Summary

Objective: The purpose of this study is to evaluate thechanges in structural anatomy of cadaver pelves, withspecific emphasis on axial rotation, resulting from theapplication of TPO plates differing by type, angle andorientation. Sample population: Nine cadaver pelvesprocedure: The degree of axial rotation was determinedfor three different pelvic osteotomy plate types, four differentplate angles and two different orientations of thesame plate. Results: The observed degree of axial rotationwas significantly different than the degree ofaxial rotation predicted by the plate angle for eachgroup except the Rooks pelvic osteotomy plate. Conclusions/clinical relevance: In the triple pelvic osteotomythe final degree of axial rotation may be significantlydifferent than the predetermined plate angle.