How to Distinguish Non-Inflammatory from Inflammatory Pain in RA?

Curr Rheumatol Rep. 2024 Dec;26(12):403-413. doi: 10.1007/s11926-024-01159-4. Epub 2024 Aug 9.

Abstract

Purpose of the review: Managing non-inflammatory pain in rheumatoid arthritis (RA) can be a huge burden for the rheumatologist. Pain that persists despite optimal RA treatment is extremely challenging for patient and physician alike. Here, we outline the latest research relevant to distinguishing non-inflammatory from inflammatory RA pain and review the current understanding of its neurobiology and management.

Recent findings: Nociplastic pain is a recently introduced term by the international pain community. Its definition encompasses the non-inflammatory pain of RA and describes pain that is not driven by inflamed joints or compromised nerves, but that is instead driven by a functional reorganisation of the central nervous system (CNS). Insights from all areas of nociplastic pain research, including fibromyalgia, support a personalised pain management approach for non-inflammatory pain of RA, with evidence-based guidelines favouring use of non-pharmacological interventions. Future developments include novel CNS targeting pharmacotherapeutic approaches to treat nociplastic pain.

Keywords: Chronic pain; Inflammatory; Nociplastic; Rheumatoid arthritis.

Publication types

  • Review

MeSH terms

  • Arthritis, Rheumatoid* / complications
  • Arthritis, Rheumatoid* / diagnosis
  • Humans
  • Inflammation
  • Pain Management* / methods