Stefanik, J, Guermazi, A, Roemer, F, Peat, GM ORCID: 0000-0002-9008-0184, Niu, J, Segal, N, Lewis, C, Nevitt, M and Felson, D (2016) Changes in patellofemoral and tibiofemoral joint cartilage damage and bone marrow lesions over 7 years: the multicentre osteoarthritis study. Osteoarthritis and Cartilage, 24 (7). pp. 1160-1166. ISSN 1063-4584

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Abstract

Objectives
To investigate changes in cartilage damage and bone marrow lesions (BMLs) on MRI in the patellofemoral and tibiofemoral joints (TFJs) over 7 years.

Methods
The Multicenter Osteoarthritis (MOST) Study is a cohort study of persons aged 50–79 years at baseline with or at high risk for knee osteoarthritis (OA). Knees were eligible for the current study if they had knee MRI (1.0T) assessed for cartilage damage and BMLs at the baseline and 84-month visits. Knees were categorized as having MRI-detected structural damage (cartilage and BMLs) isolated to the patellofemoral joint (PFJ), isolated to the TFJ, mixed or no damage at baseline and 84-months. We determined the changes in PFJ and TFJ structural damage over 7 years and used logistic regression to assess the relation of baseline compartment distribution to incident isolated PFJ, isolated TFJ and mixed damage.

Results
Among 339 knees that had full-thickness cartilage loss isolated to the PFJ or TFJ at baseline, only 68 (20.1%) developed full-thickness cartilage loss in the other compartment while 271 (79.9%) continued to only have the initial compartment affected. Compared to knees without full-thickness cartilage damage (n = 582), those with isolated TFJ and PFJ full-thickness cartilage damage had 2.7 (1.5, 4.9) and 5.8 (3.6, 9.6) times the odds of incident mixed full-thickness cartilage damage, respectively. Similar results were seen when using other definitions of MRI-defined structural damage.

Conclusions
Most knees with structural damage at baseline do not develop it in the other compartment. Knees that develop mixed structural damage are more likely to start with it isolated to the PFJ.

Item Type: Article
Additional Information: This is the accepted author manuscript (AAM). The final published version (version of record) is available online via Elsevier at https://doi.org/10.1016/j.joca.2016.01.981 Please refer to any applicable terms of use of the publisher.
Uncontrolled Keywords: knee osteoarthritis; MRI; pain
Subjects: R Medicine > RA Public aspects of medicine
Divisions: Faculty of Medicine and Health Sciences > Primary Care Health Sciences
Depositing User: Symplectic
Date Deposited: 03 Feb 2016 10:02
Last Modified: 21 Aug 2018 15:11
URI: http://eprints.keele.ac.uk/id/eprint/1433

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