What are the causes of joint snapping?

1 What is the reason for joint rebound?

Physiological snap is the snap of normal joint structure, which is generally thought to be caused by the pressure drop caused by the stretching and expansion of joint capsule and the sudden and violent precipitation of dissolved gas in joint synovial fluid. It is characterized by a single, crisp, non-repetitive sound, and no other discomfort. After thinking once, it takes a certain rest period (let the released gas dissolve into the joint fluid again) to ring again.

The most typical example of physiological snapping fingers is the noise made by snapping fingers. At present, there is no evidence that physiological sudden change will cause injury, and physiological sudden change does not need treatment. For example, if the joint is a machine, then the physiological click sound is the normal sound made by the machine, and it does not need to be checked and repaired.

Summary of main points: physiological snapping does not need treatment.

Pathological snapping refers to snapping caused by abnormal or damaged joint anatomical structure, which does not necessarily have accompanying symptoms. Pathological snapshots without other symptoms generally do not require intervention.

The most typical snapping sound of this kind is "hip snapping inside and outside", which is caused by abnormal friction between tendons and bony processes around the hip joint. Although it can be considered that the anatomical structure is abnormal, there is no special treatment if there is no obvious pain and limited activity. Asymptomatic pathological snapping sounds, just like the machine is not advanced enough, or aging, it can still work normally, but the noise is relatively loud. It can be checked, but it's not worth repairing.

If the pathological snapshot is accompanied by other symptoms, it usually needs treatment. For example, the snap of the hip mentioned above may seriously cause inflammation, pain and limited activity in the friction area. At this time, physical therapy, drug therapy, local closed injection and even surgical release are needed, otherwise the pain will continue to worsen and affect life.

In addition, the typical meniscus injury, in addition to knee snapping, will also cause joint pain, locking, limited movement. If left untreated, it may cause wear and tear on non-renewable articular cartilage, leading to traumatic arthritis and leaving lifelong regret. Symptomatic pathological clicking sound, like abnormal noise caused by machine failure, may accelerate machine wear and lead to machine scrapping if left untreated.

Conclusion: (1) Pathological snapping sound without other symptoms generally does not need intervention. (2) Pathological snapping usually requires treatment if accompanied by other symptoms.