ABSTRACT
Objective To investigate the clinical results of Bi-plane robot navigation for cannulated screw fixation in the treatment of femoral neck fractures.Methods Between May 2011 and May 2015,86 patients with femoral neck fracture who were fixed with cannulated screws were retrospectively analyzed.The patients were divided into navigation group and non-navigation group according to whether the Bi-planar robot used for navigation or not.The patients were matched concerning gender,age and Garden classification.A total of 64 patients were included in the study.In navigation group,there were 32 cases,including 10 males and 22 females.The average age was 59.4±5.6 yr (range,51-68 yr).According to Garden classification,there were 1 case of type Ⅰ,7 cases of type Ⅱ,14 cases of type Ⅲ and 10 cases of type Ⅳ.In non-navigation group,there were 32 cases,including 12 males and 20 females.The average age was 59.1±4.9 yr (range,53-70 yr).According to Garden classification,there were 1 case of type Ⅰ,5 cases of type Ⅱ,18 cases of type Ⅲ and 8 cases of type Ⅳ.Sixty-four cases were all fixed with cannulated screws.The fluoroscopy time,fluoroscopy times,drilling times,times of cannulated screw replacement,cannulated screw insertion time,blood loss,relative position between any two cannulated screws in postoperative AP view and lateral view,the angle between each cannulated screw and the femoral neck axis,fracture healing time and functional score were recorded.Results The parameters in navigation group versus non-navigation group were as follows:the average fluoroscopy time was 10.1±2.9 s vs 36.8±7.5 s,the average fluoroscopy times was 11.4±3.2 vs 43.9±11.0,the average drilling times was 3.9±1.1 vs 18.5±3.2,the average times of cannulated screw replacement was 0.4±0.6 vs 1.0±0.7;the average blood loss was 29.4± 14.7 ml vs 50.2± 17.1 ml,cannulated screws placement time averaged 28.8±7.3 min vs 43.8±7.9 min.The angle between any of two cannulated screws averaged 3.1°±1.1° vs 7.3°± 1.2° in AP view and 2.9°±1.0° vs 4.4°±2.3° in lateral view,the angle between the cannulated screw and the femoral neck axis averaged 4.4°±1.6° vs 7.5°±1.7° in AP view and 4.9°±1.6° vs 8.0°±1.3° in lateral view.Significant differences were found concerning all above parameters between the two groups.Conclusion Bi-plane robot navigation technique helps more accurate cannulated screw fixation in the treatment of femoral neck fracture.This technique is less invasive.It decreases the time of screw insertion and reduces the radiation exposure.
ABSTRACT
Objective To explore the correlation between the level of serum uric acid and metabolic syndrome and associated factors including overweight,abnormality of blood glucose,blood lipid,and hypertension.Methods 654 cases of complete medical records,aging from 30-90with median age of 65 ,were completed were selected,Data base was established by using Excell software,meanwhile,single factor analysis and stepwise regression analysis were performed using SPSS 11.0 software package.Results The levels of serum uric acid of patients with overweight,high fasting blood glucose (FBG),hypertriglyceride (TG),high-density lipid cholesterol (HDL-C)and essential hypertension (EH)were higher than that of patients without overweight,normal fasting blood glucose,normal triglyceride,low high-density lipid cholesterol and without hypertension,respectively [respectively,(270.52 ±81.63 )μmol/L vs.(226.61 ± 67.42)μmol/L,t=-7.387,P=0.000;(265.71±73.50)μmol/Lvs.(235.03 ±75.00)μmol/L,t=-4.459,P=0.000;(262.80 ±74.45 )μmol/L vs.( 235.82±75.04)μmol/L,t=-3.927,P=0.000;(243.97 ±76.33)μmol/L vs.(212.78±57.60)μmol/L,t=-2.412,P=0.016;(282.87±64.79)μmol/L vs.( 180.22±41.60)μmol/L,t=22.59,P=0.000 ].The patients with metabolic syndrome (n=107)and the patients without metabolic syndrome (n=547)were included in our study.The level of serum uric acid of patients with metabolic syndrome was higher than that of patients without metabolic syndrome [(301.22±68.55 )μmol/L vs.(230.72±71.63)μmol/L,t=9.376,P=0.000].Stepwise regression analysis showed that there was positive correlation between systolic blood pressure (SBP),diastolic blood pressure (DBP),the body mass index (BMI),triglyceride (TG),high-density lipid cholesterol (HDL-C),fasting blood glucose (FBG)and the level of serum uric acid,respectively (t=3.409,13.401,6.979,2.943,3.514,4.706 respectively;P=0.000,0.001,0.000,0.003,0.000,0.000 respectively).Conclusion The level of serum uric acid in patients with metabolic syndrome is higher than those without metabolic syndrome.There is positive correlation between the level of serum uric acid and associated factors of metabolic syndrome including overweight,abnormality of blood glucose and blood lipid,and hypertension.