Measurement of spinopelvic sagittal alignment in the relaxed seated position rather than in the straight seated position is suitable for assessing spinopelvic mobility in patients before total hip arthroplasty.
Yohei OhyamaKentaro IwakiriYoichi OhtaYukihide MinodaAkio KobayashiHiroaki NakamuraPublished in: SICOT-J (2023)
The change in SS from the straight to the relaxed seated position widely varied in patients before THA. The spinopelvic radiograph in the relaxed seated position is appropriate when evaluating spinopelvic mobility for preoperative planning.