“…Arthroscopy allows direct visualization and subjective evaluation of synovial structures. In osteoarthritic joints, the assessment of synovial membrane shape during surgical arthroscopy showed a high correlation with their histological aspects, allowing it to be a good indicator of the ongoing inflammatory process ( Agreste et al, 2021 ). Further information, such as surface integrity, thickness and stiffness of articular cartilage, and integrity of ligaments, can also be assessed ( McIlwraith et al, 2014 ).…”