ASTM F1717 describes static and fatigue test methods for spinal implant assemblies evaluated in a vertebrectomy (corpectomy) model. It is widely used to compare mechanical behavior of spinal fixation constructs (for example, rod-and-screw or plate-based assemblies) under simplified, repeatable loading conditions.
If you need help aligning your construct, intended spinal location, and load case to the right F1717 setup (and the right fixture approach), talk with our team about your application before you commit to a test plan.
ASTM F1717-21 – Standard Test Methods for Spinal Implant Constructs in a Vertebrectomy Model
ASTM F1717 is a test method standard focused on comparative mechanical testing of spinal implant assemblies using a standardized vertebrectomy model. The intent is comparison across designs and configurations; it does not set pass/fail performance requirements.
Quick Definition
What it is: A set of laboratory test methods for static and fatigue evaluation of spinal implant constructs in a vertebrectomy model.
What it measures: Comparative stiffness/strength behavior and fatigue performance metrics derived from load–displacement (or torque–rotation) responses.
What it is not: A direct predictor of in-vivo performance or a performance specification with acceptance criteria.
What This Standard Covers
ASTM F1717 covers standardized approaches to mounting a spinal implant assembly into a vertebrectomy test model and applying defined static and cyclic loading. It includes guidance for measuring displacement/rotation, determining yield-related values, and evaluating stiffness and strength for comparative assessment.
Depending on construct design, not every assembly can be tested in every configuration described by the standard.
Why This Standard Matters in Testing
F1717 is commonly referenced for design verification and comparative benchmarking because it provides a consistent, repeatable fixture/model framework for multi-component spinal constructs. That repeatability is especially useful when comparing design changes (material changes, rod diameter changes, anchor-interface changes, connector changes, or alternate construct layouts).
The loading used is intentionally simplified relative to the complex loads seen in the body, so results are generally used for comparison between designs rather than direct clinical prediction.
Common Materials, Product Types, or Applications Covered
ASTM F1717 is typically applied to spinal fixation constructs intended to stabilize the spine while arthrodesis occurs, including multi-component assemblies built from elements such as anchors (for example, screws/hooks/wires/cables), longitudinal elements (for example, rods/plates), and connecting hardware.
Common use cases: Posterior spinal constructs and other instrumented assemblies where construct-level mechanical behavior (not just a single component) is the test focus.
Common Test or Verification Workflow
Programs that cite ASTM F1717 often follow a workflow like this:
- Define the construct configuration: Intended spinal location, anchor style, and assembly geometry to be represented.
- Build the vertebrectomy model: Commonly using polymer blocks (often UHMWPE) to standardize the “bone” interface and reduce variability.
- Select the loading mode(s): Static bending-type evaluations, static torsional evaluation, and cyclic (fatigue) evaluation as appropriate for the construct and comparison goal.
- Run static tests: Capture load–displacement or torque–rotation data to support comparative stiffness/strength metrics.
- Run fatigue tests: Apply cyclic loading to characterize fatigue behavior; environment (dry vs fluid) and frequency choices can materially affect outcomes.
- Report comparative results: Document test configuration, construct details, and the metrics calculated from the recorded responses.
Equipment Commonly Used for This Standard
ASTM F1717 testing is typically run on servo-hydraulic or electrodynamic fatigue test systems, or appropriately configured universal testing machines, with fixtures designed to apply the required force and/or torque modes.
Common equipment elements: Axial dynamic load frame (static + fatigue capable), load cell(s) sized for expected forces, displacement measurement (crosshead and/or external measurement as required by the lab’s method), torsion-capable actuation for rotational loading when needed, and a dedicated vertebrectomy-model fixture that holds the test blocks and constrains/permits the correct degrees of freedom.
Environment options: Some programs evaluate dry (ambient) first for consistency, then consider fluid exposure (for example, saline or simulated body fluid) when corrosion/fretting or lubricity at interfaces is part of the risk picture.
If you are selecting a load frame, actuator capacity, or a vertebrectomy-model fixture configuration for F1717 work, you can request a detailed quote based on your force/torque range, fatigue profile, and throughput needs.
How to Read This Designation or Revision
Designation format: ASTM F1717-21 refers to ASTM standard F1717 with a revision year suffix.
Year suffix meaning: The number after the dash indicates the year of original adoption or (if revised) the year of the last revision. A year in parentheses indicates the year of last reapproval, and an epsilon mark indicates an editorial change since the last revision or reapproval.
Practical tip: Because fixture details, definitions, and reporting expectations can evolve between revisions, purchase specifications and test reports should cite the exact edition used (for example, F1717-21) rather than only “ASTM F1717.”
Related Standards, Methods, or Frameworks
Depending on the device type and test objective, labs may pair ASTM F1717 with other spinal-implant standards that address different construct types or component-level mechanisms.
Commonly associated ASTM standards: ASTM F1798 (interconnection mechanisms/subassemblies), ASTM F2077 (intervertebral body fusion devices), and ASTM F2706 (occipital-cervical and occipital-cervical-thoracic constructs in a vertebrectomy model).
Get help configuring an ASTM F1717 test setup
When you are ready to scope equipment capacity (force/torque), fixture needs, and fatigue capability for ASTM F1717, request pricing for a configuration matched to your construct type and test plan.