What is the cause of foot screw bone swelling

The screw bone is an important part of the foot, and its normality directly affects a person's normal walking function. Many people have encountered the problem of redness and swelling of the screw bone on their feet. This problem will not only cause a certain degree of soreness and pain to the patient, but also affect people's normal life. So, why does the screw bone in the foot swell? Here are the three main reasons for swelling of the screw bone in the foot!

1. Degenerative osteoarthritis or heel bone spurs

Hyperplastic osteoarthritis refers to a chronic joint disease caused by joint degeneration and destruction of articular cartilage. Also known as degenerative arthritis, osteoarthritis and hypertrophic arthritis.

The basic cause of primary osteoarthritis is the gradual aging and degenerative changes of the human body after maturity, which manifests itself in bones and joints. Secondary osteoarthritis refers to cartilage destruction or changes in joint structure due to some known cause, such as trauma, surgery or other obvious factors. Due to factors such as friction or pressure imbalance on the joint surface, the joint surface undergoes degenerative changes.

2. Synovitis

Synovitis is a multiple disease, and its main site of occurrence is the knee joint. The knee joint is the joint with the most synovium, the largest articular surface and the most complex structure in the human body. Because the synovium of the knee joint is extensive and located in the shallower part of the limb surface, it has more chances of injury and infection. Knee synovitis is mainly a group of syndromes caused by knee sprain and multiple intra-articular injuries.

For patients with excessive or recurrent knee joint effusion, a joint effusion examination can be performed, which can reflect the nature and severity of the synovitis. Therefore, joint puncture and synovial fluid examination are of great reference value for the diagnosis and differential diagnosis of knee synovitis. Traumatic synovitis of the knee joint is easily misdiagnosed as "benign joint pain" and given simple symptomatic treatment, which has poor results and often leaves sequelae. Because the degree of synovial lesions and changes in joint fluid exudate are positively correlated with increased intra-articular pressure and decreased oxygen partial pressure, increasing the joint cavity oxygen partial pressure and lowering the joint cavity pressure can promote inflammation absorption and synovial repair.

3. Calcaneus fat pad inflammation or functional disorder of the ankle joint.

Fat pad inflammation is a manifestation of inflammatory irritation in and around the adipose tissue due to stress on the plantar tendon after osteoporosis in the elderly, secondary bone hyperplasia, heel spurs or degeneration of the fat pad itself. It is a sterile inflammation in nature.