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Review
. 2018 Oct;16(5):611-616.
doi: 10.1007/s11914-018-0477-1.

Mechanisms of Osteoarthritis (OA) Pain

Terence W O'Neill  1   2   3 , David T Felson  4   5   6
Affiliations
Review

Mechanisms of Osteoarthritis (OA) Pain

Terence W O'Neill et al. Curr Osteoporos Rep. 2018 Oct.

Abstract

Purpose of review: Osteoarthritis (OA) is a major cause of pain and disability worldwide. There is, however, a relatively poor correlation between the severity of OA based on plain radiograph changes and symptoms. In this review, we consider the mechanisms of pain in OA.

Recent findings: It is now widely recognised that OA is a disease of the whole joint. Data from large observational studies which have used magnetic resonance imaging (MRI) suggest that pain in OA is associated with a number of structural factors including the presence of bone marrow lesions (BMLs) and also synovitis. There is evidence also of alterations in nerve processing and that both peripheral and central nerve sensitisation may contribute to pain in OA. Identification of the causes of pain in an individual patient may be of benefit in helping to better target with appropriate therapy to help reduce their symptoms and improve function.

Keywords: Bone marrow lesions; Central sensitisation; Osteoarthritis; Pain; Peripheral sensitisation; Synovitis.

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Conflict of interest statement

Conflict of Interest

Terence W. O’Neill and David T. Felson declare no conflict of interest.

Human and Animal Rights and Informed Consent

This article does not contain any studies with human or animal subjects performed by any of the authors.

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