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Correlations of Medial Joint Space Width on Fixed-Flexed Standing Computed Tomography and Radiographs With Cartilage and Meniscal Morphology on Magnetic Resonance Imaging
Journal article   Open access   Peer reviewed

Correlations of Medial Joint Space Width on Fixed-Flexed Standing Computed Tomography and Radiographs With Cartilage and Meniscal Morphology on Magnetic Resonance Imaging

N A Segal, E Frick, J Duryea, F Roemer, A Guermazi, M C Nevitt, J C Torner, D T Felson and D D Anderson
Arthritis care & research (2010), Vol.68(10), pp.1410-1416
10/2016
DOI: 10.1002/acr.22888
PMCID: PMC5027176
PMID: 26991547
url
https://doi.org/10.1002/acr.22888View
Published (Version of record) Open Access

Abstract

To assess whether medial tibiofemoral joint space width (JSW) on 3-dimensional (3-D) standing computed tomography (SCT) correlates more closely with magnetic resonance imaging cartilage morphology (CM) and meniscal scores than does radiographic 2-D JSW. Participants in the Multicenter Osteoarthritis Study, who had standing fixed-flexion posteroanterior knee radiographs, were recruited. Medial tibiofemoral 3-D JSW on SCT and 2-D JSW on fixed-flexion radiographs were compared with medial tibiofemoral cartilage and meniscal morphology using the Whole-Organ Magnetic Resonance Imaging Score (WORMS). Associations between the area of the articular surface with 3-D JSW <2.5 mm on SCT, radiographic minimal 2-D JSW, and the WORMS-CM and meniscal scores were assessed using Spearman's rho. For the 19 participants included (33 knees), mean ± SD age was 66.9 ± 5.4 years, body mass index was 29.5 ± 4.4 kg/m(2) , 42.1% of participants were female, and the Kellgren/Lawrence grades were 0 (21.2%), 1 (36.4%), 2 (18.2%), and 3 (24.2%). The articular surface area with 3-D JSW <2.5 mm on SCT correlated with WORMS-CM scores for the central medial tibia (rs  = 0.84, P < 0.001), central medial femur (rs  = 0.60, P < 0.007), and posterior medial meniscal tear (rs  = 0.39, P < 0.026), as did other cut points for 3-D JSW. Correlations with radiographic minimal 2-D JSW were -0.66, -0.52, and -0.40, respectively, differing from SCT only for tibial cartilage (P = 0.001). Greater surface area with a low JSW, measured by SCT, correlates more strongly with the severity of tibial cartilage lesions, while correlating with medial femoral cartilage and meniscal damage to a similar extent as radiographic minimal JSW. SCT may enable valid stratification of participants in clinical trials, through quickly and inexpensively characterizing osteoarthritis features.
Cartilage, Articular - diagnostic imaging Humans Middle Aged Knee Joint - diagnostic imaging Tibia - diagnostic imaging Male Tomography, X-Ray Computed Femur - diagnostic imaging Osteoarthritis, Knee - diagnostic imaging Posture Radiography Cartilage, Articular - pathology Magnetic Resonance Imaging Knee Joint - pathology Menisci, Tibial - pathology Osteoarthritis, Knee - pathology Female Aged Menisci, Tibial - diagnostic imaging

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