The Ischial Spine in Developmental Hip Dysplasia: Unraveling the Role of Acetabular Retroversion in Periacetabular Osteotomy.
Gerard El-HajjHicham Abdel-NourRami AyoubiJoseph MaaloulyFouad JabbourRaja AshouAlexandre NehmePublished in: Advances in orthopedics (2020)
The PRISS, a radiographic sign reflecting AR, was found to be significantly associated with dysplastic hips requiring PAO where AR was previously not considered a factor in the manifestation of symptoms and subsequent requirement for surgery. Moreover, the PRISS can also serve as an adequate radiographic sign for estimating acetabular version on pelvic radiographs.