suppurative dactylitis
Introduction
Introduction to suppurative finger inflammation Suppurative finger inflammation is a subcutaneous purulent infection that occurs at the end of the finger. Because of infection, the entire finger pad is highly swollen and resembles a snake head, hence the name "snake head" or "skull". Because the subcutaneous tissue of the fingertips is very tightly arranged, the tissue is very swollen at the beginning of the infection, and the intraluminal tension is obviously increased, the pain is severe, and the blood supply to the distal phalanx is hindered. The local symptoms are severe in the early stage of the disease; it is difficult to detect the fluctuation of the infected area after the abscess is formed, which is an important feature of the disease. basic knowledge The proportion of illness: 0.04% Susceptible people: no specific population Mode of infection: non-infectious Complications: osteomyelitis septic arthritis tenosynovitis
Cause
Causes of suppurative finger inflammation
(1) Causes of the disease
Suppurative finger inflammation is mostly caused by stab wounds of fingertips, and can also be secondary to paronychia. The main pathogen is Staphylococcus aureus.
(two) pathogenesis
There are many longitudinal fiber cables between the skin on the palm of the finger and the periosteum of the phalanx. The soft tissue is divided into a number of closed small cavities. The cavity contains adipose tissue and a rich network of nerve endings. When an infection occurs, the pus does not easily spread around. Therefore, the swelling is not significant, but the pressure in the abscess is very high, which can not only cause very severe pain, but also oppress the nourishing blood vessels of the distal phalanx, causing ischemia and necrosis of the phalanx. In addition, the pus directly invades the phalanx and can also cause osteomyelitis.
Prevention
Suppurative finger inflammation prevention
Pay attention to labor protection and actively treat finger skin trauma.
Complication
Suppurative cephalitis complications Complications osteomyelitis septic arthritis tenosynovitis
In the abscess stage due to the role of fibrous septum, the infection can directly develop into the deep layer, and it is easy to form the distal phalange osteomyelitis, septic arthritis or tenosynovitis. At this time, the skin is still difficult to get better after the skin collapses.
Symptom
Suppurative finger inflammation symptoms Common symptoms Abscess body discomfort Aversion cold fever nail clip injury
At the beginning of the disease, the fingers are slightly swollen, red, stinging, and then the swelling of the fingers is aggravated, the skin tension is obviously enlarged, the patient often feels severe pain, it is difficult to sleep, and there are symptoms such as aversion to cold, general malaise, abscess, microvessels. Internal thrombosis, local tissue tends to be necrotic, the entire finger can be highly swollen, shaped like a snake head, after the formation of abscess, the finger pain is reduced, the skin color changes from red to white, but it is difficult to detect the sense of wave, skin ulceration, pus Gradually healed.
Examine
Examination of suppurative finger inflammation
Blood examination: the total number of white blood cells is often >4×109/L, and neutrophils are greater than 0.6.
Diagnosis
Diagnosis and differentiation of suppurative finger inflammation
Diagnostic criteria
History
Have a history of paronychia or finger trauma.
2. Clinical manifestations
Finger red, swollen, severe pain and fever.
3. Laboratory examination.
