ObjectiveTo investigate the mood states, cognitive performance and the factors related to cognitive function of patients with complete spinal cord injury. MethodsA total of 60 male patients with complete spinal cord injury (SCI) admitted to Beijing Bo'ai Hospital from November, 2020 to March, 2022 were selected as SCI group, and 30 healthy males were selected as the control group. They were assessed with Montreal Cognitive Assessment Beijing Version (MoCA), Digital Span Test (DST) of Wechsler Memory Scale, Symbol Digit Modalities Test-Oral Version (SDMT), Rey-Osterrieth Complex Figure Test-30 min recall (CFT), Stroop Color-Word Test Chinese Version (CWT), Hamilton Anxiety Scale (HAMA) and Hamilton Depression Scale (HAMD). ResultsCompared with the control group, the SDMT and CFT scores were significantly lower (t > 3.052，P < 0.01); the reflect and square root transformation of MoCA score, the square root transformation of Stroop interference effects time consuming, HAMA score and HAMD score were higher (|t| > 2.542, |Z| > 7.676, P < 0.05) in SCI group. Multiple linear regression analysis indicated that age, education level, HAMD score and sleep disorder were significantly correlated with the scores of cognitive function in SCI group. ConclusionThere are more intensive anxiety and depression in patients with complete SCI. The patients with complete SCI present cognitive impairment, especially in information processing speed, visuospatial ability and visual memory, and executive function. Age, education level, depression and sleep disorder are the related factors of cognitive impairment in patients with complete SCI.

Osteoporotic vertebral compression fracture (OVCF) can lead to lower back pain and may be even accompanied by scoliosis, neurological dysfunction and other complications, which will affect the daily activities and life quality of patients. Vertebral augmentation is an effective treatment method for OVCF, but it cannot correct unbalance of bone metabolism or improve the osteoporotic status, causing complications like lower back pain, limited spinal activities and vertebral refracture. The post-operative systematic and standardized rehabilitation treatments can improve curative effect and therapeutic efficacy of anti-osteoporosis, reduce risk of vertebral refracture, increase patient compliance and improve quality of life. Since there still lack relevant clinical treatment guidelines for postoperative rehabilitation treatments following vertebral augmentation for OVCF, the current treatments are varied with uneven therapeutic effect. In order to standardize the postoperative rehabilitation treatment, the Spine Trauma Group of the Orthopedic Branch of Chinese Medical Doctor Association organized relevant experts to refer to relevant literature and develop the "Guideline for postoperative rehabilitation treatment following vertebral augmentation for osteoporotic vertebral compression fracture (2022 version)" based on the clinical guidelines published by the American Academy of Orthopedic Surgeons (AAOS) as well as on the principles of scientificity, practicality and advancement. The guideline provided evidence-based recommendations on 10 important issues related to postoperative rehabilitation treatments of OVCF.

Objective:To investigate the significance and mechanism of ten-eleven translocation (Tet1) against Mycobacterium marinum ( Mm) infection in mice. Methods:SPF wild-type C57BL/6 and Tet1-knockout (Tet1KO) mice were injected intravenously with Mm. All mice were monitored and the abscesses formed in tail were observed and quantified. Pathological changes in mouse tail tissues were observed using hematoxylin and eosin (HE) staining and transmission electron microscopy and the differences between the two groups were analyzed. Immunohistochemistry staining was used to detect the expression and distribution of TNF-α and TGF-β in mouse tail tissues. Moreover, mouse tail tissues were cultured on 7H10 plates for bacterial counting. The expression of NF-κBp65 and TGF-β was detected by Western blot. Results:Obvious lesions including abscesses and ulcers were formed in the Mm-infected C57BL/6, but only scattered small abscesses were observed in Mm-infected Tet1KO mice. During Mm infection, the bacterial load was gradually increased in C57BL/6 mice, but decreased in Tet1KO mice. Histopathological examination showed that obvious inflammatory cell infiltration and typical granulomatous lesions were found in Mm-infected C57BL/6 mice, while no significant inflammatory cell infiltration was detected in Mm-infected Tet1KO mice. Immunohistochemistry staining demonstrated that the expression of TNF-α and TGF-β was lower in Mm-infected Tet1KO mice than in Mm-infected C57BL/6 mice. Moreover, the expression of phosphorylated NF-κBp65 and TGF-β was significantly reduced in Mm-infected Tet1KO mice as compared with that in Mm-infected C57BL/6 mice. Conclusions:Deletion of Tet1 could alleviate the inflammatory damage mediated by Mm and enhance the host immune response to bacteria.

Spinal cord injury is a catastrophic injury causing lifelong severe disabilities, and poses a great burden to the individuals, families and society. In order to promote the standardization in treatment of traumatic spinal cord injury, the consensus on the evaluation, treatment and rehabilitation of traumatic spinal cord injury was suggested by experts, who came from authoritative multicenter in China. The expert consensus, which formed a standardization process from the first aid clinical treatment to rehabilitation of spinal cord injury, shall give a better practical guide for clinic and rehabilitation physicians.

The measurement of intramedullary pressure is particularly important in the research of spinal cord injury. This article ana-lyzed the influence factors and the measurement methods of intramedullary pressure. The influence factors included edema, vascular regula-tion and bleeding, spinal dural, pia mater spinalis, cerebrospinal fluid, canalis vertebralis and body position, etc. The measurement methods included direct measurement methods, as the sensor placed in the parenchyma of spinal cord, intradural extramedullary or lumbar catheter, and measuring in vitro, and indirect measurement methods, as computer modeling and intraocular pressure measuring.

With the development of science and technology, and the emergence of artificial intelligence, wearable technology is becom-ing a hot topic in the field of rehabilitation medicine. Wearable technology is characterized by miniaturization, intelligency and convenience, and has been widely researched and applied in many fields, such as neurological rehabilitation, orthopaedic rehabilitation, spinal cord injury rehabilitation and rehabilitation for senile degenerative diseases. The further research may focus on the reliability of signals under dynamic monitoring, the comfortable feeling during long-term use of wearable devices, the data security based on personal privacy, and so on.

Two­photon microscopy is a new technique which combines laser scanning con-focal microscopy and two-photon excitation technique. Two-photon fluorescence microscopy has the advantages of little light damage, small bleaching area, strong penetrability, high resolution, high fluorescence collection efficiency, and high image contrast. It is suitable for dark field imaging and multi-labeled compound measurement, and has been widely used in small animals in vivo optical imaging, such as research for tumour, gene therapy, stem cells, drug development, spinal cord injury, etc.

Objective To survey the attitudes and acceptance level of upper limb function reconstruction in patients with cervical spinal cord injury and analyze the related factors. Methods From October, 2013 to June, 2014, a total of 104 patients with cervical spinal cord injury were surveyed with self-designed questionnaire. Results There were 81 valid questionnaires, in which 3 patients (3.7%) heard of upper-extremity reconstructive surgery. The patients longed for upper limb function improvement most. After they had a understanding of the surgery, their willingness improved (P<0.01). No significant difference was found in the satisfaction degree and operation willingness between different hand function groups (P>0.05). The patients focused on the operation cost, the operation risk, recovery time after operation and the satisfaction of assistive devices, however, they were not correlated with the willingness of upper limb function reconstruction (P>0.05). Conclusion There is a clear gap between strong desire for functional improvement of upper limb and surgery awareness. It is important to communicate upper limb among patients with cervical spinal cord injury.

MicroRNAs are short non-coding RNAs that regulate and control the translation of target genes, and play an important role in gene expression involved in the development of spinal cord and spinal cord injury, which constitute novel targets for therapeutic intervention to promote repair and regeneration of the spinal cord, also they are the potential biomarkers of spinal cord injury. This article reviewed the mechanism of microRNAs and listed several microRNAs in spinal cord injury area.

Tethered cord syndrome (TCS) is a progressive neurodevelopmental disorder. The TCS model was established mainly using physical and chemical Methods and surgery, but remained problems in failing to fully reflect the progressive course of the human TCS. In the future, it may select a single etiological factor to analyze, and gradually add other factors until we have deeper understanding of this disease.