Wenwei Qian

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OBJECTIVE The objective of this study was to evaluate the feasibility of reducing artifacts from large metal implants with gemstone spectral imaging (GSI) and metal artifact reduction software (MARS). METHODS Twenty-three in-vivo cobalt-chromium-molybdenum alloy total hip prostheses were prospectively scanned by fast kV-switching GSI between 80 and 140(More)
OBJECTIVE To explore perioperative management and postoperative effectiveness of hemophilia induced lesions of the foot and ankle. METHODS Between June 1998 and February 2012, 10 cases (12 feet) of hemophilia induced lesions of the foot and ankle were treated with surgery, including 9 cases (11 feet) of hemophilia A and 1 case (1 foot) of hemophilia B.(More)
Glucocorticoids play a pivotal role in the proliferation of osteoblasts, but the underlying mechanism has not been successfully elucidated. In this report, we have investigated the molecular mechanism which elucidates the inhibitory effects of dexamethasone on murine osteoblastic MC3T3-E1 cells. It was found that the inhibitory effects were largely(More)
Avascular necrosis of the femoral head (ANFH) occurs following exposure to corticosteroids, and the proliferative capacity of the mesenchymal stem cells (MSCs) belonging to ANFH was reduced. The previous studies indicate that microRNA (miRNA) has an important regulatory role during proliferation and osteogenic differentiation of MSCs. Therefore, MSCs were(More)
The aim of the present study was to examine the expression levels and role of hsa-miR-15a in osteoarthritis (OA), as well as the associated mechanisms. The expression levels of hsa-miR-15a and A disintegrin-like and metalloprotease (reprolysin type) with thrombospondin type 1 motif, 5 (ADAMTS5, also known as aggrecanase-2) were measured by reverse(More)
PURPOSE The purpose of this study was to determine the relationship between fever, including different patterns of fever, and infection in patients who received total hip arthroplasty or knee arthroplasty (THA or TKA). METHODS Fever was defined as a core body temperature ≥38.0 °C and was further categorized as being (1) consecutive fever (fever lasting(More)
A mock circulatory system (MCS) has been proven a useful tool in the development of a ventricular assist device. Nowadays a MCS aimed at the evaluation of pediatric blood pumps, which require many different considerations compared with that of adults, has become an urgent need. This article presents the details on how the dynamic process of the left(More)
The paper entitled "Direct, cementless, metaphyseal fixation in knee revision arthroplasty with sleeves-short-term results" published in the Journal of Arthroplasty to analyze the short- and mid-term results in revision total knee arthroplasty (TKA) in a largest series so far. This article shown that cementless metaphyseal fixation with sleeves is a(More)
OBJECTIVE To investigate the surgical technique and the clinical results of total knee arthroplasty (TKA) in treating end-stage gonarthrosis combined with valgus knee deformity. METHODS Between November 1998 and October 2010, 64 patients (72 knees) with end-stage gonarthrosis combined with valgus knee deformity underwent TKA by a medial parapatellar(More)