A comparison of arthroscopy combined with continuous irrigation, arthroscopic debridement alone, and open arthrotomy for the treatment of septic arthritis of the native knee.

Background: The optimal surgical treatment for septic arthritis of the knee remains debatable, with few studies comparing different arthroscopic techniques. Furthermore, no study has simultaneously compared arthroscopy combined with continuous irrigation, arthroscopic debridement alone, and open arthrotomy. This study compared the efficacy and success rates of these three surgical methods and analyzed the risk factors for failure following initial surgery.

Efficacy of platelet-rich plasma use as an adjunctive treatment in autologous osteochondral transplantation for patients with osteochondral lesions of the talus accompanied by chronic lateral ankle instability.

Background: Autologous osteochondral transplantation (AOT) combined with biological agents is an advanced technique for treating osteochondral lesions. Therefore, this study aimed to explore the effect of combining platelet-rich plasma (PRP) treatment with AOT on postoperative functional and magnetic resonance imaging (MRI) outcomes in patients with osteochondral lesions of the talus (OLTs) accompanied by chronic lateral ankle instability (CLAI).

Methods: This retrospective study had a minimum follow-up period of 1 year.

Site-specific and seasonal variation in habitat use of Eurasian otters ( ) in western China: implications for conservation.

As a top predator, the Eurasian otter ( ) is an indicator of healthy freshwater ecosystems and a flagship species for conservation. Once widespread in China, the species is now distributed mainly in the upper reaches of the great rivers of western China. However, a lack of knowledge on local otter populations continues to hinder their conservation in China.

Repair of Bone Defects With Endothelial Progenitor Cells and Bone Marrow-Derived Mesenchymal Stem Cells With Tissue-Engineered Bone in Rabbits.

Purpose: This study aimed to investigate the repair of bone defects in rabbits with tissue-engineered bones using cocultured endothelial progenitor cells (EPCs) and bone marrow mesenchymal stem cells (BMSCs) as seeding cells.

Methods: Endothelial progenitor cells and BMSCs were isolated and purified from the peripheral blood and bone marrow, respectively, of New Zealand rabbits. The third passage of BMSCs was cultured alone or with EPCs.

Discovery of first active breeding den of Chinese mountain cat ( ).

In mid-September 2018, during a field survey in Chiat'ung, Sanjiangyuan (Three-River-Source) Region, Tibetan Plateau, China, we discovered the first active breeding den of the Chinese mountain cat (), inhabited by one adult female and two kittens. Based on fieldwork over the following months, five breeding dens were discovered, and 33 sightings were recorded. In addition, at least five individuals were confirmed to inhabit this overlooked region, and much previously unknown information concerning this cat species and its ecology was revealed for the first time.

Ultrasound diagnosis of intramural pregnancy.

Intramural pregnancy is a rare type of ectopic pregnancy, where the gestational sac is implanted inside the myometrium instead of the endometrial and fallopian tubes. Preoperative diagnosis remains very difficult. Ultrasonic findings vary according to the anatomical location or duration of pregnancy.

Real-Time Elastography Visualization and Histopathological Characterization of Rabbit Atherosclerotic Carotid Arteries.

To evaluate the feasibility of non-invasive vascular real-time elastography imaging (RTE) in visualizing the composition of rabbit carotid atherosclerotic plaque as determined by histopathology, a rabbit model of accelerated carotid atherosclerosis was used. Thirty rabbits were randomly divided into two groups of 15 rabbits each. The first group was fed a cholesterol-rich diet and received balloon-induced injury the left common carotid artery endothelium, whereas the second group only received a cholesterol-rich diet.

Three-dimensional transvaginal tomographic ultrasound imaging for cervical cancer staging.

The objective of this study was to investigate the feasibility of using 3-D transvaginal tomographic ultrasound imaging (TUI) to stage patients with cervical carcinoma. Eighty women with cervical cancer who underwent transvaginal TUI examinations were enrolled. In all patients, cancer was confirmed pre-operatively by pathologic examination.

Arachidonate 5-lipoxygenase-activating protein (ALOX5AP) gene rs4073259 polymorphism not associated with ischemic stroke in the northeastern Chinese Han population.

Objective: Although recent evidence has implicated that 5-lipoxygenase activating protein (ALOX5AP) gene is associated with ischemic stroke (IS) risk, the underlying molecular mechanism remains to be defined. This study aimed to investigate the role of ALOX5AP rs4073259 in ischemic stroke in a Northeastern Chinese Han population.

Methods: A total of 501 IS patients and 497 healthy controls were enrolled for polymerase chain reaction (PCR) and ligase detection reaction (LDR) analysis of ALOX5AP rs4073259 single nucleotide polymorphism (SNP).

[Establishment and experimental study of alveolar preservation before dental implantation in Beagle dogs].

Purpose: To establish the model of alveolar ridge preservation after tooth extraction for dental implant replacement, and to observe the effect of tissue engineered bone on osseointegration.

Methods: Isolated BMSCs were expanded and osteogenically induced in vitro. The tissue engineering complex was constructed with BMSCs/A-PCPC in vitro.

Coculture of vascular endothelial cells and adipose-derived stem cells as a source for bone engineering.

The interaction between vascular endothelial cells (VECs) and osteoblasts (OBs) is the focus of this recent research. Vascular endothelial cells secrete bone morphogenetic protein, which promotes OB differentiation and stimulates OBs and their precursor cells to secrete vascular endothelial growth factor. Vascular endothelial growth factor is important in angiogenesis and angiopoiesis.

[Experimental study of subcutaneous osteogenesis by bone marrow stromal cells with A-PCPC in Beagle dogs].

Purpose: To study the osteogenic capability of the construct combined dog's bone stromal cells with active porous calcium phosphate cement (A-PCPC) in nude mice in vivo.

Methods: Isolated bone marrow stromal cells (BMSCs) were expanded and osteogenically induced in vitro. Their osteogenic phenotype was evaluated by cytochemistry.

A follow-up study of arthroscopic combined reconstruction of anterior and posterior cruciate ligaments with allograft patellar tendon.

Objective: To evaluate the therapeutic effect of combined reconstruction of anterior cruciate ligament (ACL) and posterior cruciate ligament (PCL) simultaneously by using allograft patellar tendon under arthroscopy.

Methods: From May 2003 to November 2005, 10 cases of ruptured ACL and PCL were fixated with compressed screws and reconstructed under arthroscopy with allograft patellar tendon simultaneously. The clinical results were evaluated according to IKDC, Lysholm, and Tegner clinical rating scales.

[Bone-patellar tendon-bone graft in anterior cruciate ligament reconstruction: allograft versus autograft].

Objective: To evaluate the clinical result of arthroscopic anterior cruciate ligament (ACL) reconstruction with either allo- or auto- bone-patellar tendon-bone (B-PT-B) grafts.

Methods: From February 2002 to January 2006, 142 of 187 cases of ACL ruptures who received ACL reconstruction with B-PT-B grafts were studied retrospectively. There were 93 male and 49 female whose age was from 15 to 57 years (mean 26 years).