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The relationship of three-dimensional joint space width on weight-bearing CT with pain and physical function
Journal article   Open access   Peer reviewed

The relationship of three-dimensional joint space width on weight-bearing CT with pain and physical function

Mayank D. Kothari, Kaitlin G. Rabe, Donald D. Anderson, Michael C. Nevitt, John A. Lynch, Hayden Franz, Neil A. Segal and Multicenter Osteoarthritis Study Group
Journal of orthopaedic research, Vol.38(6), pp.1333-1339
06/01/2020
DOI: 10.1002/jor.24566
PMCID: PMC8016550
PMID: 31840831
url
https://doi.org/10.1002/jor.24566View
Published (Version of record) Open Access

Abstract

Limitations of plain radiographs may contribute to poor sensitivity in the detection of knee osteoarthritis and poor correlation with pain and physical function. Three-dimensional (3D) joint space width (JSW), measured from weight-bearing computed tomography (CT) images, may yield a more accurate correlation with patients' symptoms. We assessed the cross-sectional association between 3D JSW and self-reported pain and physical function. Five hundred twenty eight knees (57% women) were analyzed from Multicenter Osteoarthritis Study participants. An upright weight-bearing CT scanner was used to acquire bilateral, weight-bearing, fixed-flexion images of the knees. A 3D dataset was reconstructed from cone beam projections and JSW was calculated across the joint surface. The percentages of the apposed medial tibiofemoral joint surface with JSW less than 2.0 and 2.5 mm, respectively, were calculated. Pain and physical function were measured using Western Ontario and McMaster Universities Osteoarthritis Index. Participants who reported greater pain severity tended to have a greater joint area with JSW less than 2.0 mm (P = .07 for the highest vs the lowest tertile). Participants who reported greater functional limitations had a greater joint area with JSW less than 2.0 mm (P = .02 for the highest vs the lowest tertile). There appears to be an association between the medial tibiofemoral area with JSW less than 2.0 mm and pain and physical function.
Orthopedics Life Sciences & Biomedicine Science & Technology

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