Radiofrequency therapy is a minimally invasive treatment method, which can select the treatment modality according to clinical needs, control the magnitude of the stimulation or destruction current emitted by the instrument, and choose different diameter, length and shape of the puncture electrode needle to form a selective and specific precise limitation of the destruction foci. This technique can eliminate or reduce pain while maintaining proprioceptive, tactile and motor functions after treatment because of the good control of the relationship between the lesion and the nerve, the temperature and the range of the lesion. The recovery after treatment is faster than surgical treatment, the efficacy is maintained for a long time and can be repeated. After continuous improvement and refinement, radiofrequency instruments are used for nerve destruction (standard destruction radiofrequency), pulsed radiofrequency for adjusting nerve conduction, bipolar radiofrequency for local linear destruction, curved electrodes for pulpal nucleus fixation and decompression, and plasma cryogenic radiofrequency and other technologies. The clinical application of radiofrequency technology in the field of pain is rapidly expanding and gradually becoming a powerful tool for the treatment of chronic pain.
Radiofrequency treatment technology has the characteristics of minimally invasive, rapid analgesia, and the incidence of complications and side effects is very low under proper operation. With the help of the electrical stimulation test and impedance monitoring system equipped in the radiofrequency instrument itself, this technology can accurately place the radiofrequency needle to the relevant nerve site, and by adjusting the size of radiofrequency output power and setting the action temperature, it can precisely control the scope of the injury foci and avoid unnecessary side injuries.
Indications for radiofrequency analgesia.
Patients with long-term chronic pain that affects normal life; patients with poor results of conservative treatment; patients without psychiatric or drug-related disorders; patients who understand the risks of radiofrequency destruction treatment and surgery; patients with successful diagnostic nerve blocks. The indications for radiofrequency treatment of pain are as follows.
1, lumbar disc herniation, cervical spondylosis, myofasciitis
2, cervical, thoracic, lumbar small joint nerve destruction, posterior spinal nerve destruction or pulse-regulated radiofrequency, treatment of intractable occipital, cervical, shoulder, back, lumbar leg pain;
3, cervical, thoracic, lumbar, sacral spinal nerve posterior root destruction or pulse radiofrequency adjustment to treat head, occipital, cervical, hand, thoracic, lower extremity intractable pain or cancer pain.
4.Radiofrequency destruction of temporal nerve, occipital nerve, intercostal nerve, ulnar nerve, radial nerve, finger nerve, femoral nerve, foramen ovale nerve, tibiofibular nerve and sciatic nerve etc. peripheral nerve to treat malignant pain in the innervation area;
5.Radiofrequency destruction of pterygopalatine ganglion to treat migraine and throbbing headache;
6.Radiofrequency thermal coagulation decompression of intervertebral discs for the treatment of discogenic low back pain, neck and shoulder pain, cervical headache, cervical dizziness and sympathetic disorders, as well as arm pain and low back and leg pain.
7.Tumor radiofrequency thermal coagulation treatment of tumor infiltrative or compressive pain.
8, myofascial contracture radiofrequency thermal coagulation release treatment myofascial pain syndrome or nerve stuck pain, including occipital, neck, arm, shoulder, back, chest, abdomen, lumbar, sacral, leg and foot pain.
9, lumbar, thoracic, cervical (stellate ganglion) sympathetic ganglion destruction, treatment of head, arm, hand, thoracoabdominal wall, perineum or lower extremity pulsating vascular pain, cyanotic ischemic pain, burning-like sympathetic pain.
Advantages of radiofrequency technology for pain treatment.
1, except for intervertebral disc surgery which requires inpatient treatment, other surgeries can be completed in the outpatient operating room;
2, the treatment time is short, about 30 minutes for a disc surgery;
3, post-operative recovery is faster than conventional surgery, cervical spondylosis radiofrequency surgery can be completed after the end of bed activities, lumbar disc radiofrequency surgery after only a few hours in bed can be out of bed;
4, the curative effect is sure, lasting; in case the effect is not satisfactory, can operate again to achieve the same treatment effect;
5.Safety of surgery, complications and risks after surgery are extremely low;
6, the cost is cheap, only about one-third of the cost of ordinary surgical procedures.
The principle of radiofrequency technology for the treatment of pain.
The principle of intervertebral disc radiofrequency ablation analgesia is to repair the broken intervertebral disc, intervertebral disc thermal coagulation curing to reduce the pressure of the intervertebral disc on the nerve and radiofrequency physical factors of anti-inflammatory and neuromodulation and other multiple roles to achieve the analgesic effect.
The radiofrequency instrument sends out high-frequency radiofrequency current, which causes the ion movement in the target tissue to generate heat and thermal coagulation to destroy the target area tissue and nerve. Highly selective destruction of nociceptive nerve fiber conduction branch, blocking pain signals to the upper nerve conduction, destruction of pain transmission pathway, so that it can not be transmitted to the brain, can not produce pain sensation and experience, so as to achieve the purpose of pain control.