Tibial plateau fracture is a fracture involving the proximal articular surface of the tibia, and its injury mechanism is complex, the fracture morphology is different, and it is often accompanied by different degrees of soft tissue injury, which is difficult to diagnose and treat. In recent years, the research hotspot has focused on solving the reduction and fixation of the posterior lateral column of the tibial plateau, because it has been clinically found that the residual sagittal plane after tibial plateau fracture is insufficient reduction or loss of reduction leads to knee joint dysfunction. The posterior inclination angle of the tibial plateau is an important parameter to describe the sagittal alignment of the tibia. In the natural state, the posterior tibial slope(PTS) is altered to involve the soft tissues around the knee joint such as anterior cruciate ligament(ACL) and posterior cruciate ligament(PCL), which affects the stability of the knee joint. In total knee arthroplasty(TKA), choosing the appropriate PTS can effectively increase the prosthesis survival rate, improve the flexion and extension knee efficacy, which is beneficial to knee joint stability. In the field of orthopedic trauma, correction of sagittal deformity is equally important, following the principle of "reverse mechanism of injury". Quantitative evaluation of postoperative sagittal realignment of tibial plateau fractures and investigation of the effect of sagittal realignment on long-term outcomes and complications are still poorly understood and require further clinical and biomechanical studies.
Humans ; Tibial Fractures/physiopathology* ; Fracture Fixation, Internal/methods* ; Tibial Plateau Fractures

OBJECTIVE: To analyze the clinical efficacy of manual reduction combined with 3D printing small splint external fixation and synchronous manual reduction combined with traditional small splint external fixation in the treatment of humeral shaft. METHODS: Between January 2021 and December 2022, 40 patients with humeral shaft fractures were treated with 3D printing small splints and traditional small splints. They were divided into 3D group and traditional group according to different fixation methods. Among them, there were 15 males and 5 females in the 3D group, aged from 20 to 52 years old with an average of (36.3±15.6) years old. In the traditional group there were 17 males and 3 females, aged from16 to 51 years old with an average of (32.9±17.2) years old. The occurrence of complications, duration of fracture healing, rate of fracture healing, subjective evaluation scores for brace comfort at 1 week and 4 weeks, as well as the Constant-Murley shoulder function score and Mayo elbow function score at 8 weeks and 16 weeks were compared between the two groups. RESULTS: All patients were followed up for 16 weeks. The 3D group did not experience any complications, while there were two cases of complications in the traditional group. However, this difference was not found to be statistically significant (χ²=2.105, P=0.146). The fracture healing time of the 3D group (90.1±4.5) days was significantly shorter compared to that of the traditional group (93.3±3.8) days (P<0.05). The subjective evaluation scores for brace comfort in the 3D group (53.7±2.3) points and (62.8±1.1) points were significantly higher than those in the traditional group (45.6±2.4) points and (52.3±1.4) points at 1 and 4 weeks after reduction (P<0.05). After 8 weeks of reduction, the Constant-Murley shoulder function score in the 3D group was(68.1±5.3) points, which demonstrated a statistically significant improvement compared to the traditional group(54.3±4.9) points (P<0.05). However, at 16 weeks post-reduction, there were no significant differences observed between the two groups (P>0.05). The Mayo elbow function score of the 3D group (84.1±7.5) points was significantly superior to that of the traditional group (79.5±6.8) points at 8 weeks post-reduction (P<0.05). However, there was no statistically significant difference between the two groups at 16 weeks post-reduction (P>0.05). CONCLUSION For humeral shaft fractures with conservative treatment indications, manual reduction combined with 3D printed small splints is a good choice for treatment. The patient's comfort level is higher, which can not only reduce the occurrence of complications, but also improve the fracture healing rate and joint function to a certain extent, and improve the patient's quality of life.
Humans ; Female ; Male ; Adult ; Middle Aged ; Humeral Fractures/physiopathology* ; Printing, Three-Dimensional ; Splints ; Adolescent ; Young Adult ; Fracture Healing

A precursor ion selection (PIS) based ultra high performance liquid chromatography-quadrupole time of flight mass spectrometry (UHPLC-Q-TOF-MS) analytical method was used to screen the chemical components in Jiawei Dingzhi pills (JWDZP) comprehensively and rapidly. To compile the components of the compound medicine, a total of 1 921 components were found utilizing online databases and literature. After verifying the sources, unifying the component names, merging the multi-flavor attributed components, and removing the weak polar molecules, 450 components were successfully retained. The Acquity UPLC HSS T3 column (100 mm × 2.1 mm, 1.8 μm) was used, with a 0.1% formic acid water (A)-acetonitrile (B) as the mobile phase. The flow rate was 0.35 mL·min^-1, the column temperature was 35 ℃, and an electrospray ion source was used. Data was collected with the PIS strategy in both positive and negative ion modes. Compounds were screened through matching accurate molecular weight of the database, and identified according to MS/MS data (characteristic fragment ions and neutral loss), with comparison of reference. Some compounds were confirmed using standard products. A total of 176 compounds were screened out in the extract of JWDZP, among which 26 compounds were confirmed by standard products. These compounds include 96 components from the sovereign drug, and 34 coefflux components with low ion intensity. The PIS-UHPLC-Q-TOF-MS/MS method established in this study can quickly and comprehensively screen the chemical components of JWDZP, which enhanced the screening rate of components with co-elution compounds of low ion intensities and provided a basis for the study of the material foundation of JWDZP.

The relevant state departments issued a series of cost accounting systems,and put forward three disease cost accounting methods:project superposition method,service unit superposition method and parameter allocation method.Among them,parameter allocation method is not paid attention to in the theory and practice of hospital disease cost accounting.Based on the literature research,it clarifies the related concepts of disease cost accounting based on parameter allocation method,combs and summarizes the characteristics,accounting models and existing problems of disease cost accounting at home and abroad at present,and discusses the optimization and improvement path in order to promote the further improvement and popularization of this method and accelerate the extensive practical application of accounting results.

Three-dimensional ordered porous carbon materials exhibit potential application prospects as excellent drug supports in drug delivery systems due to their high specific surface area, tunable pore structure, and excellent biocompatibility. In this study, three-dimensional ordered porous carbon materials were prepared using Acanthopanax senticosus herbal residues as raw material and KOH as activating agent through a one-step pyrolysis method. The prepared carbon-based material was systematically characterized by powder X-ray diffraction, scanning electron microscopy, N₂ adsorption-desorption and Fourier-transform infrared spectroscopy. The results show that the three-dimensional ordered porous carbon materials prepared with KOH as the activator via pyrolysis possess abundant functional groups, high porosity, and high specific surface area, with a specific surface area of 1 471.6 m²·g^-1. The three-dimensional ordered porous carbon materials prepared at 800 ℃ exhibits a high drug loading capacity (78.0%) and drug release rate (86.8%) for 5-fluorouracil. Three-dimensional orderly porous carbon materials show significant application advantages in drug construction, and their high specific surface area and adjustable pore size structure significantly improve the drug load rate and drug release rate, providing a solid foundation for the development of efficient and accurate drug delivery system.

The relevant state departments issued a series of cost accounting systems,and put forward three disease cost accounting methods:project superposition method,service unit superposition method and parameter allocation method.Among them,parameter allocation method is not paid attention to in the theory and practice of hospital disease cost accounting.Based on the literature research,it clarifies the related concepts of disease cost accounting based on parameter allocation method,combs and summarizes the characteristics,accounting models and existing problems of disease cost accounting at home and abroad at present,and discusses the optimization and improvement path in order to promote the further improvement and popularization of this method and accelerate the extensive practical application of accounting results.

The relevant state departments issued a series of cost accounting systems,and put forward three disease cost accounting methods:project superposition method,service unit superposition method and parameter allocation method.Among them,parameter allocation method is not paid attention to in the theory and practice of hospital disease cost accounting.Based on the literature research,it clarifies the related concepts of disease cost accounting based on parameter allocation method,combs and summarizes the characteristics,accounting models and existing problems of disease cost accounting at home and abroad at present,and discusses the optimization and improvement path in order to promote the further improvement and popularization of this method and accelerate the extensive practical application of accounting results.

The relevant state departments issued a series of cost accounting systems,and put forward three disease cost accounting methods:project superposition method,service unit superposition method and parameter allocation method.Among them,parameter allocation method is not paid attention to in the theory and practice of hospital disease cost accounting.Based on the literature research,it clarifies the related concepts of disease cost accounting based on parameter allocation method,combs and summarizes the characteristics,accounting models and existing problems of disease cost accounting at home and abroad at present,and discusses the optimization and improvement path in order to promote the further improvement and popularization of this method and accelerate the extensive practical application of accounting results.

The relevant state departments issued a series of cost accounting systems,and put forward three disease cost accounting methods:project superposition method,service unit superposition method and parameter allocation method.Among them,parameter allocation method is not paid attention to in the theory and practice of hospital disease cost accounting.Based on the literature research,it clarifies the related concepts of disease cost accounting based on parameter allocation method,combs and summarizes the characteristics,accounting models and existing problems of disease cost accounting at home and abroad at present,and discusses the optimization and improvement path in order to promote the further improvement and popularization of this method and accelerate the extensive practical application of accounting results.

The relevant state departments issued a series of cost accounting systems,and put forward three disease cost accounting methods:project superposition method,service unit superposition method and parameter allocation method.Among them,parameter allocation method is not paid attention to in the theory and practice of hospital disease cost accounting.Based on the literature research,it clarifies the related concepts of disease cost accounting based on parameter allocation method,combs and summarizes the characteristics,accounting models and existing problems of disease cost accounting at home and abroad at present,and discusses the optimization and improvement path in order to promote the further improvement and popularization of this method and accelerate the extensive practical application of accounting results.