Chronic severe pain results in a detrimental effect on the patient's quality of life. Such patients have to take a large number of medications, including opioids, often without satisfactory effect, sometimes leading to medication abuse and the pain worsening. Spinal cord stimulation (SCS) is one of the most effective technologies that, unlike other interventional pain treatment methods, achieves long-term results in patients suffering from chronic neuropathic pain. The first described mode of SCS was a conventional tonic stimulation, but now the novel modalities (high-frequency and burst), techniques (dorsal root ganglia stimulations), and technical development (wireless and implantable pulse generator-free systems) of SCS are becoming more popular. The improvement of SCS systems, their miniaturization, and the appearance of new mechanisms for anchoring electrodes results in a significant reduction in the rate of complications and revision surgeries, and the appearance of new waves of stimulation allows not only to avoid the phenomenon of addiction, but also to improve the long-term results of chronic SCS. The purpose of this review is to describe the current condition of SCS and up-to-date technical advances.

The developed software in the form of MS Excel calculators provides a particular patient with preoperative assessment of the risk for minor acute dynamic pain on the 1 postoperative day and CPS 5-7 months after surgery.

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According to WHO, about 20% of population suffers from chronic pain. First pain clinics whose purpose was to provide care to such kind of patients started to appear in 1961. There are reportedly about 15 multidisciplinary pain clinics in Russia nowadays.The development of this medical branch in Russia is restrained by several factors: the absence of legal basis for pain specialists, the lack of educational programs, clinical standards and recommendations, as well as absence of state medical insurance rates for chronic pain care.

Total hip replacement is an important orthopedic surgery allowing to increase high-activity profile and longevity of the elderly patients suffered from arthritis and proximal hip fracture. For the good outcome of the surgery we have to use enhanced recovery strategy which in turn needs performing adequate postoperative analgesia. Using painkillers only (per os, i.v., i.m., s.c.) after THR is not enough to reach this aim (well pain relief at rest and during movement) due to low analgesic potency of the non-opioid drugs and adverse reactions related to opioids, so, the regional analgesia methods are widely spread. Considered before as a gold standard epidural analgesia method is not quite suitable for the aged patients as so as the sympathetic and motor blocks hinder an enhanced recovery after THR. In recent decades the interest in peripheral regional analgesia methods has been gradually increasing. Fascia iliaca and psoas compartment blocks, local wound infiltration analgesia are getting the modern regional THR postoperative analgesia armamentarium. Each of them has some benefits and pitfalls and only face-to-face comparisons within the scope of clinical trials will give us the basic for the constituting the local and national post-THR analgesia guidelines.