title: External fixation of unstable pelvic ring fractures: comparative rigidity of some current frame configurations.
mesh_terms: D001696:Biomechanical Phenomena; D005592:Fracture Fixation / Q000295:instrumentation; D006801:Humans; D008297:Male; D009984:Orthopedic Fixation Devices; D010384:Pelvic Bones / Q000293:injuries*