title: Four-corner arthrodesis with a locking, dorsal circular polyether-ether-ketone (PEEK-Optima) plate.
abstract: 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.
authors.affiliation: Department of Orthopedic Surgery, Division of Hand and Microvascular Surgery, Mayo Clinic, Rochester, MN 55905, USA.
authors.forename: Peter C
authors.initials: PC
authors.lastname: Rhee
authors.forename: Sanjeev
authors.initials: S
authors.lastname: Kakar
authors.forename: Alexander Y
authors.initials: AY
authors.lastname: Shin
mesh_terms: D001174:Arthrodesis / Q000295:instrumentation* / Q000379:methods*; D001577:Benzophenones; D001672:Biocompatible Materials / Q000627:therapeutic use; D001860:Bone Plates; D000075202:Contraindications; D004867:Equipment Design; D005599:Fractures, Ununited / Q000601:surgery; D006801:Humans; D007659:Ketones / Q000627:therapeutic use; D050279:Metacarpal Bones / Q000601:surgery; D018579:Patient Selection; D011092:Polyethylene Glycols / Q000627:therapeutic use; D011108:Polymers; D021361:Scaphoid Bone / Q000293:injuries* / Q000601:surgery
chemical_list: D001577:Benzophenones; D001672:Biocompatible Materials; D007659:Ketones; D011108:Polymers; C063834:polyetheretherketone; D011092:Polyethylene Glycols