Relationship of Buckling and Knee Injury to Pain Exacerbation in Knee Osteoarthritis: A Web-Based Case-Crossover Study

Isabelle Zobel   ¹ ;   Tahereh Erfani   ² ;   Kim L. Bennell   ³ , PhD ;   Joanna Makovey   ⁴ ;   Ben Metcalf   ³ ;   Jian Sheng Chen   ^{4 †} ;   Lyn March   ⁵ , PhD ;   Yuqing Zhang   ⁶ , PhD ;   Felix Eckstein   ¹ , PhD ;   David J. Hunter   ⁷ , PhD

¹ Institute of Anatomy, Paracelsus Medical University Salzburg, Salzburg, Austria

² Sydney Medical School, University of Sydney, Sydney, Australia

³ Centre for Health, Exercise and Sports Medicine, Department of Physiotherapy, University of Melbourne, Melbourne, Australia

⁴ Institute of Bone and Joint Research, Kolling Institute, University of Sydney, Sydney, NSW Australia, St Leonards, Australia

⁵ Institute of Bone and Joint Research, Kolling Institute, University of Sydney, and Rheumatology Department, Royal North Shore Hospital, Sydney, NSW Australia, Sydney, Australia

⁶ Boston University School of Medicine, Clinical Epidemiology Research and Training Unit, Boston, MA, Boston, MA, United States

⁷ Institute of Bone and Joint Research, Kolling Institute, University of Sydney, and Rheumatology Department, Royal North Shore Hospital, Sydney, NSW Australia, St Leonards, Australia

†deceased