Inorganic Acid Resistance Performances of Magnesium Phosphate Cement: A Two-Year Observation.

Magnesium phosphate cement (MPC), a cementitious material that hardens through an acid-base reaction, is theoretically expected to exhibit strong acid resistance. However, studies on the durability of MPC in acidic environments remain limited. This study aims to systematically evaluate the acid resistance of MPC in common inorganic acid solutions across various pH levels.

Mesenchymal Stem Cells Injection Is More Effective Than Hyaluronic Acid Injection in the Treatment of Knee Osteoarthritis With Similar Safety: A Systematic Review and Meta-Analysis.

Purpose: To evaluate the efficacy and safety of intra-articular injection of mesenchymal stem cells (MSCs) versus hyaluronic acid (HA) in the treatment of knee osteoarthritis (KOA).

Methods: Eligible randomized controlled trials (RCTs) were identified through a search of PubMed, Embase, the Cochrane Library, Web of Science, SinoMed, and CNKI databases from inception to March 2024. For meta-analysis, data on clinical outcomes were measured using visual analog scale (VAS) and the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), and data on cartilage repair were measured using the Whole-Organ Magnetic Resonance Imaging Score (WORMS); data on safety were evaluated by the incidence of adverse events.

Construction of a predictive nomogram for functional recovery after Bernese periacetabular osteotomy.

Background And Purpose: Surgical indications for Bernese periacetabular osteotomy (PAO) are well-established. However, the extent of postoperative functional recovery varies widely, as observed in clinical follow-ups. Thus, preoperative evaluation is crucial.

Development and Promotion of Concrete Strength at Initial 24 Hours.

Knowing and promoting the strength development of concrete at an earlier age is essential for accelerating formwork circulation of the on-site construction and precast product manufacture. The strength development rate at earlier ages of less than the initial 24 h was investigated. The effect of measures of adding silica fume, calcium sulfoaluminate cement, and early strength agent on the strength development of earlier concrete at ambient temperatures of 10, 15, 20, 25, and 30 °C was studied.

The effectiveness and influencing factors of the "Y" line technique in reducing the leg length discrepancy after total hip arthroplasty.

Objective: To introduce a surgical technique (the "Y" line technique) that will control leg length discrepancy (LLD) after total hip arthroplasty and to observe its effectiveness and influencing factors.

Methods: According to the inclusion and exclusion criteria, a total of 350 patients were selected in this study; 134 patients in whom used the "Y" line technique was used to control lower limb length were included in Group A and 166 patients treated with freehand methods to control lower limb length were included in Group B. A total of 50 patients in whom the standard anteroposterior x-ray of bilateral hips was taken preoperatively and in whom the "Y" line technique was used during the operation were included in Group C.

Analysis of Factors Affecting Early Functional Recovery of Bernese Periacetabular Osteotomy.

Objectives: To explore factors affecting the efficacy of Bernese periacetabular osteotomy for the treatment of hip dysplasia.

Methods: A retrospective study was conducted on 44 patients with hip dysplasia who underwent Bernese periacetabular osteotomy with a modified Smith-Peterson approach between January 2017 and November 2019. Among them, 40 were women and four were men.

Additive Effects of VDBP and 1,25(OH)2D3 on the Viability and Apoptosis of Rheumatoid Arthritis Synovial Fibroblasts.

Aim: This study is to investigate the additive effect of Vitamin D-binding protein (VDBP) and 1,25(OH)2D3 on the viability and apoptosis of synovial cells from patients with rheumatoid arthritis (RA).

Methods: Synovial tissues and synovial fluid of patients with RA and osteoarthritis (OA) were collected. The expression of VDBP was analyzed with immunohistochemistry and ELISA.

IgMCD27 B cells possessed regulatory function and represented the main source of B cell-derived IL-10 in the synovial fluid of osteoarthritis patients.

Synovial inflammation is observed in patients with osteoathritis (OA) and likely contributed to its exacerbation. Regulatory B (Breg) cells are shown to suppress inflammation in various diseases, including rheumatoid arthritis (RA). To examine whether Breg cells also participated in OA, we examined the synovial fluid from OA patients, and compared with that in RA patients.

1,25-Dihydroxyvitamin D3 attenuates disease severity and induces synoviocyte apoptosis in a concentration-dependent manner in rats with adjuvant-induced arthritis by inactivating the NF-κB signaling pathway.

An aggressive proliferation of synoviocytes is the hallmark of rheumatoid arthritis (RA). Emerging evidence shows that inhibiting the NF-κB signaling pathway with 1,25-dihydroxyvitamin D3 [1,25(OH)2D3] may be a therapeutic approach for controlling inflammatory diseases. In this study, we demonstrated the protective effects of three different 1,25(OH)2D3 concentration on adjuvant-induced arthritis (AA) rats through the NF-κB signaling pathway and their pro-apoptotic roles in cultured adjuvant-induced arthritis synoviocytes (AIASs).

The barbed suture of deep fascia walks away and pierces through skin far from the incision - a case report.

Barbed suture has been widely used in surgeries. However, this technique may raise many problems. Here, we report that the barbed suture of deep fascia walks away and pierces through skin far from the incision in a 61-year-old male 6 weeks after total hip arthroplasty.

Exposing the transverse acetabular ligament in the presence of large floor osteophytes in primary total hip arthroplasty.

Background/objective: The transverse acetabular ligament (TAL) can be used to position the acetabular cup and may help to improve the accuracy of primary total hip arthroplasty (THA). However, because the TAL may be covered by osteophytes, the ability to find the TAL varies greatly in the reported literature. In the present study, we introduce 2 methods and make a comparison between them to identify the easier procedure for finding an osteophyte-covered TAL.

Downregulation of IL-10 secretion by Treg cells in osteoarthritis is associated with a reduction in Tim-3 expression.

Knee osteoarthritis (OA) is the most common cause of musculoskeletal pain and disability in the knee. Though traditionally thought a mechanical wear-and-tear disease, in recent years, knee OA as a low-grade, chronic inflammatory disease has been increasingly recognized. In this study, we examined the Treg responses in non-obese knee OA patients at different stages.

TIM-3 Genetic Variations Affect Susceptibility to Osteoarthritis by Interfering with Interferon Gamma in CD4+ T Cells.

Osteoarthritis (OA) is the most common type of arthritis, in which T cell responses and cytokines may play critical roles in the development of the disease. TIM-3 may affect immune responses and is correlated with decreased expression of interferon gamma (INF-γ) in CD4+ T cells. In the current study, we investigated the association between polymorphisms in the TIM-3 gene and susceptibility to OA.

Expression of TIM-3 on CD4+ and CD8+ T cells in the peripheral blood and synovial fluid of rheumatoid arthritis.

Rheumatoid arthritis (RA) is characterized by a chronic inflammatory process that targets the synovial lining of diarthrodial joints. TIM-3 plays a key role in the negative regulation of the immune response. In this study, we investigated the expression of TIM-3 on CD4+ and CD8+ T cells from systemic (peripheral blood) and local (synovial fluid) perspectives of RA.

Arthroscopic ankle arthrodesis in hemophilic arthropathy.

Background: Ankle arthrodesis is an accepted treatment for patients with advanced disabling tibiotalar arthritis, mostly in osteoarthritis, rheumatoid, and posttraumatic arthritis. No detailed reports have been published regarding the use of arthroscopy for the treatment of the end-stage hemophilic ankle. The purpose of this article is to report the results of arthroscopic ankle arthrodesis in hemophilic arthropathy of the ankle.