The complexity of the spine makes an entire understanding of its mechanical function difficult, particularly since the stresses and strains can't be measured directly with non-invasive techniques. To explain the behaviour of the spine and its various components, biomechanical models are used where in-vivo studies are impractical. All biomechanical models of the spine share one common feature; each must contains an anatomical model of the spine and a way of distributing force to the components during this anatomical model. There's little consistency between previous anatomical models with authors incorporating different numbers of muscles, using different measures of muscle area (physiological cross-sectional area (PCSA) or cross-sectional area (CSA)), grouping muscles differently with reference to activation and using values between 30 N cm-2 and 100 N cm-2 for the utmost muscle force intensity. Most of those differences stem from a scarcity of detailed anatomical information for the muscles of the lumbar spine.
Spinal rope injury (SCI) is a genuine ailment, which frequently brings about extreme dismalness and lasting handicap. It happens when the axons of nerves going through the spinal rope are disturbed, prompting loss of engine and tactile capacity underneath the degree of injury. Injury is generally the consequence of a significant injury, and essential injury is frequently irreversible. These wounds are especially exorbitant and crippling as they excessively influence patients under 30-years of age, lead to huge useful weakness for the rest of the person's life, and put the person in danger for various complexities prompting expanded dismalness and mortality. SCI is assessed to have a lifetime financial effect of 2 to 4 billion dollars. SCI results from introductory affront, for example, mechanical powers to it, which is known as the essential injury.
The Guillain-Barre Syndrome (GBS) is an exceptional postoperative complication with only 37 reported cases; 20 occurred after general surgery, 4 after cranial surgery and 13 after spinal surgery. The diagnosis is challenging if the syndrome occurs after spinal and particularly after lumbar surgery.
Lower back pain is one of the health problems that most afflict adults worldwide. It is estimated between 40-70% of adult population seek medical help at some point in their lives. Because the existence of a large number of patients who do not respond to conventional pharmacological treatment, percutaneous procedures with intradiscal ozone are beginning to be used, obtaining good results.
The aim of recalibration of the lumbar canal using the Senegas technique guarantees stability and preserves movement, with a considerable reduction in surgical risk and faster incorporation into daily life. Objective: To evaluate the surgical results of recalibration of the lumbar canal using the modified Senegas technique. Materials and Methods: An ambispective and cross-sectional descriptive observational study was carried out at the Institute of Neurology and Neurosurgery between January 2011 and December 2019 that were evaluated 6 and 12 months after having been operated. Results: 70.7% of the patients manifested chronic low back pain, and dysesthesia was found in 39.8%. There were 15.8% complications. The clinical evolution according to the Lumbar and Lower Limb Verbal Numerical Scale and the functional one according to the Oswestry Disability Index was better at 6 and 12 months after the intervention compared to the preoperative period. The result was considered good at 82.7% and 89.4%, respectively, at 6 and 12 months. Conclusions: The clinical and functional evolution of the operated patients is significantly better at 6 and 12 months concerning the preoperative one. At both 6 and 12 months, surgical results are good in the vast majority of patients.
