Four-corner Arthrodesis With a Locking, Dorsal Circular Polyether-Ether-Ketone (PEEK-Optima) PlateRhee, Peter C. DO, MS; Kakar, Sanjeev MD, MRCS; Shin, Alexander Y. MDTechniques in Hand & Upper Extremity Surgery: December 2012 - Volume 16 - Issue 4 - p 236–241 doi: 10.1097/BTH.0b013e31826d221a Techniques Abstract Author Information Scaphoidectomy and 4-corner arthrodesis can be a successful salvage procedure for scaphoid nonunion advanced collapse and scapholunate advanced collapse. Traditional methods of fixation include Kirschner wires, staples, and/or headless compression screws. Nonlocking, dorsal circular plates, manufactured from stainless steel, have been advocated to allow early wrist range of motion and improved union rates. However, the reported union rates have been variable and inconsistent. This wide results have been attributed to the difficulty in assessing union with plain film radiograph due to the radio-opaque plate. Recently, a locking, dorsal circular plate, comprised of a radiolucent polyether-ether-ketone (PEEK-Optima), has been introduced with the additional benefit of providing a fixed-angle construct and allowing a more accurate assessment of bone union with plain film imaging studies. Department of Orthopedic Surgery, Division of Hand and Microvascular Surgery, Mayo Clinic, Rochester, MN Conflicts of Interest and Source of Funding: The authors report no conflicts of interest and no source of funding. Address correspondence and reprint requests to Alexander Y. Shin, MD, Department of Orthopedic Surgery, Division of Hand and Microvascular Surgery, Mayo Clinic, 200 First Street SW, Rochester, MN 55905. E-mails: firstname.lastname@example.org. © 2012 Lippincott Williams & Wilkins, Inc.