ASTM F 2028 : 2025 : REV A

1.1These test methods measure how much a prosthetic anatomic glenoid component rocks or pivots following dynamic displacement of the humeral head between opposing glenoid rims (e.g., superior-inferior or anterior-posterior). Motion of the anatomic glenoid component is quantified by measuring displacement opposite each loaded rim after dynamic rocking. Similarly, these test methods measure how much a prosthetic reverse glenoid baseplate rocks or pivots following dynamic articulation of the reverse glenoid component with a mating humeral liner. Motion of the reverse glenoid baseplate is quantified by measuring displacement before and after dynamic articulation.

1.2These test methods cover shoulder replacement designs with monolithic or modular anatomic glenoid components for cemented fixation as well as reverse glenoid components for uncemented fixation with the use of screws.

1.3This test method is intended to be used to compare or rank device designs.

1.4The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.5This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.6This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.