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. 1997 Mar-Apr;17(2):174-5.
doi: 10.1097/00004694-199703000-00007.

Measurement of acetabular index intraobserver and interobserver variation

D K Spatz  1 , M Reiger, M Klaumann, F Miller, R P Stanton, G E Lipton
Affiliations

Measurement of acetabular index intraobserver and interobserver variation

D K Spatz et al. J Pediatr Orthop. 1997 Mar-Apr.

Abstract

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.

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