Knee osteoarthritis

This Editorial introduces another of Journal of Physiotherapy's article collections. These are collections of papers in a specific field of research, published in the Journal of Physiotherapy within the past decade and curated to alert readers to important findings and research trends in that field, while highlighting avenues for further research. This latest article collection examines physiotherapy research into knee osteoarthritis (OA). ‘Knee’ and ‘osteoarthritis’ were two of the top 20 search terms in an analysis of the searches conducted of the Physiotherapy Evidence Database (PEDro).