Table 1.

Development Stages of Porous PEEK in the Literature

Source	Structural Characterization	Mechanical Testing	Cell Response	Animal Models	FDA Clearance	In Clinical Use
32Edwards et al., 2012	●	●	●
13Zhao et al., 2013	●		●	●
33Landy et al., 2013	●	●	●
34Evans et al., 2015	●	●	●	●	●	●
35Torstrick et al., 2016
36Evans et al., 2016
37Evans et al., 2017
38Siddiq et al., 2015	●	●
39Roskies et al., 2016	●		●

The Web of Science database was searched for “TITLE: ((porous OR scaffold OR three-dimensional OR 3D) AND (PEEK OR polyether ether ketone OR polyether-ether-ketone OR polyetheretherketone))” with no date restrictions on November 6, 2016. 40 results were found. 34 results were excluded based on: non-medical focus; theoretical models; porous PEEK composites; non-PEEK materials; and non-porous materials. 3 articles were added from the authors’ library.