External Fixation of Unstable Pelvic Fractures: Experiences in 22 Patients Treated with a Trapezoid Compression Frame.SLÄTIS, PÄR M.D.; KARAHARJU, ERKKI O. M.D.Clinical Orthopaedics & Related Research: September 1980 - Volume 151 - Issue - ppg 73-80 SECTION I: SYMPOSIUM: THE PELVIS: A Tribute to George F. Pennal: PDF Only