Open AccessSupine and Standing AP Pelvis Radiographs in the Evaluation of Pincer Femoroacetabular Impingement
Author(s) -
Timothy J. Jackson,
Allyson Estess,
Gregory J. Adamson
Publication year - 2016
Publication title -
clinical orthopaedics and related research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.178
H-Index - 204
eISSN - 1528-1132
pISSN - 0009-921X
DOI - 10.1007/s11999-016-4766-7
Subject(s) - medicine , femoroacetabular impingement , supine position , radiography , pelvis , orthodontics , radiology , surgery
Pelvic tilt can affect the presence of the ischial spine sign and crossover sign. Numerous studies of pelvic tilt on radiographic measurements of pincer impingement have shown that increasing anterior tilt is associated with more radiographic signs of pincer impingement. However, to our knowledge, no study has directly compared supine and standing plain radiographs in patients with respect to lateral center-edge (LCE) angle, acetabular inclination, crossover sign, and ischial spine sign.