Measurement of acetabular index intraobserver and interobserver variation.
Pelvic radiographs of 25 children aged 6 months to 2 years had the acetabular index measured 3 times by each of five pediatric orthopaedists. Interobserver measurements were found to vary +/-3.0 degrees, whereas the intraobserver variation was +/-3.6 degrees. This error reflects only measurement error and does not consider error introduced with different positioning of the pelvis.
Spatz
D K
DK
Alfred I. duPont Institute, Wilmington, Delaware 19899, USA.
Reiger
M
M
Klaumann
M
M
Miller
F
F
Stanton
R P
RP
Lipton
G E
GE
D000077:Acetabulum / Q000000981:diagnostic imaging*; D015982:Bias; D002675:Child, Preschool; D006618:Hip Dislocation, Congenital / Q000000981:diagnostic imaging*; D006801:Humans; D007223:Infant; D015588:Observer Variation; D011859:Radiography; D012494:Sampling Studies