Cortical Marrow Ratio in Plain X-rays of Femoral Neck Fractures: Reliability and Relation to BMD
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Cortical Marrow Ratio in Plain X-rays of Femoral Neck Fractures : Reliability and Relation to BMD. / Viberg, Bjarke; Severin Gråe Harbo, Frederik; Ryg, Jesper; Overgaard, Søren; Ovesen, Ole; Lauritsen, Jens M.
I: Jacobs Journal of Orthopedics and Rheumatology, Bind 2, Nr. 1, 019, 2016.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Cortical Marrow Ratio in Plain X-rays of Femoral Neck Fractures
T2 - Reliability and Relation to BMD
AU - Viberg, Bjarke
AU - Severin Gråe Harbo, Frederik
AU - Ryg, Jesper
AU - Overgaard, Søren
AU - Ovesen, Ole
AU - Lauritsen, Jens M
PY - 2016
Y1 - 2016
N2 - Objectives: The purpose of this study is to evaluate Cortical Marrow Ratio (CMR) for reliability and relation to low Bone Mineral Density (BMD) in patients with femoral neck fractures. Methods: A total of 132 consecutive femoral neck fracture patients (median age 81.2 years, IQR 70.6-86.1) were assessed with DXA scans and digital hip x-rays. CMR was measured twice by two independent raters and analysed for reliability. CMR was then compared to BMD by means of a sensitivity/specificity analysis. Results: Using total hip BMD, 47 patients had a T-score ≤ -2.5 with a median CMR of 1.61(IQR 1.44-1.74), and 85 patients had a T-score > -2.5 with a median CMR of 1.89 (IQR 1.77-2.11). The ICC was 0.87-0.98 for intra-rater and 0.86-0.90 for inter-rater reliability. CMR showed a correlation coefficient of 0.58-0.59, a sensitivity of 72.3-76.6 % and a specificity of 75.3-76.5 % in relation to low BMD. Conclusions: CMR was found to be a highly reliable measure with acceptable sensitivity and specificity in relation to low BMD.
AB - Objectives: The purpose of this study is to evaluate Cortical Marrow Ratio (CMR) for reliability and relation to low Bone Mineral Density (BMD) in patients with femoral neck fractures. Methods: A total of 132 consecutive femoral neck fracture patients (median age 81.2 years, IQR 70.6-86.1) were assessed with DXA scans and digital hip x-rays. CMR was measured twice by two independent raters and analysed for reliability. CMR was then compared to BMD by means of a sensitivity/specificity analysis. Results: Using total hip BMD, 47 patients had a T-score ≤ -2.5 with a median CMR of 1.61(IQR 1.44-1.74), and 85 patients had a T-score > -2.5 with a median CMR of 1.89 (IQR 1.77-2.11). The ICC was 0.87-0.98 for intra-rater and 0.86-0.90 for inter-rater reliability. CMR showed a correlation coefficient of 0.58-0.59, a sensitivity of 72.3-76.6 % and a specificity of 75.3-76.5 % in relation to low BMD. Conclusions: CMR was found to be a highly reliable measure with acceptable sensitivity and specificity in relation to low BMD.
M3 - Journal article
VL - 2
JO - Jacobs Journal of Orthopedics and Rheumatology
JF - Jacobs Journal of Orthopedics and Rheumatology
SN - 2379-5220
IS - 1
M1 - 019
ER -
ID: 252054025