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To explore the clinical efficacy and safety of manual therapy combined with posterior percutaneous endoscopic cervical decompression(PECD) in the treatment of intractable cervical spondylotic radiculopathy.From May 2016 to May 2018, 23 CSR patients who responded poorly to conservative treatment for at least 6 weeks underwent the combination management. Firstly, the patients received the posterior percutaneous endoscopic cervical decompression routine care for the following 4 weeks and manual therapy for another 4 weeks. A total of 23 patients were followed up, including 14 males and 9 females, the age ranged from 29 to 78 years old with an average of (50.30±12.28) years, the course of disease was 3 to 24 months with an average of (9.74±5.76) months. The lesion segment involved CAll patients successfully completed the operation and manual treatment for 4 to 8 times. Among the 29 cases, 23 patients were followed up for more than 6 months. There was no spinal cord and nerve root injury during the treatment and follow-up. Operation time was from 80 to 120 min with a median of 90 min;intraoperative blood loss was from 35 to 80 ml with a median of 50 ml. NDI, VAS of neck, shoulder and arm each period after operation were significantly lower than those before PECD(Manual therapy combined with PECD in the treatment of intractable cervical spondylotic radiculopathy can not only quickly improve the symptoms, but also alleviate the residual symptoms after PECD safely and effectively, and can not cause obvious signs of accelerated instability of cervical adjacent segments in the short term.

To analyze the relationship between position of head, cervical curvature type and associated cervical balance parameters in a neutral looking-forward posture.Cervical lateral X-rays of 60 patients with cervical spondylosis were selected from January to December 2015. There were 22 males and 38 females with an average age of (35.5±10.9) years old. The measured parameters included cervical curvature type, McGregor slope, C2 lower end plate slope, T1 slope, center of gravity to C7 sagittal vertical offset (CG-C7 SVA), and C2 to C7 sagittal vertical offset (C2-C7 SVA). The parameters were analyzed using Spearman correlation.The cervical curvature type was significantly correlated with C2 lower endplate slope, C0-C2 angle (total degree of C2 lower endplate slope plus McGregor slope), CG-C7 SVA and T1 slope (There was certain some relationship among position of head, cervical curvature type and associated cervical balance parameters in a neutral looking-forward posture. The center of gravity of the head would backwards shift following faced upward. A position of extension with posterior-shifting of the head would suggest that it may be accompanied with a relatively normal lordosis of the cervical spine. Some patients with abnormal curvature showed slightly bended head in the natural posture. Health education toward these people would be meaningful to restore the balance of their neck.

To explore the effect of articulatio atlantoepistrophica sublaxation on the pathogenesis of cervical spondylosis, and provide a thread for diagnosis and treatment of cervical spondylosis with manipulation.There were two groups in the study, which were non cervical spondylosis group and cervical spondylosis group. There were 333 patients in cervical spondylosis group, included 119 males and 214 females with the mean age of(48.11±12.21) years old. The patients were recruited from clinic service of orthopaedics in Shuguang Hospital between March 2006 and December 2008. There were 73 subjects in non cervical spondylosis group, included 18 males and 55 females with the mean of(45.99±11.47) years old. The subjects were recruited from undergraduate students, postgraduate, advanced study persons, and community personnel. The position relation of the atlanto axial joint was observed by cervical X rays with opening position, and the incidence rate of articulatio atlantoepistrophica sublaxation was compared between two groups, and their clinical characteristics were analyzed.The incidence of articulatio atlantoepistrophica sublaxation in cervical spondylosis group was 81.38%(271/333)and was more than non cervical spondylosis group(The articulatio atlantoepistrophica sublaxation may be a X ray diagnostic indication to the cervical spondylosis, which should be grouping studied in clinic. It will provide guidance for the diagnosis and treatment of cervical spondylosis.

To study clinical significance of vertebral artery magnetic resonance angiography (MRA) to vertebral artery type of cervical spondylosis' diagnosis and treatment.There were two groups in the study, which were observation group and control group. There were 53 patients in observation group,including 19 males and 34 females,with a mean age of (52.51 +/- 11.29) years. There were 30 subjects in control group,including 10 males and 20 females,with a mean age of (48.11 +/- 12.21) years. Based on the vertebral artery MRA picture,the course and caliber of vertebral artery were compared between two groups.The abnormal incidence of course and caliber of vertebral artery in observation group was higher than that of control group, which had statistic difference (P=0.000). Furthermore, the patterns of abnormal course and caliber of vertebral artery in observation group were complicated and diverse, but the regional circuity and stegnosis was the most common pattern,about 47.18%(25/53). The cause of circuity and stegnosis was vertebra Gu-Cuofeng,about 43.41% (23/53).The vertebral artery MRA provides a guidance for the diagnosis of abnormal course and caliber of vertebral artery in vertebral artery cervical spondylosis.

To investigate the effects of osthole on proliferation of neonatal rat osteoblast and the mechanism.Ten 24 hours old SD rats were executed by dislocating. The cranium of rats were removed and cut into blocks of 1 mm x 1 mm size. After digested by trypsin for 15 min, the cranium were digested by type I collagenase for one hour two times. The mixed cells were cultured in thermostat incubator with 5% CO2 under the condition of 37 degrees C. To identify the cells, ALP staining and alizarin red staining were performed after cultured 48 h and 28 d. The osteoblasts were randomly divided into five groups. Cells were treated with osthole at concentrations of 100, 50, 25, 12.5, 0 micromol/L. CCK-8 method was used to evaluate the proliferation after 24 h,48 h and 72 h. The expression of PCNA and beta-catenin protein were detected through the method of Western Blot after one week.The cells had irregular shapes and showed typical features of osteoblast. The results of ALP staining and alizarin red staining were both positive. CCK-8 detection showed that the osthole with final concentration of 100 micromol/L inhibited the proliferation of osteoblast after 24 h, while the osthole with final concentrations of 50 micromol/L and 25 micromol/L displayed the inhibition effect after 48 h. The osthole of 12.5 micromol/L had no obvious influence on the proliferation of osteoblast. The result of Western Blot showed that osthole reduced the expression of PCNA and beta-catenin protein in a dose-dependent manner.The osthole with final concentrations of 100, 50, 25 micromol/L inhibited the proliferation of osteoblast (P0.05). The osthole with final concentrations of 12.5 micromol/L had no obvious influence on the proliferation of osteoblast (P0.05). These findings demonstrate that osthole may inhibit the proliferation of osteoblast by regulating the Wnt/beta-catenin signaling in osteoblast.

To compared the activity and yield rate of osteoblast obtained by different collagenase digestion methods, to find a better way to extract osteoblast for the experimental researches of osteoporosis.Ten 24-hour-old SD rats were were euthanized. The cranium of rats were removed and cuted into blocks of 1 mm x 1 mm size. After digested by trypsin for 15 min, all the cranium were divided into two equal parts, and randomly divided into two groups which would be digested by type I collagenase and type II collagenase separately for two times. The rat cells of the two groups were cultured in thermostat incubator with 5% CO2 under the condition of 37 degrees C. The primary culture osteoblasts were counted by using a haemacytometer after digestion and 72 hours later. The second generation osteoblasts cultured 48 h were dyed by NBT/BCIP staining solution, and were detected by quantitative measurement with PNPP.The cells had irregular shapes. The results of cell counting showed that the cell number of type I group was larger than type 11 group. Alkaline phosphatase dyeing were positive. Detecting of alkaline phosphatase using the method of PNPP showed that the absorbance value in type I group were higher than type II group (P0.05).Two types of collagenase are both suitable for the in vitro culture of rat osteoblasts. The activity and yield rate of osteoblasts in type I group are higher which could provide more stable seed cells for the treatment of osteoporosis.

To review previously reported injuries cases which were associated with cervical manipulation in China, and to describe the risks and benefits of the therapy.Relevant case reports, review articles, surveys, and investigations regarding treatment of cervical spondylosis with cervical manipulation involving accidents and associated complication were retrived with a search of the literature from SinoMed, CNKI, CQVIP, and Wanfang digital databases between 1979 to March 2011. The data were extracted and statistically analyzed.Total of 150 cases of injury reported in 40 articles corresponded the inclusion criteria. Accidents occurred in 156 cases,of them,syncope was in 45 cases (28.85%), mild spinal cord injury or compression was in 34 cases (21.79%), nerve root injury was in 24 cases (15.38%), ineffective or symptom increased was in 11 cases (7.05%); cervical spine fracture was in 11 cases (7.05%), dislocation or semiluxation was in 6 cases (3.85%), soft tissue injury was in 3 cases (1.92%), serious accident was 22 cases (14.70%, including paralysis, death and cerebrovascular accident). In cases of serious accident, 12 cases (54.55%) had the other primary diseases. Types of related manipulation including rotation reduction (42.00%, 63 cases), rubbing points or muscle resulting strong stimulation (28.00%, 42 cases). 100 cases (66.67%) obtained cured or basically recovered results, 21 cases (14.00%) improved, 4 cases (2.67%) deterioration and 5 cases (3.33%) died.It is imperative for practitioners to complete the patients' management and assessment before manipulation. That the practitioners conduct a detailed physical examination and make a correct diagnosis would be a pivot method of avoiding accidents. Excluding contraindications and potential risks, standardizing evaluation criteria and practitioners' qualification, increasing safety awareness and risk assessment and strengthening the monitoring of the accidents could decrease the incidence of accidents.