A degenerative medial meniscus retains some protective effect against osteoarthritis-induced subchondral bone changes

Mitton G, Engelke K, Uk S, Laredo JD, Chappard C (2020)


Publication Type: Journal article

Publication year: 2020

Journal

Book Volume: 12

Article Number: 100271

DOI: 10.1016/j.bonr.2020.100271

Abstract

Objectives: The objective was to estimate the impact of the meniscus on cartilage and subchondral bone in knee osteoarthritis (OA). Methods: In a sample of 46 knee specimens (26 females), 13 (7 females) were classified as OA according to the Kellgren-Lawrence classification. Outerbridge and meniscal grading were performed. Using micro-computed tomography images, we analyzed the cartilage thickness, subchondral plate thickness and micro-architecture of trabecular subchondral bone at different depths and in two different locations of the medial tibial plateau: one peripheral (PER) covered by the meniscus and one central (CENT) uncovered by the meniscus. Results: Uncoverage by the meniscus was associated with bone sclerosis, defined as higher bone volume to total volume (BV/TV), higher trabecular number, thicker trabeculae with lower spacing, and anisotropy and a more plate-like architecture. The protective effect of meniscal coverage was observed in the uppermost 5 to 6 mm of the subchondral bone. As compared with normal knees, knees with OA showed significantly higher bone sclerosis (P <0.05–0.001) at the PER location, but only BV/TV (P=0.03) and trabecular number (P=0.02) differed between OA and non-OA knees at the CENT location uncovered by meniscus. Conclusions: OA results showed a partial dedifferentiation of the subchondral bone micro-architecture between PER and CENT locations probably due to menisci that still retain some of their protective effects on the subchondral bone.

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How to cite

APA:

Mitton, G., Engelke, K., Uk, S., Laredo, J.D., & Chappard, C. (2020). A degenerative medial meniscus retains some protective effect against osteoarthritis-induced subchondral bone changes. Bone Reports, 12. https://doi.org/10.1016/j.bonr.2020.100271

MLA:

Mitton, G., et al. "A degenerative medial meniscus retains some protective effect against osteoarthritis-induced subchondral bone changes." Bone Reports 12 (2020).

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