Ulnar nerve sensory branch compression

　　1, Etiology

　　Due to prolonged and repeated wrist movements, causing repeated traction and friction of the ulnar nerve.

　　2, Pathogenesis

　　The superficial branch of the ulnar nerve passes from the deep to the superficial layer between the extensor carpi radialis longus and the brachioradialis muscles. The deep nerves are relatively fixed, with more longitudinal and transverse fibers surrounding the nerves at the tendon spaces. After entering the superficial layer, the superficial branch of the ulnar nerve has a certain degree of mobility. Prolonged and repeated wrist movements can cause repeated traction and friction of the nerve, leading to injury of the superficial branch of the ulnar nerve. Local trauma can lead to tissue adhesion, which is prone to trigger this condition.

　　Pain, numbness, tingling, and hypoesthesia are symptoms of burning pain, which intensifies with wrist movement and can radiate to the upper arm and shoulder. Prompt contact pressure relief can be achieved when the ulnar nerve sensory branch compression is treated in time.

　　1, Pain, numbness, tingling, and hypoesthesia are symptoms of burning pain, which intensifies with wrist movement and can radiate to the upper arm and shoulder.

　　2, Altered sensation on the palmar side of the hand, including hypoesthesia, paresthesia, and anomalous two-point discrimination, were reported in 100% of 51 cases by Dellon. Abnormal two-point discrimination was found in 42 cases.

　　3. Tinel sign at the middle segment of the forearm, distal to the brachioradialis muscle belly, Tinel sign is positive.

　　4. Radial sensory branch stimulation test 5. Diagnostic nerve block at the junction of the brachioradialis and aponeurosis with 2% procaine 5ml injection, after 10-20 minutes, the symptoms improve, the pain decreases, and the finger strength increases. Because the superficial branch of the lateral forearm cutaneous nerve is very close to the radial nerve at the injection site, procaine can be injected first at the upper segment of the forearm, next to the basilic vein, to exclude pain caused by the superficial branch of the lateral forearm cutaneous nerve.

　　1. What foods are good for patients with radial sensory branch compression:Pay attention to a light diet, eat more fruits and vegetables, and reasonably match the diet. Do not drink alcohol, do not eat spicy and other刺激性 foods.

　　2. Sufficient rest is also very important, and the upper limb should not be suspended for a long time.Because of the repeated activity of the wrist for a long time, causing repeated traction and friction of the radial nerve should be the main cause of radial sensory branch compression.

　　3. Pay attention to keeping warm.

　　The diagnosis of radial sensory branch compression not only relies on clinical manifestations, but also requires necessary related examinations. Electrophysiological examination: in severe cases, the sensory potential cannot be recorded, but the conduction velocity is slowed down.

　　In addition to conventional treatment, attention should also be paid to a light diet, eating more fruits and vegetables, and a reasonable diet. In addition, try to stay away from spicy and刺激性 foods, and at the same time, pay attention to ensure a balanced diet.

　　I. Treatment

　　1. Conservative Treatment:Conservative treatment includes immobilization and anti-inflammatory drug therapy. For those who are not effective or have poor efficacy after conservative treatment, surgical treatment can be performed.

　　2. Surgical Treatment:Make a longitudinal incision on the lateral side of the forearm with the center of the most obvious Tinel sign, incise layer by layer, and pay attention to protect the superficial branch of the lateral forearm cutaneous nerve on the superficial fascia. Incise the deep fascia, find the superficial branch of the radial nerve between the long extensor muscle of the wrist and the brachioradialis muscle, free the nerve sufficiently, and relieve the tension on the nerve segment surrounded by scar tissue.

　　II. Prognosis

　　The prognosis is good.