1.Finite element analysis of effects of sagittal cervical manipulation on intervertebral disc and facet joints
Yuanbiao WEI ; Zhan LIN ; Yanmei CHEN ; Tenghui YANG ; Xiao ZHAO ; Yangsheng CHEN ; Yanhui ZHOU ; Minchao YANG ; Feiqi HUANG
Chinese Journal of Tissue Engineering Research 2024;28(6):827-832
BACKGROUND:Among the pathogenic factors of cervical spondylosis,herniation of the intervertebral disc,dislocation of the facet joint and the stenosis of the intervertebral foramen are important factors leading to symptoms in patients.Moreover,inappropriate manipulation may aggravate the possibility of cervical disc rupture,leading to exacerbation of symptoms in patients. OBJECTIVE:To compare the effect between sagittal cervical manipulation and traditional cervical rotation manipulation on the area of the intervertebral disc,facet joint and intervertebral foramen at the operative segment by the finite element analysis. METHODS:The neck CT data of a male volunteer with a normal neck were selected and imported into Mimics 17.0 three-dimensional reconstruction software.Geo-magic Studio 12.0,Solidworks 2017 and Ansys Workbench 17.0 software were used for the construction of the finite element model of cervical vertebrae(C3-6)including intervertebral disc and articular cartilage.The lower end plate of the C5 vertebral body was fixed.A uniformly distributed vertical downward 50 N load was applied on the upper surface of the upper vertebral body(C3).The stress,deformation and deformation direction of the C4-5 intervertebral disc,joint capsule stress,the displacement of facet joints and the area of bilateral intervertebral foramen were compared between sagittal cervical manipulation and traditional rotation reduction. RESULTS AND CONCLUSION:(1)When using the rotation technique,the maximum normal equivalent stress(von Mises stress)of the C4-5 disc was 8.06 MPa;the total deformation was 1.05 mm,and the fiber ring expanded to the left and outside.When using the sagittal tip lifting technique,the maximum normal equivalent stress(von Mises stress)of the C4-5 disc was 2.60 MPa;the total deformation was 0.90 mm,and the fiber ring expanded to the left and back.Compared with the rotation technique,the pressure of the cervical manipulation technique on the disc was less(about 32.3%of the rotation technique),and the deformation degree of the disc was also light(about 85.7%of the rotation technique).(2)When the rotation technique was used,the maximum stresses of the left and right articular capsule ligaments were 0.37 MPa and 1.69 MPa,respectively.The overall displacement of the facet joint was 2.21 mm.The area of the right intervertebral foramen decreased by about 3.8%and the area of the left intervertebral foramen increased by about 0.9%.When the sagittal end lifting manipulation was performed,the maximum stresses of the left and right articular capsule ligaments were 0.27 MPa and 1.70 MPa,respectively;the overall displacement of the facet joint was 1.63 mm;the area of the right intervertebral foramen increased by about 2.6%,and the area of the left intervertebral foramen decreased by about 0.9%.Compared with rotation manipulation,sagittal end lifting manipulation had fewer changes in the displacement of facet joint,joint capsule stress and intervertebral foramen area,so it was safer to operate.(3)In conclusion,compared with cervical rotation manipulation,sagittal end lifting manipulation has fewer changes in facet joint displacement,intervertebral disc stress/deformation degree,joint capsule stress,and foraminal area.In clinical practice,more appropriate manipulation should be selected based on biomechanical results after an accurate assessment of patients'conditions.
2.Outcomes of laparoscopy combined with enhanced recovery pathway for Crohn's disease: a case-matched analysis.
Jianfeng GONG ; Lili GU ; Yi LI ; Lei CAO ; Zhihao XIE ; Dong GUO ; Tenghui ZHANG ; Jianbo YANG ; Weiming ZHU ; Ning LI ; Jieshou LI
Chinese Journal of Gastrointestinal Surgery 2015;18(1):16-20
OBJECTIVETo compare short-term outcomes of laparoscopic vs. open intestinal resection in patients with Crohn's disease (CD) under enhanced recovery after surgery(ERAS) program.
METHODSClinical data of 51 CD patients receiving laparoscopic surgery under ERAS program at our IBD center between January 2013 and March 2014 were retrospectively analyzed. Laparoscopic cases were matched to those undergoing open surgery from June 2011 to December 2012 with age, gender, location and behavior of disease. Intraoperative and postoperative data were collected.
RESULTSFifty-one laparoscopic cases were matched with 51 open cases. Laparoscopic group had a shorter median length of postoperative hospital stay (7 d vs. 9 d, P=0.034), shorter median time to first passage of gas(45 h vs. 59 h, P=0.024), shorter time to bowel movement(58 h vs. 76 h, P=0.018), less intraoperative estimated blood loss (35 ml vs. 75 ml, P=0.034) and longer median operative time (145 min vs. 105 min, P=0.003). Postoperative complications, reoperation and 30-day re-admission rates were similar and there was no mortality in the two groups.
CONCLUSIONLaparoscopic surgery is a safe and acceptable option for CD patients, and it promotes recovery of gastrointestinal movement and shortens postoperative hospital stay.
Case-Control Studies ; Crohn Disease ; Humans ; Laparoscopy ; Length of Stay ; Operative Time ; Postoperative Complications ; Reoperation ; Retrospective Studies ; Treatment Outcome
3.Study on relationship among thyroid hormone relativity and Syndrome Differentiation-types of TCM in patients with congestive heart failure.
Jie ZHOU ; Xiao-ling GAO ; Bao-zhou ZHANG ; Shijun HUANG ; Landi WANG ; Li SHENG ; Dongjing SHI ; Xiaoxia YAN ; Ani YANG ; Tenghui HUANG ; Yuqin PEI ; Jinfan CHEN ; Xuan CHENG
Chinese Journal of Integrated Traditional and Western Medicine 2004;24(10):872-875
OBJECTIVETo study the relationship between the TCM Syndrome Differentiation-types of congestive heart failure (CHF) and thyroid hormones, including triiodothyronine (T3), thyroxine (T4) and thyroid stimulating hormone (TSH), and atrial natriuretic peptide (ANP), as well as cardiac function parameters, including left ventricular ejection fraction (LVEF), mean velocity of circumferentid fiber shortening (mVcf) and A peak/E peak (A/E).
METHODSOne hundred patients with CHF were divided into 4 Syndrome Differentiation-type groups, their cardiac function parameters, ANP and thyroid hormones were determined and compared with those in the 23 subjects in the control group.
RESULTSIn CHF patients with edema and blood stasis Syndrome type, the level of plasma ANP was significantly higher than that in the control group (P < 0.05); level of T3 was significantly lower than that in the control group and in CHF patients of other three (Xin-qi deficiency, Yin-deficiency and blood stasis) Syndrome groups (P < 0.01, P < 0.01, P < 0.05 and P < 0.01); levels of LVEF and mVcf were significantly lower than those in the other three Syndrome groups (all P < 0.01). Level of T4 in other three Syndrome groups significantly increased than that in the edema and blood stasis Syndrome type. A/E value showed a higher level in patients of all TCM type than that in the control (P < 0.01). Correlation analysis showed that T3 was positively correlated with LVEF and T4 (r = 0.200, P < 0.05, and r = 0.293, P < 0.01), and negatively correlated with ANP (r = -0.263, P < 0.01); T4 was negatively correlated with A/E (r = -0.226, P < 0.05).
CONCLUSIONThe lowering of T3 and T4 and increasing of ANP may be one of the important reasons for lowering of LVEF in CHF patients with edema and blood stasis Syndrome-type. The decrease of T4 may be one of the important reasons for elevation of A/E and aggravation of left ventricular diastolic dysfunction in CHF patients of all the 4 TCM Syndrome-types.
Adult ; Aged ; Atrial Natriuretic Factor ; metabolism ; Diagnosis, Differential ; Female ; Heart Failure ; blood ; physiopathology ; Humans ; Male ; Medicine, Chinese Traditional ; Middle Aged ; Myocardial Contraction ; Stroke Volume ; physiology ; Thyroid Hormones ; blood ; Thyrotropin ; blood ; Thyroxine ; blood ; Triiodothyronine ; blood ; Ventricular Dysfunction, Left ; physiopathology ; Ventricular Function, Left
4. Clinical analysis of 33 childhood epilepsy with occipital paroxysms
Chen CHEN ; Fei YIN ; Bo LI ; Jielu TAN ; Juan YANG ; Wenhai LI ; Xiaole WANG ; Pan PENG ; Tenghui WU ; Jing PENG
Journal of Chinese Physician 2019;21(9):1287-1291
Objective:
To investigate the clinical features of childhood epilepsy with occipital paroxysms.
Methods:
The clinical data of 33 children admitted to our hospital from 2015 to 2019 were retrospectively analyzed.
Results:
The children were divided into three groups: idiopathic group (