What describes a crackling, crinkly, or grating feeling or sound in the joints?

The term that describes a crackling, crinkly, or grating feeling or sound in the joints is known as crepitus. This phenomenon occurs when there is friction between the articular surfaces of the joints, which can happen for various reasons, such as the presence of air bubbles in the synovial fluid or roughened cartilage surfaces. Crepitus can often be felt during movement and may accompany conditions affecting the joints, but it specifically pertains to the audible or palpable sensation rather than a general feeling or condition.

Understanding this term is essential for those working in therapeutic shoe fitting, as it can indicate underlying issues in the foot or lower extremity that may need to be addressed with proper footwear or orthotic devices to help manage joint health and mobility.