title: A commentary on modelling osteoarthritis pain in small animals.
abstract: OBJECTIVE
  To describe the currently used animal models for the study of osteoarthritis (OA) pain, with an emphasis on small animals (predominantly mice and rats).
  
  
  OBJECTIVE
  Narrative review summarizing the opportunities and limitations of the most commonly used small animal models for the study of pain and pain pathways associated with OA, and discussing currently used methods for pain assessment. Involvement of neural degeneration in OA is briefly discussed. A list of considerations when studying pain-related behaviours and pathways in animal models of OA is proposed.
  
  
  CONCLUSIONS
  Animal models offer great potential to unravel the complex pathophysiology of OA pain, its molecular and temporal regulation. They constitute a critical pathway for developing and testing disease-specific symptom-modifying therapeutic interventions. However, a number of issues remain to be resolved in order to standardize pre-clinical OA pain research and to optimize translation to clinical trials and patient therapies.
authors: Department of Medicine, Section of Rheumatology, Rush University Medical Center, Chicago, IL, USA. anne-marie_malfait@rush.edu
authors: A M
authors: AM
authors: Malfait
authors: C B
authors: CB
authors: Little
authors: J J
authors: JJ
authors: McDougall
mesh_terms: D000818:Animals; D018771:Arthralgia / Q000503:physiopathology*; D001169:Arthritis, Experimental / Q000503:physiopathology*; D004195:Disease Models, Animal; D051379:Mice; D010003:Osteoarthritis / Q000503:physiopathology*; D051381:Rats
keywords: Animal models; Osteoarthritis; Pain
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