Soy Protein Adhesive Enhanced Through Supramolecular Interaction with Tannic Acid Modified Montmorillonite.

The use of soybean meal (SM) as an alternative to petroleum-based resins in wood-based panels offers a solution to the problem of formaldehyde release. However, inherent drawbacks of soybean meal adhesives, such as poor toughness, low bond strength, and susceptibility to mold, have hindered their further development. In this study, a novel biomass adhesive, SM-MMT@TA, was developed based on supramolecular interactions between tannic acid (TA), montmorillonite (MMT), and soybean meal.

The Physical and Psychological Effects of Telerehabilitation-Based Exercise for Patients With Nonspecific Low Back Pain: Prospective Randomized Controlled Trial.

Background: Physical therapy has demonstrated efficacy in managing nonspecific low back pain (NLBP) among patients. Nevertheless, the prevalence of NLBP poses a challenge, as the existing medical infrastructure may be insufficient to care for the large patient population, particularly in geographically remote regions. Telerehabilitation emerges as a promising method to address this concern by offering a method to deliver superior medical care to a greater number of patients with NLBP.

A Novel growth guidance system for early onset scoliosis: a preliminary in vitro study.

Purpose: The purpose of the study was to describe a novel growth guidance system, which can avoid metal debris and reduce the sliding friction forces, and test the durability and glidability of the system by in vitro test.

Method: Two major modifications were made to the traditional Shilla system, including the use of ultra-high molecular weight polyethylene (UHMWPE) gaskets to avoid direct contact between the screw and rod, and polishing the surface of the sliding part of the rod. We tested the durability of the system by a fatigue test, which the samples were test on the MTS system for a 10 million cycle of a constant displacement.

[Retracted] NR4A1 promotes TNF‑α‑induced chondrocyte death and migration injury via activating the AMPK/Drp1/mitochondrial fission pathway.

Following the publication of this paper, it was drawn to the Editor's attention by a concerned reader that fluorescence microscopy data shown in Fig. 2C were strikingly similar to data appearing in different form in Fig. 3G in a previously published paper by different authors at different research institutes [Jieensinue S, Zhu H, Li G, Dong K, Liang M and Li Y: Tanshinone IIA reduces SW837 colorectal cancer cell viability via the promotion of mitochondrial fission by activating JNK‑Mff signaling pathways.

The association between penicillin allergy and surgical site infection after orthopedic surgeries: a retrospective cohort study.

Background: Cephalosporins are used as first-line antimicrobial prophylaxis for orthopedics surgeries. However, alternative antibiotics are usually used in the presence of penicillin allergy (PA), which might increase the risk of surgical site infection (SSI). This study aimed to analyze the relationship between SSI after orthopedic surgeries and PA among surgical candidates and related alternative antibiotic use.

A Retrospective, Long-term Follow-up of the Clinical Outcomes and Cost-effectiveness of Single-anesthetic Multiple Total Joint Procedures in Hemophilic Arthropathy.

Objective: Although total joint replacement (TJR) procedures are efficacious, perioperative high-dose factors replacement therapy (FRT) to avoid catastrophic bleeding represents a significant hurdle, particularly for patients with multiple joint affection. Double simultaneous bilateral TJRs were reported as safe and cost-effective. However, little is known about multiple TJRs.

Association Between Constipation and a Reduction in Lower Limb Muscle Strength in Preoperative Patients with Thoracic Spinal Tumors.

Objective To investigate the clinical symptoms experienced by patients with thoracic spinal tumors and verify the associated symptoms that are predictive of a decline in muscle strength in the lower limbs. Methods A single-center, retrospective cross-sectional study was conducted on in-patients diagnosed with epidural thoracic spinal tumors between January 2011 and May 2021. The study involved a review of electronic medical records and radiographs and the collection of clinical data.

Long-Term clinical results of patellofemoral arthroplasty for isolated patellofemoral osteoarthritis.

Objectives: The aim of this study was to explore the clinical outcomes and long-term survival of patellofemoral arthroplasty in treatment of isolated patellofemoral osteoarthritis.

Methods: We retrospectively studied a total of 46 type Y-L-Q PFAs that were designed at our institution in 38 patients. Implant survivorship was analyzed with a follow-up of 18.

A Novel Surgical Classification for Extremity and Pelvic Hemophilic Pseudotumors: The PUMCH Classification.

Background: A hemophilic pseudotumor (HPT) is a rare and challenging complication of hemophilia for which there is no classification system that provides uniformity of descriptions or that can be used to guide management. We have developed such a classification based on anatomical site, HPT severity, and corresponding surgical treatment.

Methods: The PUMCH (Peking Union Medical College Hospital) classification was developed on the basis of clinical manifestations and imaging features.

Preoperative Use of Aspirin in Total Knee Arthroplasty: Safe or Not?

Objective: To compare the blood loss, transfusion rates and complications between the aspirin and non-aspirin group in unilateral and bilateral total knee arthroplasties (TKAs) with a nested case-control design.

Methods: The present study retrospectively selected TKA cases from the Joint Arthroplasty Database at the Peking Union Medical College Hospital from January 2014 to December 2019 following strict inclusion and exclusion criteria, and divided them into the aspirin and non-aspirin group based on the use of aspirin preoperatively. Bleeding was measured by blood loss, transfusion rate, drainage volume, hemoglobin (HGB) and hematocrit (HCT), while complications (cardiovascular events, venous thromboembolism events, cerebrovascular events and wound events) were compared between the groups.

Surgical treatment of femoroacetabular impingement in a patient with Stickler syndrome: a case report.

Stickler syndrome is a multisystem connective tissue disorder caused by mutations in collagen genes that can present with craniofacial, ocular, audial, or skeletal abnormalities. Here, we report on a male patient with a missense mutation (c.647G>A; p.

Morphology characters of resected femoral and tibial surface in chinese population: intraoperative anthropometric study in patients at a tertiary hospital.

Backgrounds: Mismatch between knee surface and prosthesis components is related to postoperative complications. Morphological differences between ethnicity and gender may affect prosthesis coverage. The purpose of this study is to describe morphological characters of resected knee surface (distal femur, proximal tibia) in the Chinese population, analyze the influence of gender and other demographical factors, and validate the effect of ethnic difference by calculating the coverage of Western-designed knee prostheses on Chinese knee surface.

The Effect of a Local Injection of Flurbiprofen Ester Microspheres on Systemic Inflammatory Model Rats With a Closed Femoral Shaft Fracture.

Periarticular injections with a combination of local anesthetics, non-steroidal anti-inflammatory analgesics (NSAIDs), and epinephrine are becoming increasingly popular in the perioperative analgesia of artificial joint replacement. However, data on the efficacy and safety of local injection NSAIDs are still scarce. The purpose of this study was to investigate the efficacy and safety of a local injection of Flurbiprofen Ester Lipid microspheres into the inflammatory model of femoral shaft closed fractures in rats.

Glomus tumors around or in the knee: a case report and literature review.

Background: Glomus tumors commonly affect the extremities, especially subungual. And glomus tumors rarely occur around knee, which are often misdiagnosed. A lack of experience with glomus tumors is likely the cause.

Layered Double Hydroxide Modified Bone Cement Promoting Osseointegration Multiple Osteogenic Signal Pathways.

Poly(methyl methacrylate) (PMMA) bone cement has been widely used in orthopedic surgeries including total hip/knee replacement, vertebral compression fracture treatment, and bone defect filling. However, aseptic loosening of the interface between PMMA bone cement and bone often leads to failure. Hence, the development of modified PMMA that facilitates the growth of bone into the modified PMMA bone cement is key to reducing the incidence of aseptic loosening.

Risk-Stratified Venous Thromboembolism Prophylaxis after Total Joint Arthroplasty: Low Molecular Weight Heparins and Sequential Aspirin vs Aggressive Chemoprophylaxis.

Objective: Venous thromboembolism (VTE) is a significant concern post total joint arthroplasty (TJA). However, the optimal prevention method of VTE remains controversial at present. This study aims to evaluate a risk-stratified VTE prophylaxis protocol for patients undergoing TJA.

Glomus tumors associated with the bone and joints: a review of 91 cases.

Background: Glomus tumors (GTs) commonly affect the subungual soft tissue but rarely affect the bone and joints. Meanwhile, GTs associated with the bone and joints have been misdiagnosed for decades.

Methods: The PubMed, Embase, and Web of Science databases were searched, and primary data extracted from selected articles were quantitively analyzed.

Usefulness of a Simple Preoperative Planning Technique using Plain X-rays for Direct Anterior Approach for Total Hip Arthroplasty.

Objective: To examine the accuracy, reliability, and reproducibility of a simple preoperative planning technique using plain X-rays.

Methods: A retrospective analysis of 96 consecutive cases of primary direct anterior approach (DAA)-total hip arthroplasty (THA) from July 2015 to December 2018 was performed. The 96 patients included 24 males and 72 females, with an average age of 70 years.

Biological evaluation of bone substitute.

Critical-sized defects (CSDs) caused by trauma, tumor resection, or skeletal abnormalities create a high demand for bone repair materials (BRMs). Over the years, scientists have been trying to develop BRMs and evaluate their efficacy using numerous developed methods. BRMs are characterized by osteogenesis and angiogenesis promoting properties, the latter of which has rarely been studied in vitro and in vivo.

Complications of total knee arthroplasty in patients with haemophilia compared with osteoarthritis and rheumatoid arthritis: A 20-year single-surgeon cohort.

Introduction: Patients with haemophilia are prone to haemophilic arthropathy (HA). For end-stage HA, total knee arthroplasty (TKA) is an effective procedure. However, limited data were available regarding complications of TKA in HA patients.

Magnesium-based layered double hydroxide nanosheets: a new bone repair material with unprecedented osteogenic differentiation performance.

Osteonecrosis of femoral head (ONFH) has been one of the most common diseases, and thus the development of novel biomaterials with superior osteogenic ability is the key issue. In this work, Yb-containing MgAl-layered double hydroxide (LDH) monolayer nanosheets (MgAlYb-LDHs) were designed and synthesized and were used as a new biomaterial with outstanding osteogenic differentiation ability. The LDH monolayer nanosheets gave a high loading content (LC) of 197% for alendronate (AL) with an encapsulation efficiency (EE) of 98.

Artificial Intelligence-Assisted System in Postoperative Follow-up of Orthopedic Patients: Exploratory Quantitative and Qualitative Study.

Background: Patient follow-up is an essential part of hospital ward management. With the development of deep learning algorithms, individual follow-up assignments might be completed by artificial intelligence (AI). We developed an AI-assisted follow-up conversational agent that can simulate the human voice and select an appropriate follow-up time for quantitative, automatic, and personalized patient follow-up.

Structural and tribological characteristics of ultra-low-wear polyethylene as artificial joint materials.

Ultra-low-wear polyethylene (ULWPE) is a new metallocene catalyzed high density polyethylene (HDPE)material. Previous studies have demonstrated that it has excellent biocompatibility and wear resistance, whereupon indicating great potential in the applications to artificial joints. However, as a newly developed material, its tribological behavior and wear resistance mechanism has not been well understood.