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A welcome message from the Chair of the Consortium

 The focus and the work product of this Consortium is dedicated to all members of the Armed Forces, especially our Wounded Warriors.



The Major Extremity Trauma Research Consortium is funded through cooperative agreements with the United States Army Institute of Surgical Research (USAISR) Orthopaedic Extremity Trauma Research Program (OETRP) (Award # W81XWH-09-2-0108) and the DOD Peer Reviewed Orthopaedic Research Program (PRORP) of the Congressionally Directed Medical Research Program (CDMRP) (Award # W81XWH-10-2-0090).

TAOS Study

TAOS Study


Comparison of Transtibial Amputation with and without a Tibia-Fibula Synostosis


Principal Investigator: Michael Bosse, MD

The primary objective of this study is to compare levels of impairment and functional outcomes for patients undergoing a transtibial amputation and randomized to receive an endbearing tibia-fibula synostosis (Ertl procedure) versus a standard posterior flap procedure (Burgess procedure). Secondary objectives are to 1) compare the fit and the alignment of the prosthesis together with levels of comfort and satisfaction between treatment groups; and 2) compare rates of re-hospitalizations for complications, resource utilization, and overall treatment costs for patients undergoing a below the knee amputation who are randomized to receive an end-bearing tibia-fibula synostosis versus a standard posterior flap procedure.



This study is being funded by DoD CDMRP PRORP METRC Consortium Award (W8XWH-10-0090).