Guoyou Zhang

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BACKGROUND Concerns have been raised regarding minimally invasive surgery (MIS) and its possible effect on postoperative functional recovery, complications, and survival rate after TKA. QUESTIONS/PURPOSES We specifically asked whether MIS TKA would be associated with (1) increased operative time, (2) reduced blood loss, (3) shortened hospital stay, (4)(More)
Electrical impedance spectroscopy (EIS) was applied to stems of Scots pine (Pinus sylvestris L.) in a provenance field trial during frost hardening to find an EIS parameter for assessing frost hardiness (FH) without a controlled freezing test. The FH of stems and needles assessed by controlled freezing tests was compared with the equivalent circuit EIS(More)
OBJECTIVE Bibliometric studies concerning the quantity and quality of articles published in rheumatology journals are scarce. This study aims to compare scientific production in the field of rheumatology between countries and evaluate the publication trend and citations worldwide. METHODS Articles published in 39 rheumatology journals from 1996 to 2010(More)
BACKGROUND The aim of computer-assisted surgery is to improve accuracy and limit the range of surgical variability. However, a worldwide debate exists regarding the importance and usefulness of computer-assisted navigation for total knee arthroplasty (TKA). The main purpose of this study is to summarize and compare the radiographic outcomes of TKA performed(More)
BACKGROUND The conventional treatment for displaced intraarticular fractures of the calcaneus (DIACF), with open reduction and internal plate fixation (ORIF), carries the risk of wound infection and delayed recovery. Alternatively percutaneous fixation techniques offer the possibility of equivalent outcomes in with a reduction in soft tissue complications.(More)
The classic dynamic hip screw fixation of intertrochanteric fractures may be associated with significant blood loss and soft tissue damage, which may worsen existing comorbidities of frail elderly patients. Recently, minimally invasive dynamic hip screw (MIDHS) technique was developed for osteosynthesis of intertrochanteric fractures. A highly sensitive(More)
Plate fixation, the conventional treatment for traumatic symphysis pubis diastasis, carries the risk of extensive exposure, blood loss and postoperative infections. Percutaneous screw fixation is a minimally invasive treatment. The goal of the present study was to compare the outcome of plate fixation and percutaneous screw technique in the treatment of(More)
PURPOSE The use of computer navigation systems in anterior cruciate ligament (ACL) has been the subject of debate. However, there is a lack of systematic review to analyze the radiographic outcomes after computer-navigated ACL reconstruction. METHODS We searched, in duplicate, Medline, Embase, and Web of Science databases for randomized controlled trials(More)
Akt plays an important role in the inhibition of apoptosis induced by chemotherapy and other stimuli. We therefore investigated if knockdown of Akt2 promoted drug-induced apoptosis in cultured osteosarcoma cells in vitro. SAOS-2 cells were transfected with Akt2 siRNA. The sensitivity of the transformed cell line to the chemotherapeutic drug cisplatin was(More)
BACKGROUND Mixed hematopoietic chimerism via bone marrow transplantation has been shown to induce donor specific tolerance to solid organ allografts, but graft versus host disease (GVHD) remains to be a risk. Composite tissue allografts may need a higher percentage of donor chimerism compared with less immunogenic solid organ allografts. In this study, we(More)