TY - JOUR
T1 - Measurement accuracy in congenital scoliosis
AU - Facanha-Filho, F. A.M.
AU - Winter, R. B.
AU - Lonstein, J. E.
AU - Koop, S.
AU - Novacheck, T.
AU - L'Heureux, Jr
AU - Noren, C. A.
PY - 2001
Y1 - 2001
N2 - Background: The accuracy of measurement of curves in idiopathic scoliosis has been extensively studied; however, we know of only one article in the literature concerning the accuracy of measurement of curves in congenital scoliosis. That article stated that intraobserver variability was ±9.6° and interobserver variability was ±11.8°. Methods: Sixty-nine curves in fifty patients with congenital scoliosis were measured on two separate occasions by seven different observers with varying experience in curve measurement. Results: Mean intraobserver variance ranged from 1.9° to 5.0°, with an average of 2.8° (95% confidence limit, ±3°) for the seven observers. The interobserver variance was 3.35° (95% confidence limit, 7.86°). Conclusions: It is possible to measure curves in congenital scoliosis with much greater accuracy than previously reported. In the clinical situation in which a skilled observer can measure two radiographs at the same time, an accuracy of ±3° can be expected 95% of the time.
AB - Background: The accuracy of measurement of curves in idiopathic scoliosis has been extensively studied; however, we know of only one article in the literature concerning the accuracy of measurement of curves in congenital scoliosis. That article stated that intraobserver variability was ±9.6° and interobserver variability was ±11.8°. Methods: Sixty-nine curves in fifty patients with congenital scoliosis were measured on two separate occasions by seven different observers with varying experience in curve measurement. Results: Mean intraobserver variance ranged from 1.9° to 5.0°, with an average of 2.8° (95% confidence limit, ±3°) for the seven observers. The interobserver variance was 3.35° (95% confidence limit, 7.86°). Conclusions: It is possible to measure curves in congenital scoliosis with much greater accuracy than previously reported. In the clinical situation in which a skilled observer can measure two radiographs at the same time, an accuracy of ±3° can be expected 95% of the time.
UR - http://www.scopus.com/inward/record.url?scp=0035155084&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0035155084&partnerID=8YFLogxK
U2 - 10.2106/00004623-200101000-00006
DO - 10.2106/00004623-200101000-00006
M3 - Article
C2 - 11205857
AN - SCOPUS:0035155084
SN - 0021-9355
VL - 83
SP - 42
EP - 45
JO - Journal of Bone and Joint Surgery - American Volume
JF - Journal of Bone and Joint Surgery - American Volume
IS - 1
ER -