BACKGROUND: Kyphosis in ankylosing spondylitis is sagittal or coronal imbalance, but there is a lack of study on its orthopedic biomechanics, and biomechanics is of great significance for the reconstruction of spinal stability after orthopedic surgery.OBJECTIVE: To establish a three-dimensional (3D) finite element model of kyphosis in ankylosing spondylitis treated by osteotomy on software, and to analyze its biomechanical properties, thus providing theoretical basis for clinical practice.METHODS: A 3D finite element model of kyphosis in ankylosing spondylitis was established based on CT data, and the predetermined angle of the osteotomy at L2 was measured. Afterwards, vertebral column decancellation and vertebral column resection were stimulated, and then the biomechanical parameters were analyzed. RESULTS AND CONCLUSION: (1) The 3D finite element models of kyphosis in ankylosing spondylitis treated by vertebral column decancellation or vertebral column resection at L3 were established successfully. (2) The stress on the screw and contact at each segment in the vertebral column decancellation group was significantly higher than that in the vertebral column resection group except for S1. (3) To conclude, both two methods can reconstruct the sagittal balance,but vertebral column decancellation exhibits significantly higher stress on the screw. Indeed, the incidence of internal fixation failure and complications in vertebral column decancellation is higher than that in vertebral column resection at the same segment and angle.

BACKGROUND:Ankle fractures combined with deltoid ligament injury are not uncommon in clinical practice, prone to misdiagnosis and missed diagnosis, resulting in ankle instability, chronic pain and traumatic arthritis. In recent years, because of the research and development of anatomy and biomechanical characteristics of deltoid ligament, the treatment and surgical methods of ankle fracture combined with deltoid ligament injury have progress and development, but it remains controversial. OBJECTIVE:To evaluate the clinical effect of suture anchor repair in the treatment of ankle fracture combined with deltoid ligament injury. METHODS: Twenty-seven patients with ankle fracture combined with deltoid ligament injury were selected between January 2010 and January 2013. The lateral maleolus and posterior maleolus fracture patients were treated with open reduction and internal fixation, and al the deltoid ligament injury patients were treated with anchor repair. The tibiofibular syndesmosis isolated patients received internal fixation with a cancelous bone screw. RESULTS AND CONCLUSION:Al 27 patients were folowed-up for 11-35 months, averagely 23 months. The evaluation according to the American Orthopaedic Foot and Ankle Society score system showed that the excelent and good rate was 74.1%. The results indicate that anchor could perfectly restore the stability of ankle joint.

No abstract available.
Asian Continental Ancestry Group* ; Humans ; Leprosy*

Objective To investigate the indication,safety and the validity of intervertebral discectomy via posterior approach.Methods There were 8 cases in our group.All received posterolateral intervertebral discectomy and nerve root decompression via posterior approach.The average follow-up period was 5.2 years.The improvement on pain and neurological signs were evaluated.Results Pain disappeared completely in 5 patients and significantly alleviated in the other 3.As to muscle strength and tendon jerk,we observed significant improvement in 6 patients and improvement in the other 2 patients.7 patients got back to their original work and 1 patient shifted to an easy job.No patient had complication.Conclusions Nucleus pulposus removal via posterior approach was a secure and effective one for posterolateral cervical intervertebral disc herniation.

Objective To observe the effects of different doses of Yinxingdamo injection on changes of nerve-specific enolase (NSE) of patients with medium-sized brain injury and discusse the mechanism of Yinxingdamo injection in the treatment of brain injury. Methods The contents of serum NSE in 33 cases of craniocerebral injury were dectected by ELISA test and the results were analyzed. Results NSE levels in patients with brain injury were significantly higher than normal people (p ＜0.05). Yinxingdamo injection can reduce the content of NSE for brain injury patients. This reduction related with the dosage of the medicine, showing the higher the dosage is used, the greater reduction may be.Conclusion Yinxingdamo injection can reduce NSE in serum of patients with brain injury, and this may be the mechanism of Yinxingdamo injection in treating craniocerebral injury.

Objective To evaluate the Cys-C、β~2-MG、RBP as marker三of early diagnosis in patients with diabetic nephropathy Ⅱ(DN).Methods ninety patients with DN were divided into three groups according to urinary albumin excretion rate (UAER),that is normal,micro and mass group.Serum Cys-C、β~2-MG、RBP、BUN,Crea were detected and parallelly contrasted in the three groups and control group with thirty healthy people.Results compared with the control group,the serum Cys-C、β~2-MG、RBP of micro and mass group both significantly increased and the normal group had no significant difference.The positive rate of Cys-C、β~2-MG,RBP in mass group was respectively 100%、100%、96.1%;the positive rate in micro group as follows:Cys C (92.3%)＞B2-MG(84.6%)＞RBP(66.6%)＞Crea(46.1%)＞BUN(28.2%).Conclusion serum Cys-C、β~2-MG、RBP have high positive rates in patients with diabetic nephropathy Ⅱ(DN).They can be used as early diagnostic marker of diabetic nephropathy Ⅱespecially Cys-C.

ObjectiveTo report a series of female patients with bladder cancer who underwent gynecologic-tract sparing radical cystectomy with long term follow-up.MethodsFifty-five female patients between the ages of 25 and 82 years who underwent gynecologic-tract sparing radical cystectomy between 1990 and 2010 were reviewed retrospectively.Pathologic characteristics and survival ( overall and cancerspecific) were reported.Survival was estimated using Kaplan-Meier methods,and Cox proportional hazards regression analyses were performed to determine factors associated with mortality.ResultsFive patients were lost in follow up.Fifty-five women with a mean follow-up of 55.2 months were analyzed.The 3,5 and 10-year cancer specific survival (CSS) was 65％,61％ and 61％,respectively,and the corresponding overall survival (OS) was 61％,54％ and 42％,respectively.For patients with organ confined disease ( ≤ pT2N0M0) the 5-year CSS and OS was 84％ and 72％,while for those with non organ confined disease ( ≥pT3N0M0) the 5-year CSS and OS reduced to 29％ and 29％.Pathologic lymph node status (HR =3.877,P =0.019) and pathologic staging ( HR =3.992,P =0.011 ) were the only clinical or pathologic characteristics significantly associated with survival.ConclusionsFor patients with pathologically organ-confined bladder cancer ( ≤ pT2 N0 M0 ),gynecologic-tract sparing radical cystectomy is an oncologically safe treatment modality,while for those with ≥ pT3N0M0 or positive pelvic lymph nodes,gynecologic-traet sparing radical cystectomy may need large scale randomized control trials to justify its validity,pathological stage and lymph node status are the most important key points when choosing appropriate patients.

Anti-neoplasic angiogenesis therapy is a rising new treatment model for cancer in recent years, and it has been established the status of first-line treatment in the relevant anti-neoplasic fields. With the extensive clinical applications, the anti-neoplasic angiogenesis therapy have gradually showed some of its limitations and shortcomings,such as drug resistance, uncertain therapeutic window, lack of effective biomarkers, et al. However, we can overcome these disadvantages through combined chemotherapy, reasonable chemotherapy protocols and anti-VM therapy.

Objective To compare the difference between the short stature and normal boys testicular vol-ume,and to investigate the relationship between the short stature and testicular development.Methods Testicular testing for 70 cases of short stature by color doppler ultrasound from 4 to 12 years old,calculation of testicular volume average(MVT),references for the boy normal testicular volume provided by Peking union medical college hospital and the Beijing children's hospital,compared the above two groups.The short stature's height,weight,body mass index (BMI)for correlation analysis.Results The MVT of the short stature group were lower than normal,compared with the normal group differences statistically significant(P<0.05);The weight,BMI,MVT of idiopathic short stature had a tendency to decrease compared with complete lack of growth hormone deficiency from 10 to 12 years old;The short stature's height had low relativity with MVT(r=0.393,P=0.01 ),the weight had middle relativity with MVT(r=0.508, P<0.01),and the BMI had low relativity with MVT(r=0.352,P<0.01).Conclusion The testicular development of short stature is relatively slow,which should make early intervention for the gonad development of short stature.

The N-terminal tail of histone exposed to the surface of nucleosomes could be covalcnfly modificated. Chromatin condensation is controlled by modification of the amino acid residues in the histone effects functionally on the nuclear processes and DNA expression. A large number of study show that improper change of the state of methylations in lysine and arginine side chains of histone can induce hematological malignant. Modulation of histone methylation can inhibit cell cycle and induce apoptosis in hematological malignant ceils.