Objective To investigate the clinical efficacy of percutaneous vertebroplasty (PVP)for vertebral metastases.Methods 40 cases with 46 vertebral body metastases underwent PVP under the guidance of fluoroscopy or CT.The analgesic effect,vertebral body stability and complications after operation were observed.Results The successful rate of puncture was 100%.The pain relief was demonstrated in all cases(complete relief in 30 cases,partial relief in 8 cases,mld relief in 2 cases) after operation 1 to 3 days.All involved vertebral bodies had good stability.Imaging analysis demonstrated that the metastatic area was completely well-distributed filling and reinforce by polymethymethacrylate(PMMA) in 26 vertebra of 24 cases.The other 20 vertebral of 16 cases were great part filled by PMMA.There were no severe complications both during operation and post-operation.The treating effect was satisfying in the following 1 to 3 months.Conclusion PVP is one of the efficacious way to alleviate pain of vertebral metastases,and it can reinforce the stAbility of involved vertebral body.

Objective To evaluate the correlation between impaired fasting glucose and the extent and severity of angiographic coronary artery disease( CAD ) in patients who underwent coronary angiography.Methods A total of 630 consecutivc patients who underwent coronary angiography were selected in the stndy.The extent and severity of angiographic CAD were diagnosed based on the followings:whether or not with CAD diagnosis by angiography,the number of diseased vessels,the CAD Gensini cumulative index.According to fasting plasma glucose ( FPG),all patients were divided into three group,group 1 ( FPG ＜5.6 mmol/L),group 2 ( 5.6 mmol/L ≤ FPC ＜ 6.1 mmol/L) and group 3 ( 6.1 mmol/L ≤ FPG ＜ 7.0mmol/L).The CHD risk factors and the lesion degree of coronary arteries were compared among three groups.The relation of FPG and CAD were analyzed by univariate and multivariate analyses.Results The incidence of CH and,the CAD Gensini cumulative index and the incidence of mult-vessel lesions were significantly different among the three subgroups ( all P ＜ 0.05 ).After adjusting other inffluencing factors,there were significantly positive correlation between the number of diseased vessels and the CAD Gensini cumulative index and FPG( P ＜0.05).The FPG had significant correlation with the diagnosis or not of CAD by angiography( OR =3.042,95％ CI:2.589 -6.275,P ＜0.01).Conclusions In prediabetic period,the extent and severity of angiographic coronary artery disease have significant correlations with the impaired fasting glucose,and the extent and severity can increase along with the increasing FPG.

Objective To evaluate clinical efficacy of treating femoral intertrochanteric and subtrochanteric fractures combined with femoral shaft fractures using anatomic locking plate.Methods From January 2009 to June 2011,we treated 72 cases of femoral intertrochanteric and subtrochanteric fractures combined with femoral shaft fractures using anatomic locking plate.Sixty-four cases were followed up.There were 50 males and 14 female,with an average age of 42.8 years (range,21-79).All patients suffered from closed femoral unilateral fractures.The interval between injury and surgery was 2 h-16 d (average,4.6 d).All patients were followed up at regular interval.During the follow-up period,clinical and radiographic data were recorded.The clinical efficacy was evaluated with Harris hip function score.Results The mean operative time was 65 min (range,45-120 min); the mean blood loss was 210 ml (range,50-650 ml).All patients began to walk with crutches 3-35 d after surgery.During the follow-up period,no infection,deep vein thrombosis,screwed cut-out and implant failure occurred in all patients.Coxa vara with shortening deformity was noted in 2 cases,solid bone union was found in all the cases.The mean time of fracture healing was 5.2 months (range,3.6-10.5 months).According to Harris hip score,45 cases were classified as excellent,14 as good and 5 as fair,with excellent and good rate being 92.19％ (59/64).Conclusion Anatomic locking plate fixation provides stable fixation,with a high union rate and a minimal complication rate in treatment of intertrochanteric and subtrochanteric fractures combined with femoral shaft fracture.

Objective To discuss and analyze effect of biotype common handle (short handle) prosthesis in treating aged patients with femoral intertrochanteric fracture.Methods A retrospective analysis was carried out on 321 patients,among which 280 (102 males and 178 females,at age of 72-98years,average 82.5 years) obtained follow-up.According to a new fracture classification method (Piansui Classification),the typeⅠ a fracture was found in 65 cases and type Ⅰ b in 215.Most patients were combined with medical diseases,and after related medical collaborative treatment,standard biotype common handle prosthesis (artificial bipolar femoral head) replacement was applied to all patients.Early rehabilitation exercise was performed postoperatively.Results All the 321 patients lived through perioperative period successively,with no death in hospitalization.Meanwhile,postoperative complications were all cured in hospitalization.The patients could take out-of-bed activity at 1-3 weeks after operation.All 280 patients could take care of themselves at 12-46 months (average 28 months) of follow-up.According to Harris score,the results were excellent in 129 cases,good in 121,fair in 22 and poor in eight,with excellence rate of 89.3％.Conclusion Biotype common handle artificial femoral head replacement is an effective method to allow early ambulation,reduce complications and improve quality of life in treatment of intertrochanteric fractures in the elderly.

Objective To investigate the effect of α7 nicotinic acetylcholine receptor(α7nAChR) agonist agent PNU282987 on bone cement particles stimulated secretion of inflammatory cytokines in peripheral blood monocytes and its molecular mechanism.Methods Mouse peripheral blood monocytes were isolated and the inflammatory response were induced by PMMA particles.TNF-α, IL-1β and IL-6 concentration in culture supernatant were measured by ELISA.TNF-α, IL-1β and IL-6 mRNA expression were measured by RT-PCR.p-p65, p65, p-JAK2, JAK2, p-STAT3, STAT3, and β-actin expression were detected by Western blot.NF-κB DNA binding activity were measured by ELISA.ResultsAfter stimulation of PMMA particles, TNF-α, IL-1β and IL-6 concentration in culture supernatant was significantly increased(P<0.05), TNF-α, IL-1β and IL-6 mRNA expression was significantly increased (P<0.05), p-p65, p-JAK2 and p-STAT3 expression and NF-κB DNA binding activity was also increased significantly (P<0.05).However, after PNU282987 treatment, TNF-α, IL-1β and IL-6 concentration in culture supernatant decreased(P<0.05), TNF-α, IL-1β and IL-6 mRNA expression decreased in a concentration gradient way(P<0.05), p-p65, p-JAK2 and p-STAT3expression and NF-κB p65 DNA binding activity was also decreased(P<0.05).Conclusions α7nAChR agonist PNU282987 significantly inhibites PMMA bone cement particles induced secretion of inflammatory cytokines in peripheral blood monocytes of mice.

Objective To evaluate the effects of unilateral and bilateral diffusion of cement on osteoporotic vertebral compression fractures treated with percutaneous kyphoplasty (PKP). Methods A retrospective case control study was conducted on the clinical data of 127 patients with single segment osteoporosis vertebral compression fracture (OVCF) treated by unilateral puncture PKP between July 2013 and July 2015. According to whether the diffusion of bone cement crossed the median, all cases with OVCF were divided into unilateral and bilateral diffusion groups. The unilateral diffusion group (72 cases) included 29 males and 43 females, with an average age of 69.5 ± 2.6 years (range, 63-76 years). In terms of the injured segment, there were 38 cases of L1, 20 L2, 11 L3, two L4, and one L5. In the unilateral diffusion group, the preoperative visual analog score (VAS) was (7.8 ±0.9) points, the preoperative anterior vertebral height compression ratio was (32.5 ±6. 3)％, and the preoperative Cobb's angle of the injured vertebra was (9.2±1.3)°. The bilateral diffusion group (55 cases) included 22 males and 33 females, with an average age of 71.2 ±2.9 years (range, 61-80 years). In terms of the injured segment, there were 32 cases of L1, 13 L2, six L3, three L4, and one L5. In the bilateral diffusion group, the preoperative VAS was (7.6 ±0. 9)points, the preoperative anterior vertebral height compression ratio was (34.5 ±5.8)％, and the preoperative Cobb's angle of the injured vertebra (9.8± 1.5)°. The VAS, anterior vertebral height compression ratio of the injured vertebra, Cobb's angle of the injured vertebra, and injured and non-injured vertebra refracture 1 month and 1 year after operation were recorded. Results The patients were followed up for 12-16 months (mean, 14.6 ± 0.6 months) in unilateral diffusion group and for 13- 16 months (mean, 15.2 ±0.2 months) in bilateral diffusion group. The VAS score of the unilateral diffusion group was (3.0 ±0.4) points at 1 month after the operation and (2.2±0. 4) points at 1 year after the operation, respectively. The VAS score of the bilateral diffusion group was (2.1 ±0.4) points at 1 month after the operation and (1.5 ± 0.4) points at 1 year after the operation, respectively. The VAS score decreased significantly 1 year after operation compared with that before operation (P ＜0.05), and significant difference was noted between two groups (P ＜0.05). The anterior vertebral height compression ratio of the unilateral diffusion group was (15.2±3.9)％ at 1 month after the operation and (16.3 ±3.4)％ at 1 year after the operation, respectively. The anterior vertebral height compression ratio of the bilateral diffusion group was (15.6±3.5)％ at 1 month after the operation and (16.8 ±3.9)％ at 1 year after the operation, respectively. The Cobb's angle of the injured vertebra of the unilateral diffusion group was (2.9±0.7)° at 1 month after the operation and (3.0±0.6)°at 1 year after the operation, respectively. The Cobb's angle of the injured vertebra of the bilateral diffusion group was (3.0 ± 0.7) ° at 1 month after the operation and (3.2 ± 0.7) ° at 1 year after the operation, respectively. The anterior vertebral height compression ratio and Cobb's angle of the injured vertebra decreased significantly after surgery (P ＜ 0.05), but no statistically significant differences were observed between two groups (P＞0.05). The injured vertebra refracture ratio was 6.9％ in unilateral diffusion group and 0 in bilateral diffusion group. The non-injured vertebra refracture ratio was 5.6％ in unilateral diffusion group and 5.5％ in bilateral diffusion group. No nerve root injury, cerebrospinal fluid leakage, pulmonary embolism, anaphylactic shock and postoperative infection were found in the two groups. Paravertebral bone cement leakage occurred in two cases of the unilateral diffusion group and anterior vertebral bone cement leakage occurred in one case of the bilateral diffusion group. Conclusion Compared with unilateral diffusion, bilateral diffusion of bone cement has better analgesic effect and can reduce the incidence of re fracture of injured vertebra, without increasing the risk of re-fracture of the non-injured vertebrae.