Mechanism design and analysis of a simple leg-sliding rehabilitation equipment / 中国康复理论与实践

ObjectiveTo design a simple leg-sliding rehabilitation equipment for patients with lower limb dysfunction who need to exercise their leg muscles in bed at the early stage of rehabilitation. MethodsThe mechanism scheme was designed using the crank slider transmission system. The kinematic model was established and the structural dimensions were determined according to the human joint mobility, analysis and verification were then implemented; and the strutural strength of the machanism was verified, and based on the analysis, a protype was built to verify the feasibility of proposed scheme. ResultsThe range of joint activities of the proposed mechanism was in line with the normal human joint activities, the structural strength met the requirements, the prototype operated smoothly, and the actual running speed was basically consistent with the theoretical planning speed. ConclusionThis design could meet the needs of rehabilitation training for bedridden patients with lower limb dysfunction at the early stage of rehabilitation. It has the advantages of small size and light weight, which provides reference value for promoting the development of miniaturized and lightweight lower extremity rehabilitation equipment.

Optimization of detection conditions of pre-donation ABO blood type screening by sliding methods in fixed blood donation sites / 中国输血杂志

【Objective】 To explore the quantitative value of key points for ABO blood group initial screening in fixed blood donation sites, so as to provide reference for standardized testing process of sliding method. 【Methods】 Several groups of experiments were carried out to illustrate the optimal conditions, including the serum dosage of monoclonal reagent, red blood cell dosage of blood sample, and reaction time in ABO blood group initial screening, by sliding method, and the quantitative value of key points of sliding method was preliminarily determined. Blood typing tests of 310 blood donor samples including type A, B, O, AB, subtype A and subtype AB were conducted to evaluate the effects of quantitative value of key points in the initial screening procedure. The test tube method would be conducted if the results are inconsistent with the fully automated blood grouping analyzer. The ABO subtypes suspected are identified by serological and molecular biological methods. 【Results】 The quantitative value of key points in initial screening procedure of sliding methods was as follows: 2 drops of reagent serum, 5-10 μL of whole blood and 3 minutes of reaction time. The concordance rate of ABO blood type screening comparison experiment in 310 blood donors was 100%. 【Conclusion】 ABO blood group initial screening by sliding method with quantitative value can effectively standardize the pre-donation blood type screening in fixed blood donation sites, and can meet the requirements of ABO blood group initial screening.

Dynamic assessment of the dose perturbation by sliding rails in intensity-modulated radiotherapy for spinal metastases / 中华放射医学与防护杂志

Objective:To investigate the impact of carbon based non-conductive sliding rails on intensity-modulated radiation therapy (IMRT) planning for vertebral tumors.Methods:A reconstruction imaging of the couch plate and its rails removed from the EDGE linear accelerator was acquired by helical computed tomography (CT), and pushed into the treatment planning system (TPS). Based on CT images of homogeneous phantom and patients in our database, 6 and 10 MV photon IMRT plans were designed with five fields (180°, 200°, 220°, 160°, 140°), setting a prescribed dose of 3 Gy/F ×10 F to the planning target volume (PTV), and the dose was calculated by AcruosXB. In addition, optimization plans (OP) without rails and with rails symmetrically moving (4-19 cm, step size 1 cm) were created and verification plans(VP) were created by inserting and removing slide rail′s structure from the corresponding OP in VP. The differences in mean dose ( Dmean), homogeneity index (HI), and conformability index (CI) of the PTV, and maximum dose ( Dmax) of the spinal cord were compared and analyzed between the VP and OP. Results:HI of PTV with and without the rails were worse in the 6/10 MV verification plans, with a maximum difference of 2%. In 6 MV plans, with rails Dmean of PTV decreased by (2.07±0.99)%, CI increased by (4.91±3.12)%, and Dmax of spinal cord decreased by (1.83±1.37)%. Without rails, the Dmean of PTV increased by (2.02±0.96)%, but CI decreased by (3.07±1.31)% and Dmax of the spinal cord increased by (2.03±1.44)% in the patient respectively. There were significant statistical differences between groupswith and without rails( F=27.55, 361.32, 13.05, P<0.05). The target volume Dmean and spinal cord Dmax decreased with a sloping " W" with the change of the rail position. The difference appeared to be noticeable in the range of less than 10 cm, but it gradually decreased as the rails slid to the outside until it reached zero, and the Dmean of PTV and Dmax of the spinal cordchanges were less in 10 MV plans, comparing to 6 MV plans. Conclusions:The dose attenuation by the sliding rails of the Qfix kVue should not ignored in the IMRT of spinal metastases and the slide position should be consistent with the planned position.

Bilateral filtering based sliding motion compensated 4D-CBCT: a simulation study / 中国辐射卫生

Objective This study reconstructed 4D-CBCT for fully automatic compensated sliding motion by incorporating the bilateral filtering into the Deformable Vector Field (DVF). Methods First, a motion compensated simultaneous algebraic reconstruction technique (Modified Simultaneous Algebra Reconstruction Technique, mSART) was used to generate a high quality reference phase by using all phase projection stogether with the initial 4D-DVFs, which were generated via Demons registration between 0% phase and each other phaseimage. The 4D-DVF was optimized by matching the forward projection of the deformed 0% phase with the measured projection of the target phase. The loss function’s DVF smoothing constrain term contained bilateral filtering kernel that contained: 1) an spatial domain Guassian kernel; 2) animage intensity domain Guassian kernel; and 3) a DVF domain Guassian kernel. By choosing suitable kernel variances, the sliding motion can be extracted. A non-linear conjugate gradient optimizer wasused. We validated the algorithm on a Non-Uniform Rotational B- spline based Cardiac-Torso (NCAT) phantom. Quantification was evaluated by: 1) the Root-Mean-Square-Error (RMSE) together with the Maximum-Error (MaxE); 2) the Dice coefficient of the extracted lung contour from the final reconstructed images and 3) the relative reconstruction error (RE) to evaluate the algorithm's performance. Results The motion trajectory's RMSE/MaxEare 0.796/1.02 mm for bilateral filtering reconstruction; and 2.704/4.08 mm for original reconstruction. Image content such a stherib position, the hearted gedefinition, the fibrous structures all had been better corrected with bilateral filtering. Conclusion We developed a bilateral filtering based fully automatic sliding motion compensated 4D-CBCT scheme. Digital phantom study confirmed the improved motion estimation and image reconstruction ability. It can be used as a 4D-CBCT image guidance tool for lung SBRTtreatment.

Femoral Neck Non-union Treated using Compression Screw with or without Gluteus Medius Trochanteric Flap: A Case Series of Ten patients

@#Non-union is a challenging complication following a femoral neck fracture. Inability to achieve anatomical reduction and compression over the fracture leads to non-union. We reported a 10-case series of femoral neck non-union treated with sliding compression screw and anti-rotational screw with or without gluteus medius local trochanteric flap. When compression could not be achieved and a gap was present over the non-union site, a gluteus medius trochanteric flap was used to enhance the union. Surgeries were performed as a single-stage procedure through the Watson Jones approach. The initial implants were removed, followed by fracture reduction, during which the varus deformity was corrected, and the neck length was preserved as much as possible. Patients were advised for strict non-weight bearing until the presence of trabecular bone crossing the fracture on the radiographs. Union was achieved at three months in all cases. Patients undergoing surgery without trochanteric flap had normal abduction strength, and the neck length was maintained. All cases had no significant loss of function. Patients with trochanteric myo-osseous flap had neck shortening with weak abductors with MRC grade 4. Two out of 10 cases developed avascular necrosis of the femoral head before intervention. One case progressed to collapse of the femoral head requiring implant removal. This and the femoral neck shortening, caused this patient to have weak abductors and a positive Trendelenburg gait. We observed that delayed surgery leads to neck shortening and fracture gap requiring trochanteric myo-osseous flap to achieve union.

Comportamiento ante el desgaste por deslizamiento en seco del acero inoxidable súper dúplex en un tribómetro bola sobre anillo / Dry sliding wear behavior of super duplex stainless steel in a ball on ring tribometer

RESUMEN En el presente trabajo se realiza la caracterización del comportamiento ante el desgaste por deslizamiento en seco de un acero inoxidable súper dúplex. Los ensayos fueron desarrollados en un tribómetro tipo bola sobre anillo. Como material del anillo se empleó el acero inoxidable dúplex tipo SAF 2507 sin tratamiento térmico y como material para la bola se usó el acero AISI 52100. Los ensayos se realizaron sin lubricante en condiciones de ambiente (aire), temperatura y humedad estándar de laboratorio. Los parámetros seleccionados, a fin de estudiar sus efectos en el coeficiente desgaste por deslizamiento, fueron: velocidad de deslizamiento (0,9 m/s y 2 m/s), carga normal (9 N, 19 N y 29 N) y distancias de deslizamiento (500 m, 1000 m y 2000 m). Se empleó un diseño experimental de Taguchi con nueve tratamientos y dos réplicas. En la caracterización del acero SAF 2507 se obtuvo valores del coeficiente de desgaste en el intervalo desde 0,19588 x 1012 m2/N hasta 0,72381 x 1012 m2/N, para las condiciones evaluadas. El factor que más afecta el coeficiente de desgaste es la velocidad de deslizamiento. El mecanismo de desgaste identificado para el SAF 2507 es de adhesión y delaminación de alta velocidad.

ABSTRACT In this paper the characterization of the behavior during dry sliding wear of a super duplex stainless steel was performed. The tests were developed in a ball on ring tribometer type. As material of the ring is used the duplex stainless steel type SAF 2507 without heat treatment and as material for the ball is used the steel AISI 52100. Tests were conducted without lubrication in ambient conditions (air), temperature and humidity laboratory standard was used. The parameters selected in order to study its effects on sliding wear coefficient were: sliding speed (0.9 m/s and 2 m/s), normal load (9 N, 19 N and 29 N) and distances slip (500 m, 1000 m and 2000 m). Taguchi experimental design with nine treatments and two replicates was used. In the characterization of steel SAF 2507 wear coefficient values was obtained in the range from 0.19588 x 10-12 m2/N to 0.72381 x 10-12 m2/N, for the conditions tested. The factor that most affects the wear coefficient is the sliding velocity. The wear mechanism identified for the SAF 2507 was adhesion and high speed delamination.

Effectiveness of percutaneous compression plate fixation for femoral neck fractures / 中国修复重建外科杂志

Objective: To investigate the effectiveness of percutaneous compression plate (PCCP) fixation for femoral neck fracture. Methods: A clinical data of 100 patients with femoral neck fractures who were treated with internal fixation were analyzed retrospectively. The fractures were fixed with the cannulated screws (CS) in 55 patients (CS group) and with the PCCP in 45 patients (PCCP group). There was no significant difference in gender, age, the cause of injury, the fracture type, complications, and disease duration between the two groups ( P>0.05). The quality of fracture reduction, bone resorption, screw slipping, femoral neck shortening, complications (nonunion, failure of fixation, and osteonecrosis of femoral head), and functional recovery of hip (Harris score) were compared between the two groups. Results: All incisions healed by first intention. All patients were followed up 24-56 months, with an average of 30.7 months. The quality of fracture reduction was excellent in 26 cases, good in 18 cases, fair in 9 cases, and poor in 2 cases in CS group and excellent in 21 cases, good in 17 cases, fair in 4 cases, and poor in 3 cases in PCCP group, showing no significant difference between the two groups ( Z=-0.283， P=0.773). The incidence of nonunion in PCCP group was significantly lower than that in CS group ( P=0.046), and the fracture healing time in PCCP group was shorter than that in CS group ( t=2.155, P=0.034). There was no significant difference in the incidences of bone resorption, screw slipping, femoral neck shortening, failure of fixation, and osteonecrosis of femoral head between the two groups ( P>0.05). The overall complication rates were 27.27% (15/55) in CS group and 8.89% (4/45) in PCCP group, showing significant difference ( χ2=5.435, P=0.020). The Harris score in PCCP group at 6 months after operation was significantly higher than that in CS group ( t=-2.073, P=0.041). However, there was no significant difference in the Harris score at 12, 18, and 24 months after operation between the two groups ( P>0.05). Conclusion: Stable sliding compression of PCCP is benefit for the femoral neck fracture healing, especially shortening union.

Effectiveness and safety of modified sliding chute bone graft plus hollow screw fixation for Tibiotalar joint fusion / 中国组织工程研究

BACKGROUND: Tibiotalar joint fusion ways are various, and it is a difficulty in necrotic tibiotalar joint fusion. There are few comparative studies on the repair outcomes of each implant. OBJECTIVE: To compare the effectiveness and safety of modified sliding chute bone graft plus hollow screw fixation with simple screw internal fixation and plate internal fixation for tibiotalar joint fusion. METHODS: Fifty-six patients who underwent tibiotalar joint fusion were Included, Including 16 cases of screw fixation, 22 cases of plate fixation and 18 cases of modified sliding chute bone graft plus hollow screw fixation. Ankle function was compared after simple screw internal fixation, plate internal fixation and modified sliding chute bone graft plus hollow screw fixation. The ankle foot scoring system of American Orthopedic Foot and Anlde Society was used for evaluation. At the same time, the operation time, brace fixation time and fusion time of the three surgical methods ware compared. The gait at the last follow-up was compared. The average follow-up time was 2.4 years. The experiment met the ethical requirements of the First Affiliated Hospital of Harbin Medical University. All patients provided written informed consent for study participation. RESULTS AND CONCLUSION: (1) All the patients obtained exactly bony fusion. Compared with the plate fixation group, the slide bone grafting group had significant advantages in the fusion time and the last gait (P < 0.05), and the screw fixation group had significant advantages in the operation time (P < 0.05). (2) Using the ankle foot scoring system of American Orthopedic Foot and Ankle society, there was no significant difference between the sliding chute bone graft group and the plate fixation group, but both groups were significantly better than the screw fixation group (P < 0.05). (3) Adverse events had not been found in each group. (4) These results suggest that modified sliding chute bone graft plus hollow screw fixation for anlde joint lusion can effectively improve ankle joint fusion rate compared with single screw fixation, which is effective and safe.

Immediate effect of dynamic oscillatory stretching vs. neurodynamic sliding technique on stretch tolerance, popliteal angle range and hamstring flexibility in apparently healthy individuals with hamstring tightness: a pre-post clinical trail

Background: The hamstrings being postural muscles are prone to tightness which leads to muscular imbalances and inefficiency of daily living activities. Hence, the present study aims to compare two competent techniques Dynamic Oscillatory Stretching (DOS)vs. neurodynamic sliding (NDS) technique.Methods: A Total of 60 subjects were recruited (31 males, 29 females). passive 90-90 knee extension test, modified v sit to reach test and NPRS scale were used to evaluate the range, flexibility and stretch tolerance in participants pre intervention and were allotted into Group A (DOS) and Groups B. The subjects were then re-assessed immediately post intervention.Results: The results were obtained using the independent and dependent t-tests. Post intervention results were suggestive of a significant within group result with a p=0.0001 under all the parameters. Subjects in Group a showed a greater increase in the ROM while, Group B showed a better result in flexibility and stretch tolerance.Conclusions: Both the techniques are efficient and can be incorporated in sports rehabilitation to prevent on site injury thereby improving athlete’s performance.

Application of a modified M-shaped flap in defect repair after resection of lower lip cancer / 口腔疾病防治

Objective@# To observe the clinical effect of the modified M-shaped flap for repairing defects following resection of lower lip cancer and to provide a reference for clinical application.@*Methods @#Fourteen cases using modified M-shaped flaps to repair lower lip cancer surgery defects were retrospectively analyzed. The postoperative follow-up patients’ flap survival, mouth opening, denture use, bilateral mouth angle symmetry, recurrence and survival were analyzed.@*Results @#Fourteen patients with lower lip cancer underwent reconstruction immediately after surgery, and the defect range after tumor resection was 30% to 50% of the lower lip. The continuity of the orbicularis oculi muscle is reconstructed by modified M-shaped flap to transfer bilateral residual lip tissue. The blood supply to the flap is stable. All patients’ flaps survived completely without complications, such as hemorrhage, infection or flap necrosis, and their lip movement and sensation recovered well. There were no obvious obstacles in opening and closing or pronunciation and dietary function, and the mean maximum opening was (3.06 ± 0.23) cm. Three patients used active dentures, which could be removed normally. All patients’mouths were preserved. Approximately 85.7% of patients (12/14) had bilateral symmetry of the bilateral mouth, the flaps matched the facial color, and the lower lip was naturally beautiful, as the scar was not obvious. After 6 months to 4 years of follow-up (mean 2 years and 6 months), no recurrence or death occurred.@*Conclusion @#The modified M-shaped valve design is simple and easy to operate. This method can be applied to 30% to 50% defect reconstructions of the lower lip to retain the corner of the mouth.

Sliding compression technique with proximal femoral nail antirotation for intertrochanteric fractures in the elderly patients / 中华创伤骨科杂志

Objective To observe the clinical efficacy of sliding compression technique with proximal femoral nail antirotation (PFNA) for the treatment of intertrochanteric fractures in the elderly patients.Methods A retrospective study was conducted in the 97 elderly patients with intertrochanteric fracture who had received PFNA internal fixation at Department of Orthopaedics,The Second Fuzhou Hospital Affiliated to Xiamen University from January 2010 to December 2017.They were divided into 2 groups depending on whether the sliding compression technique was used or not in the PFNA fixation.In the sliding compression group of 51 patients,there were 31 males and 20 females with an age of 79.9 ± 6.2 years,and 2 cases of type Ⅰ,8 cases of type Ⅱ,21 cases of type Ⅲ,16 cases of type Ⅳ,3 cases of type Ⅴ and one case of type Ⅵ according to the modified Evans classification.In the conventional PENA group of 46 cases,there were 27 males and 19 females with an age of 77.5 ± 8.0 years,and 3 cases of type Ⅰ,6 cases of type Ⅱ,15 cases of type Ⅲ,18 cases of type Ⅳ and 4 cases of type Ⅴ according to the modified Evans classification.The 2 groups were compared in terms of the separation of fracture ends at immediate postoperation and 4 weeks postoperation,anesthesia time,operative time,intraoperative bleeding,fracture reduction,fracture healing time,Harris scores of hip function at one year postoperation and postoperative complications.Results There were no significant differences between the 2 group of patients in their preoperative general data,indicating they were compatible (P ＞ 0.05).The sliding compression group had significantly shorter separation of fracture ends at immediate postoperation and at 4 weeks postoperation (2.18 ± 0.59 mm and 0.92 ± 0.27 mm) and significantly shorter fracture healing time (5.2 ± 0.9 weeks) than the conventional PENA group (3.91 ± 0.76 mm and 2.15 ± 0.52 mm;6.5 ±0.9 weeks) (P ＜ 0.05).There were no significant differences between the 2 groups in anesthesia time,operative time,intraoperative bleeding,fracture reduction or Harris scores of hip function at one year postoperation (P ＞ 0.05).The sliding compression group had significantly lower incidences in pulmonary infection [9.8％ (5/51)],blade loosening or cutout [0 (0/51)] and incision complications [0 (0/51)] than the conventional PENA group [26.1％ (12/46),17.4％ (8/46) and 19.6％ (9/46),respectively] (P ＜ 0.05).Conclusions In the treatment of intertrochanteric fractures in the elderly people,sliding compression technique with PFNA may lead to fewer postoperative complications and faster fracture healing.

Sliding compression technique with proximal femoral nail antirotation for intertrochanteric fractures in the elderly patients / 中华创伤骨科杂志

Objective@#To observe the clinical efficacy of sliding compression technique with proximal femoral nail antirotation (PFNA) for the treatment of intertrochanteric fractures in the elderly patients.@*Methods@#A retrospective study was conducted in the 97 elderly patients with intertrochanteric fracture who had received PFNA internal fixation at Department of Orthopaedics, The Second Fuzhou Hospital Affiliated to Xiamen University from January 2010 to December 2017. They were divided into 2 groups depending on whether the sliding compression technique was used or not in the PFNA fixation. In the sliding compression group of 51 patients, there were 31 males and 20 females with an age of 79.9±6.2 years, and 2 cases of type Ⅰ, 8 cases of type Ⅱ, 21 cases of type Ⅲ, 16 cases of type Ⅳ, 3 cases of type Ⅴ and one case of type Ⅵ according to the modified Evans classification. In the conventional PENA group of 46 cases, there were 27 males and 19 females with an age of 77.5±8.0 years, and 3 cases of type Ⅰ, 6 cases of type Ⅱ, 15 cases of type Ⅲ, 18 cases of type Ⅳ and 4 cases of type Ⅴ according to the modified Evans classification. The 2 groups were compared in terms of the separation of fracture ends at immediate postoperation and 4 weeks postoperation, anesthesia time, operative time, intraoperative bleeding, fracture reduction, fracture healing time, Harris scores of hip function at one year postoperation and postoperative complications.@*Results@#There were no significant differences between the 2 group of patients in their preoperative general data, indicating they were compatible (P>0.05). The sliding compression group had significantly shorter separation of fracture ends at immediate postoperation and at 4 weeks postoperation (2.18±0.59 mm and 0.92±0.27 mm) and significantly shorter fracture healing time (5.2±0.9 weeks) than the conventional PENA group (3.91±0.76 mm and 2.15±0.52 mm; 6.5±0.9 weeks) (P<0.05). There were no significant differences between the 2 groups in anesthesia time, operative time, intraoperative bleeding, fracture reduction or Harris scores of hip function at one year postoperation (P>0.05). The sliding compression group had significantly lower incidences in pulmonary infection [9.8% (5/51)], blade loosening or cutout [0 (0/51)] and incision complications [0 (0/51)] than the conventional PENA group [26.1% (12/46), 17.4% (8/46) and 19.6% (9/46), respectively] (P<0.05).@*Conclusions@#In the treatment of intertrochanteric fractures in the elderly people, sliding compression technique with PFNA may lead to fewer postoperative complications and faster fracture healing.

Plummer-vinson syndrome associated with lower esophageal ring (Schatzki's Ring)

We report a case of Plummer-Vinson syndrome (PVS) and lower esophageal ring with a small sliding hiatal hernia. PVS is a rare entity formed by the combination of dysphagia, cervical esophageal web and iron deficiency anemia. It occurs mainly in middle-aged women1,2,3. A lower esophageal ring and a small sliding hiatal hernia were also observed in this case. We documented clinical manifestations of iron deficiency anemia through images and esophageal abnormalities through barium esophagogram. (AU)

Usefulness of transthoracic lung ultrasound for the diagnosis of mild pneumothorax

The aim of the present study was to investigate the diagnostic accuracy of ultrasonography in the detection of mild pneumothorax using computed tomography (CT) in dogs. Nine adult healthy beagles were included in the study. A thoracic tube was inserted into pleural space at the left thoracic wall, and each dog underwent the examinations in the order of CT, lung ultrasonography, and radiography before the infusion of room air into the pleural space. Two, 3, and 5 mL/kg infusions of room air were sequentially introduced into the pleural space and CT, lung ultrasound, and radiography examinations were performed. Sonographic signs included A-lines, stratosphere, lung sliding, lung point, lung pulse, and reverse sliding signs. Radiographs were evaluated for the absence or presence of a pneumothorax. Lung ultrasound results were more accurate than radiography results for the detection of mild pneumothorax. The overall sensitivity of the sonographic reverse sliding sign was higher than that of other sonographic signs, and its specificity was 100% for detection of mild pneumothorax. Thus, the reverse sliding sign is useful when using lung ultrasonography for diagnosis of mild pneumothorax.

A meta-analysis of different internal fixation strategies of Pauwels III femoral neck fractures / 上海交通大学学报（医学版）

Objective • To compare the clinical and functional outcomes of cannulated screw (CS) with sliding hip screw (SHS) in the fixation of Pauwels III femoral neck fractures systematically. Methods • In the meta-analysis, articles were searched from Pubmed database, Embase database, Cochrane library, CNKI database, and Sinomed database. The selected articles were analyzed by Revman 5.26 software. Results • Six clinical studies met the inclusion criteria. A total of 350 patients including 213 with CS fixations and 137 with SHS fixations were pooled in the meta-analysis. The results showed that the non-union rate in SHS group was significantly lower than that in CS group. However, the surgery time was significantly shorter in CS group. Conclusion • SHS fixation has the advantage of reducing postoperative non-union rate in Pauwels III femoral neck fractures, but the operative process is relatively complicated, which seemingly causes more blood loss during surgery, and may lead to a less satisfactory functional recovery.

Geriatria ­ atualização em pistas deslizantes / Geriatria ­ sliding plates atualization

No artigo é proposta a substituição da resina lisa na região posterior das pistas deslizantes por dentes cúspide zero, respeitando o plano de orientação obtido através do desgaste de Paterson, na reabilitação do paciente edentado e sugerido um esquema de montagem dos dentes anteriores visando o equilíbrio articular.

The authors propose replacing the smooth resin in the posterior region of the sliding tracks by zero cusp teeth, respecting the guidance plan obtained by Paterson wear in the rehabilitation of the edentulous patient and suggest an arrangement of the anterior teeth in order to articulate the balance.

Lung Ultrasound (in the Critically Ill) Superior to CT: the Example of Lung Sliding / 대한구급학회지

This review article shows the potential of lung ultrasound in the critically ill (LUCI) to study lung sliding and describes the optimal equipment for its assessment. Then, it analyses the integration of lung sliding within lung ultrasound then whole body critical ultrasound. It describes the place of lung sliding in the BLUE-protocol (bedside lung ultrasound in emergency) (lung and venous ultrasound for diagnosing acute respiratory failure), the FALLS-protocol (fluid administration limited by lung sonography) (the role of lung sliding in circulatory failure), and the SESAME-protocol (sequential assessment of sonography assessing mechanism or origin of severe shock of indistinct cause) (whole body ultrasound in cardiac arrest). In the LUCIFLR project (LUCI favoring limitation of radiations), the consideration of lung sliding allows drastic reduction in irradiation and costs. In conclusion, lung sliding is proposed as a gold standard for indicating the presence of the lung at the chest wall and its correct expansion.

Lung Ultrasound (in the Critically Ill) Superior to CT: the Example of Lung Sliding / 대한중환자의학회지

This review article shows the potential of lung ultrasound in the critically ill (LUCI) to study lung sliding and describes the optimal equipment for its assessment. Then, it analyses the integration of lung sliding within lung ultrasound then whole body critical ultrasound. It describes the place of lung sliding in the BLUE-protocol (bedside lung ultrasound in emergency) (lung and venous ultrasound for diagnosing acute respiratory failure), the FALLS-protocol (fluid administration limited by lung sonography) (the role of lung sliding in circulatory failure), and the SESAME-protocol (sequential assessment of sonography assessing mechanism or origin of severe shock of indistinct cause) (whole body ultrasound in cardiac arrest). In the LUCIFLR project (LUCI favoring limitation of radiations), the consideration of lung sliding allows drastic reduction in irradiation and costs. In conclusion, lung sliding is proposed as a gold standard for indicating the presence of the lung at the chest wall and its correct expansion.

The research of the relationship between sliding length of the sliding hiatal hernia and gastroe-sophageal reflux disease / 临床外科杂志

Gastroesophageal reflux disease and sliding hiatal hernia are chronic disease,and sometimes there are not typical clinical symptoms.Patients don't have enough cognition or put enough em-phasis on it.Determining the sliding length of the sliding hiatal hernia and gastroesophageal reflux disease respectively by means of high resolution manometry and 24 hour pH monitoring,in turn,analyzing the rela-tionship between sliding length of the sliding hiatal hernia and gastroesophageal reflux disease.

Analysis of the dosimetry differences between peripheral early stage non-small cell lung cancer (NSCLC) treated with SBRT technique / 中华放射肿瘤学杂志

Objective To explore the dosimetric difference between different radiotherapy technologies in the treatment of early peripheral stage non?small ?cell lung cancer ( NSCLC ) . Methods Four?dimensional computed tomography scans and delineation of target volumes and organs at risk ( OARs) were performed in 5 patients pathologically diagnosed with stage T1/T2 peripheral NSCLC who were admitted from 2014 to 2015. Target volumes contained gross tumor volume (GTV), internal target volume (ITV), and planning target volume (PTV). ITV was contoured on the maximum intensity projection images. PTV was defined as ITV plus a 5 mm margin. OARs contained the heart, lung, esophagus, and spinal cord. The Monaco 5. 0 treatment planning system was used to design three plans. The three?dimensional conformal radiotherapy (3DCRT) plan had 11 fields in the diseased lung covering the PTV plus a 0. 2 cm margin. The sliding window intensity?modulated radiotherapy ( SW?IMRT ) plan had 9 fields in the same areas as the 3DCRT plan. The volumetric modulated arc therapy ( VMAT) plan had the gantry rotating 180° around the diseased lung. The evaluation criteria referred to the RTOG 0618 trial. Comparison was made by paired t test. Results The SW?IMRT plan had a significantly better homogeneity index than the 3DCRT plan ( 1. 03 vs. 1. 24,P= 0. 017 ) . Compared with the VMAT plan, the mean monitor units in the 3DCRT plan was significantly reduced by 24. 5%( P=0. 022) . The V30 and V40 of the 3DCRT plan were significantly reduced by 29. 4% and 28. 4%, respectively, compared with the SW?IMRT plan ( P=0. 003,0. 006) and 56. 7%and 59. 7%, respectively, compared with the VMAT plan ( P=0. 041,0. 019) . Conclusions 3DCRT may be an appropriate radiotherapy method for early stage NSCLC.