PEEK implant with hydroxyapatite represented on a vertebra

Comparison of materials

PEEK-OPTIMATM HA Enhanced as an alternative to metal

Image features, stiffness and bone integration that can make PEEK with HA an option for traditionally metallic applications.

Technical view

Another approach to traditional metal requirements

The document counters limitations associated with metal components — image artifacts, higher stiffness, weight, thermal conduction and metal exposure — to the characteristics of PEEK-OPTIMA HA Enhanced.

radiolucency

Reduces metal interference and can facilitate control of the interface between bone and device.

Compatible rigor

The closest modulus to the bone can help the designer manage the load distribution.

Non-metallic material

Avoids exposure of the patient to metal, a relevant aspect when there is concern with sensitivity.

Integrated HA

Hydroxyapatite crystals distributed in the matrix dispense a surface coating of HA.

Technical comparison

Titanium and other alloys remain essential in many indications. The alternative in PEEK should be evaluated when radiolucency, lower mass, near bone modulus, thermal insulation or free manufacturing are relevant requirements.

Applications presented

The original material highlights screws and anchors in sports medicine, intersomatic devices in column and cranial, orbital, middle third and mandibular plates in craniofacial surgery.

Device-based choice

Metal replacement is not automatic. Load, fixation, fatigue, wear, geometry, sterilization, manufacturing method and clinical evidence need to be analyzed and validated for each application.