OBJECTIVETo compare the effect of three cannulated screws and dynamic hip screw (DHS) combined with antirotation screw in treating patients with comminuted fractures of femoral neck.

METHODSFrom January 2008 to December 2012,67 patients with comminuted fractures of femoral neck were treated with three cannulated screws or DHS combined with antirotation screw. Among them, 36 patients were treated with DHS combined with antirotation screw including 24 males and 12 females with an average of 43.7 years old ranging from 22 to 58 years old; 31 patients were treated with three cannulated screws including 22 males and 9 females with an average of 43.0 years old ranging from 24 to 56 years old. The incision size, operation time, blood loss, blood transfusion rate, postoperative hospital stay, walking time, weight-bearing time, union time, incidence of complication were recorded and compared between two groups, and functional outcomes were evaluated by Harris scoring.

RESULTSAll incision healed at stage I. The differences in operation time, blood loss, blood transfusion rate and postoperative hospital stay between two groups were not significant (P > 0.05). Incision size of DHS group (5.00 ± 0.86) cm was larger than that of cannulated screw group (3.30 ± 0.57) cm (P < 0.01). All patients were followed up more than one year, and the follow-up time showed no significant difference between two groups (P > 0.05). Walking time of DHS group (19.0 ± 3.5) d was less than that of cannulated screw group (37.0 ± 6.3) d (P < 0.01. Partial and full weight-bearing time of DHS group (23.0 ± 7.0) d and (138.0 ± 13.0) d was less than that of cannulated screw group (38.0 ± 5.7) d and (164.0 ± 12.0) d (P < 0.01). Union time of DHS group (151 ± 11) d was less than that of cannulated screw group (162 ± 11) d (P < 0.01). Harris hip score of DHS group (91.0 ± 5.7) was higher than that of cannulated screw group (85.0 ± 12.0) (P < 0.01). No significant differences were found in the incidence of postoperative complications between two groups (P > 0.05).

CONCLUSIONThe DHS combined with antirotation screw is superior to three cannulated screws for treatment of comminuted fractures of femoral neck due to earlier weight-bearing, faster fracture healing and better hip function

Adult ; Bone Screws ; Female ; Femoral Neck Fractures ; surgery ; Follow-Up Studies ; Fracture Fixation, Internal ; adverse effects ; methods ; Fractures, Comminuted ; surgery ; Humans ; Male ; Middle Aged

The hydrogen peroxide low temperature plasma sterilization technology solved the problems of thermo-sensitive materials' disinfection and sterilization based on its development and unique characteristics. This paper introduced the researches of clinical application quality control, and showed the hydrogen peroxide low temperature plasma sterilizers were being widely used in hospitals and highly recognized. According to the clinical data and the literatures of the domestic equipment in preliminary application, it could be concluded that the technology maturity of domestic hydrogen peroxide low temperature plasma sterilizers was in a high level. The advantages of using domestic hydrogen peroxide low temperature plasma sterilizers to do disinfection and sterilization included lower cost, safer, faster and non-toxic, etc. Also the management system should be improved and the clinical staff should master the technical essentials, obey the procedures strictly, verify periodically and offer full monitoring to upgrade the quality of sterilization.
Cold Temperature ; Disinfection ; instrumentation ; Hydrogen Peroxide ; chemistry ; Plasma Gases ; chemistry

Objective To explore the effect of sodium fluoride on DNA damage and apoptosis on ox peripheral blood lymphocyte cultured in vitro.Methods Using lymphoeytes separation medium lymphocytes were separated and different concentration of NaF(0,4,8,12,16 mg/L)were added into the cultual system of lymphocytes for 24 h.Cell viability was measured by MTT.nuclear changes stained by acridine orange-ethidium bromine staining (AO/EB)were observed under fluoroscope,DNA fragment was measured by agarose gel electrophoresis.DNA damage was detected by alkaline SCGE.The differences between each groups were compared.Results Cells were exposed to 4,8,16 and 24 mg/L NaF in 24 h,cell survival rates,respectively being(73.743±0.552)%,(69.184±0.724)%,(65.736±0.055)%and(63.651±0.287)%,decreased significantly compared to control group.There were distinctive cell apoptosis,evident DNA damage and visible dose-effect relation(R2=0.7456).Conclusions A certain concentration of sodium fluoride lcads to lymphocytes apoptosis and DNA damage.

OBJECTIVETo compare therapeutic effects between arthroscopic medial retinaculum plication and plaster external fixation for the treatment of acute patellar dislocation.

METHODSFrom February 2006 to October 2012,29 patients with acute patellar dislocation were divided into two groups: operation group and non-operation group. The patellar dislocation duration was 2 weeks. In operation group, there were 7 males and 10 females, with an average age of (16.2 ± 6.2) years old, and the patients were treated with arthroscopic medial retinaculum plication. In non-operation group, there were 5 males and 7 females,with an average age of (16.3 ± 5.0) years old,and the patients were treated with plaster external fixation. The Kujala scores, patellar tilt angle measured on CT film, apprehension test and recurrence rate of patellar instability were observed before and 1 year after treatment.

RESULTSIn operation group, the pre-treatment and post-treatment patellar tilt angles had no statistical difference, but the post-treatment Kujala score was lower than that of pre-treatment; while in non-operation group, the post-treatment patellar tilt angle was larger than that of pre-treatment, and the post-treatment Kujala score was lower than that of pre-treatment. At 1 year after treatment, the patellar tilt angle (21.2 ± 5.3) of patients in non-operation group was larger than (13.5 ± 3.5) of operation group, and the Kujala score 73.3 ± 10.5 of patient in non-operation group was lower than 84.1 ± 5.6 of operation group.

CONCLUSIONDuring 1 year after operation, arthroscopic medical retinaculum plication is a more effective treatment for acute patellar dislocation compared with plaster external fixation.

Adolescent ; Adult ; Arthroscopy ; Case-Control Studies ; Casts, Surgical ; Child ; Female ; Fracture Fixation ; Humans ; Male ; Patellar Dislocation ; surgery ; therapy ; Patellar Ligament ; surgery ; Treatment Outcome ; Young Adult

Objective Magnetic resonance diffusion tensor imaging (DTI) was applied to study the cantral auditong pathway in patients with .Methods A total of 30 cases of acquired hearing loss patients were divided into 2 groups ,group 1 (15 ,sudden deafness) and group 2 (15 ,with duration up to 2 years SNHL group from the time of onset) .A total of 15 cases of normal-hearing patients on MRI examination were selected as the control group for the same period .All subjects received DTI of whole brain .The values of the whole brain DTI were obtained from the inferior colliculus and lateral lemniscus ,consisting of the fractional anisotropy (FA) ,radial diffusion (RD) ,axi‐al dispersion (AD) and mean diffusivity .Results There were significant differences(P<0 .05) in FA of bilateral in‐ferior colliculus among sudden deafness group ,SNHL of 2 -year -history group and the control group by ANO‐VA .FA of inferior colliculus in the control group was higher than that of in the SNHL group ,but lower than that of in the sudden deafness group .RD of lateral lemniscus in the SNHL group was higher than that of in the sudden deafness group(P<0 .05) ,MD of lateral lemniscus in the sudden deafness group was higher among the other 2 groups ,and there were signigicant(P<0 .05) .For AD of the inferior colliculug and lateral lemniscus ,there were no differ‐ences among the 3 groups (P>0 .05) .Conclusion There was no obviously abnormal change on the central auditory processing in sudden deafness group ,but significant destruction was found on 2 years SNHL group .It indicated that central auditory processing of the history of sensorineural deafness affected the structural changes of the central au‐ditory pathway .

Objective Measurement of ankle brachial index (ABI) is a simple method of assessing lower limb arterial blood supply,while measurement of toe brachial index (TBI)has only been advocated as an alternative.The aim of this study was to obtain information about whether TBI should be taken in type 2 diabetes,even when ABI is normal,and to evaluate the relationship between TBI and atherosclerosis.Methods In a crosssection study,ABI,TBI,and carotid intimal-medial thickness (IMT) were measured on 979 outpatients with type 2 diabetes in Ruijin Hospital.Those with normal ABI (0.9 ≤ABI ＜ 1.3,n = 945) were divided into two groupsnormal TBI group(TBI≥0.6,n=893) and low TBI group(TBI＜0.6,n=52),and then the clinical and laboratory data were compared between these two groups.Furthermore,the relationship between TBI and atherosclerosis was investigated.Atherosclerosis was defined as the maximum IMT ≥ 1.1 mm.Results Low ABI and low TBI were detected in 1.3% and 6.6% of the patients,respectively.Comparison of the clinical and laboratory data between the two groups showed that age and HbA1C values were significantly higher in the low TBI group.Furthermore,TBI was inversely associated with IMT(β=-0.217,P＜0.01),an indicator for atherosclerosis of the carotid artery.Multiple logistic regression analysis revealed that decline of TBI was an independent risk factor of atherosclerosis (OR=1.30,95% CI 1.01-1.69,P＜0.05).Conclusion In type 2 diabetes,the decline of TBI is associated with atherosclerosis,indicating the necessity for diabetic patients to detect TBI,even when ABI is within normal range,in order to detect peripheral artery disease in early stage,and reduce the risk for atherosclerosis.

Toxic epidermal necrolysis (TEN) is a serious, usually drug-induced, dermatosis characterized by extensive erythema, necrosis, bullous detachment of the epidermis, constitutional symptoms, and visceral involvement. We report a 62-year-old man who was diagnosed TEN after percutaneous coronary intervention (PCI). After consulting with a cardiologist, all pre-hospital medication was discontinued except clopidogrel. With supportive care, the patient recovered.
Angioplasty, Balloon, Coronary ; Humans ; Male ; Middle Aged ; Stevens-Johnson Syndrome ; etiology ; Ticlopidine ; analogs & derivatives ; therapeutic use

Objective To explore the roles of autoantibodies against ?1 adrenoceptor(?1-receptor)and M2 cholinergic receptor(M2-receptor)in patients with chronic renal insufficiency.Methods The epitopes of the second extracellular loop of ?1 receptor and M2 receptor were synthesized and used respectively to detect the sera autoantibodies against ?1 receptor and M2 receptor by enzyme linked immunosorbent assay(ELISA) in 76 patients with chronic renal insufficiency,60 cases with hypertension and 40 healthy controls.Results In patients with chronic renal insufficiency,the positive rates of the autoantibodies against ?1-receptor and M2-receptor were 56.7% and 38.1% respectively,which were much higher than those of patients with hypertension(18.3% and 11.7%) and higher than those of healthy controls(17.5% and 15.0%)(all P

Objective To explore the role of the autoantibodies against ?_1-adrenergic receptor(?_1-receptor)in the development of hypertension with renal failure.Methods The epitopes of the second extracellular loop of ?_1-receptor were synthesized and used respectively to screen sera autoantibodies from patients with hypertension with renal failure(61 cases),hypertension without renal failure(58 cases) and healthy blood donors(40 cases,control) by ELISA method.Results The positive rates of the autoantibodies ?_1-receptor(69%,42/61) in patients with hypertension with renal failure were higher than those of patients with hypertension without renal failure(19%,11/58) respectively(P

Objective To observe the therapeutic effect of methylphenidate hydrochloride controlled-release tablets (OROS-MPH) on attention-deficit hyperactivity disorder (ADHD). Methods Seventy-two cases of children with ADHD were randomly divided into treatment group (40) and control group (32). Cases of treatment group were given 0.8-1.0 mg??kg-1 of OROS-MPH for three months. Cases of control group were given 1.2-1.4 mg??kg-1 of atomoxetine hydrochloride for three months. After 12 weeks treatment, children were evaluated by Wechsler intelligence test, Integrated visual and auditory continuous performance test (IVA-CPT), the SNAP-Ⅳ effect assessment scale and TESS scale. Results The treatment efficiency was similar in both groups. Attention deficit and hyperactivity in both groups were improved obviously. Wechsler intelligence score was significantly elevated ( P<0. 05), SNAP-Ⅳ score was significantly decreased ( P<0. 05), and IVA-CPT score was increased significantly after treatment ( P<0.05) . The changes of scores on hyperactivity, auditory attention and visual attention were more in OROS-MPH group than those in atomoxetine group(P<0.05). There was loss of appetite in 10 children of OROS-MPH group and in 14 children of atomoxetine group. There was drowsiness in 1 child of OROS-MPH group and in 5 children of atomoxetine group, as well as difficulty to fall asleep in 6 children of OROS-MPH group and 1 child of atomoxetine group (P<0.05). One child developed a transient spasm after 4-month treatment. Conclusion Both of OROS-MPH and atomoxetine hydrochloride can improve learning ability and the symptom of attention deficit and hyperactivity, and they are similarly effective and safe in children with ADHD, but OROS-MPH can work faster.