SEPTEMBER 2013 |฀Volume฀36฀•฀Number฀9 n Feature Article abstract Full article available online at Healio.com/Orthopedics. Search: 20130821-21 Mixing implants with differing metallic compositions has been avoided for fear of gal- vanic corrosion and subsequent failure of the implants and of bone healing. The purpose of this study was to evaluate upper-extremity fractures treated with open reduction and internal fixation with metallic implants that differed in metallic composition placed on the same bone. The authors studied the effects of using both stainless steel and titanium implants on fracture healing, implant failure, and other complications associated with this method of fixation. Their hypothesis was that combining these metals on the same bone would not cause clinically significant nonunions or undo clinical effects from gal- vanic corrosion. A retrospective review was performed of 17 patients with upper-extremity fractures fixed with metal implants of differing metallic compositions. The primary endpoint was fracture union. Eight clavicles, 2 proximal humeri, 3 distal humeri, 3 olecranons, and 1 glenoid fracture with an average follow-up 10 months were reviewed. All frac- tures healed. One patient experienced screw backout, which did not affect healing. This study implies that mixing implants with differing metallic compositions on the same bone for the treatment of fractures does not adversely affect bone healing. No evidence existed of corrosion or an increase in complications with this method of treatment. Contrary to prior belief, small modular hand stainless steel plates can be used to assist in reduction of smaller fracture fragments in combination with anatomic titanium plates to obtain anatomic reduction of the fracture without adversely affect- ing healing. Mixing Implants of Differing Metallic Composition in the Treatment of Upper- extremity Fractures DANIEL ACEVEDO, MD; BO NASMYTH LOY, MD; BRIAN LEE, MD; REZA OMID, MD; JOHN ITAMURA, MD The authors are from the Department of Orthopaedic Surgery (DA, BNL, BL, RO), Keck School of Medicine, University of Southern California; and Kerlan-Jobe Orthopaedic Clinic (JI), Los Angeles, California. The authors have no relevant financial relationships to disclose. Correspondence should be addressed to: Reza Omid, MD, Department of Orthopaedic Surgery, Keck School of Medicine, University of Southern California, 1200 N State St, GNH 3900, Los Angeles, CA 90033 (omid@usc.edu). doi: 10.3928/01477447-20130821-21 ERRATUM This article has been amended to include a factual correction. An error was identified subsequent to its original printing (2013; 36[9]:e1175-e1179), which was acknowledged in an erratum printed in 2014; 37(2):77. The online article and its erratum are considered the version of record. e1175