Effect of pelvic tilt on acetabular retroversion: a study of pelves from cadavers.

Details

Serval ID
serval:BIB_5B21AACC1D06
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Effect of pelvic tilt on acetabular retroversion: a study of pelves from cadavers.
Journal
Clinical Orthopaedics and Related Research
Author(s)
Siebenrock K.A., Kalbermatten D.F., Ganz R.
ISSN
0009-921X
Publication state
Published
Issued date
2003
Peer-reviewed
Oui
Number
407
Pages
241-248
Language
english
Abstract
Pelvic inclination is difficult to control on a standard radiograph of the pelvis and has a direct influence on the appearance of acetabular version. By defining the normal range of the distance between the symphysis and the sacrococcygeal joint on 86 standard anteroposterior radiographs of pelves a technique was developed to evaluate pelvic inclination. A statistically significant correlation between this distance and pelvic inclination was shown in four cadaver pelves. Acetabular retroversion signs (cross-over, posterior wall signs) were evaluated on normal pelves from cadavers (two females, two males) after mounting on a holding device and wire marking of the acetabular rims. Radiographs were taken 3 degrees stepwise through the range of 9 degrees inclination to 12 degrees reclination. At the neutral position, two acetabula appeared with both positive retroversion signs compared with none at 6 degrees reclination. At 9 degrees pelvic inclination all acetabula had both signs. Retroversion signs were significantly more pronounced and found at lower pelvic tilt angles in the pelves from males than from females. Evaluation of pelvic inclination will help to decrease measurement errors in assessment of acetabular orientation and femoral head coverage. This will be valuable in preoperative planning of reorientation procedures.
Keywords
Acetabulum/physiopathology, Acetabulum/radiography, Adolescent, Adult, Aged, Aged, 80 and over, Coccyx/physiopathology, Coccyx/radiography, Female, Hip Joint/physiopathology, Hip Joint/radiography, Humans, Joint Diseases/physiopathology, Joint Diseases/radiography, Male, Middle Aged, Pelvic Bones/physiopathology, Pelvic Bones/radiography, Posture/physiology, Pubic Symphysis/physiopathology, Pubic Symphysis/radiography, Range of Motion, Articular/physiology, Sacrum/physiopathology, Sacrum/radiography, Sex Factors
Pubmed
Web of science
Create date
18/02/2008 10:27
Last modification date
20/08/2019 15:14
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