M20-M25: Other joint disorders

M23: Internal derangement of knee

The group condition referred to as 'Internal derangement of knee' or 'M23', revolves around a range of issues that disrupt the inner workings of the knee joint. This primarily includes injuries to the knee's cartilage, ligaments, and menisci that establish the joint's stability and functionality. Generally, this array of conditions can be triggered by numerous causes including traumatic injuries such as falls or accidents, overuse, natural aging, or associated degenerative conditions. Symptoms commonly comprise of pain, inflammation, instability, locking sensation, or reduced range of motion that progressively worsens with time. In essence, they hamper the musculoskeletal system of the body, influencing mobility and quality of life drastically. These conditions typically require medical diagnosis and intervention for their management, which is determined on the basis of the specific type of internal derangement, the severity of the condition, and the individual patient's physical condition and lifestyle needs.