Open AccessMedialization of the Hip’s Center with Periacetabular Osteotomy: Validation of Assessment with Plain Radiographs
Author(s) -
Lucas M. Fowler,
Jeffrey J. Nepple,
Clarabelle DeVries,
Michael D. Harris,
John C. Clohisy
Publication year - 2020
Publication title -
clinical orthopaedics and related research
Language(s) - English
Resource type - Journals
eISSN - 1528-1132
pISSN - 0009-921X
DOI - 10.1097/corr.0000000000001572
Subject(s) - medicine , radiography , femoral head , fluoroscopy , acetabulum , hip dysplasia , osteotomy , instant centre of rotation , nuclear medicine , orthodontics , surgery , radiology , geometry , rotation (mathematics) , mathematics
Periacetabular osteotomy (PAO) increases acetabular coverage of the femoral head and medializes the hip's center, restoring normal joint biomechanics. Past studies have reported data regarding the degree of medialization achieved by PAO, but measurement of medialization has never been validated through a comparison of imaging modalities or measurement techniques. The ilioischial line appears to be altered by PAO and may be better visualized at the level of the inferior one-third of the femoral head, thus, an alternative method of measuring medialization that begins at the inferior one-third of the femoral head may be beneficial.