What negative effect can occur on joints due to immobilization?

When a joint is immobilized, one significant negative effect that can occur is degeneration due to the loss of normal compression. Joints rely on regular movement and mechanical loading to maintain their health and function. Movement helps to promote the synthesis and distribution of synovial fluid, which lubricates the joint surfaces and nourishes the cartilage.

When a joint is immobilized for a prolonged period, it does not experience this normal loading and unloading cycles. As a result, the articular cartilage may begin to degenerate due to a lack of nutrients and an inability to maintain its structural integrity. The absence of compressive loading can lead to cartilage thinning, decreased hydration, and changes in the biochemical composition of the cartilage. This ultimately contributes to joint stiffness, pain, and potentially osteoarthritis.

Understanding this aspect of joint health emphasizes the importance of movement and rehabilitation in maintaining joint function, especially after injuries or surgical interventions.