, enabling enhanced follow-up that metal hardware can obscure.

02

Better Radiation Therapy

Negligible backscattering and attenuation let radiation oncologists deliver a more accurate dose to the tumor, with less collateral effect on healthy tissue.

03

High Fatigue Resistance

Engineered for durability with a stiffness closer to bone than metal — offering strong support for non-fusion and delayed-fusion patients.

Why carbon fiber: clearer CT/MRI for enhanced follow-up; radiation therapy with negligible backscattering and attenuation for optimal dosage; and unparalleled fatigue resistance for enhanced support of non-fusion and delayed-fusion patients.
Source: CarboFix Orthopedics, maker of the CarboClear® system.
Compare

Carbon Fiber vs. Titanium in Cancer Care

When a tumor weakens the spine, surgery is often needed to relieve pressure on the spinal cord and stabilize the bone. Many of these patients also need radiation therapy — either before or after surgery — and lifelong imaging to watch for recurrence. This is exactly where the choice of implant material matters most.

Carbon-Fiber (CFR-PEEK)

  • Radiolucent — minimal artifact on CT and MRI
  • Does not distort radiation therapy beams
  • Stiffness closer to natural bone
  • Radiopaque markers confirm implant position

Traditional Metal (Titanium)

  • Scatter and artifact can hide tumor recurrence on scans
  • Distorts radiation dosing around the hardware
  • Proven, excellent choice for most non-tumor spine surgery
  • Long, well-established track record

The best implant depends on your diagnosis and treatment plan. Dr. Hobbs selects the material that gives you the safest result and the clearest path for any imaging or radiation you may need.

Candidacy

Who Benefits from Carbon-Fiber Implants?

Carbon-fiber implants are particularly valuable for patients whose care depends on clear imaging and precise radiation therapy.

Technology

Implant Technology, Chosen for You

Carbon fiber is one of several advanced implant options Dr. Hobbs draws on. Each is matched to the patient, the diagnosis, and the imaging and treatment that will follow.

Is carbon fiber right for every spine surgery?

No. For most non-tumor conditions, titanium remains a proven, excellent choice with a long track record. Carbon fiber earns its place when clear imaging follow-up and radiation therapy are part of the plan.

How fusion hardware works
Jonathan G. Hobbs, M.D.
Jonathan G. Hobbs, M.D.
Board-Certified Neurosurgeon · Spine Surgery
American Board of Neurological SurgeryABNS
Certified
The University of ChicagoResidency
Chicago
University of KentuckyM.D.
Kentucky
Why Dr. Hobbs

Why Choose Dr. Hobbs for Spinal Tumor Surgery

  • First in Indiana

    First surgeon in Indiana to use the CarboFix CarboClear carbon-fiber system for spinal tumors.

  • Tumor & Deformity Expertise

    Specialty-trained in diagnosing and surgically treating spinal tumors and complex deformities.

  • Board-Certified Neurosurgeon

    Certified by the American Board of Neurological Surgery.

  • Elite Training

    University of Kentucky medical degree; neurosurgery residency at the University of Chicago, serving as chief resident.

  • Coordinated Cancer Care

    Works alongside oncology and radiation-oncology teams to plan each patient's full treatment.

  • Lakeshore Bone & Joint Institute

    Practicing at Northwest Indiana's most preferred orthopedic and spine practice, with offices in Crown Point & Chesterton.

Frequently Asked Questions About Carbon-Fiber Implants

Carbon-fiber spine implants are spinal screws, rods, and plates made from carbon-fiber-reinforced PEEK (CFR-PEEK) instead of metal. Dr. Hobbs uses the CarboFix CarboClear system. Unlike titanium, these implants are radiolucent, meaning they do not block X-rays, CT, or MRI imaging and do not interfere with radiation therapy — important advantages when treating spinal tumors.
Metal implants create scatter and artifact on CT and MRI scans, which can hide a tumor recurrence near the hardware, and they distort radiation therapy beams. Carbon-fiber (CFR-PEEK) implants are radiolucent: they leave imaging clear so recurrence can be detected early, and they allow radiation oncologists to deliver a more accurate dose to the tumor with less collateral effect on healthy tissue.
No. One of the main advantages of carbon-fiber-reinforced PEEK implants is that they produce negligible backscattering and attenuation of radiation. This allows the radiation oncology team to plan and deliver radiation to a spinal tumor more precisely than is possible around traditional metal hardware.
Carbon-fiber-reinforced PEEK implants are engineered for high fatigue resistance and have a stiffness closer to natural bone than metal. The CarboClear system received FDA clearance to stabilize the spine in patients with advanced spinal tumors, including support for non-fusion and delayed-fusion situations. Radiopaque markers are built in so the surgeon can still confirm implant position on imaging.
Carbon-fiber implants are most often used for patients with primary or metastatic spinal tumors who need spinal stabilization and will benefit from clearer imaging follow-up and post-operative radiation therapy. Dr. Hobbs determines the right implant for each patient based on their diagnosis, tumor type, and overall treatment plan.
Yes. Jonathan G. Hobbs, M.D. was the first surgeon in Indiana to use the CarboFix CarboClear carbon-fiber implant system to treat spinal tumors. He offers it to appropriate patients at Lakeshore Bone & Joint Institute, with offices in Crown Point & Chesterton, Indiana.

Discuss Your Spinal Tumor Treatment Options

If you or a loved one has a spinal tumor, Dr. Hobbs can explain whether carbon-fiber implants are part of the right surgical plan — coordinated with your oncology and radiation team. Call today to schedule a consultation.

(219) 250-5010

Monday – Friday · 8:00 AM – 4:30 PM

Crown Point Office

500 E. 109th Avenue
Crown Point, IN 46307

Chesterton Office

601 Gateway Boulevard
Chesterton, IN 46304

Your next step

Discuss your spine care with Dr. Hobbs

Jonathan G. Hobbs, M.D. is a board-certified neurosurgeon at Lakeshore Bone & Joint Institute. For questions about carbon-fiber spine implants, call the office to arrange an individual evaluation and discuss which options may be appropriate.

Consultation offices: Crown Point, Chesterton. Your symptoms, examination, imaging, and prior treatment help guide the discussion.

Request a free second-opinion review

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