Can Yapici

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Bone tunnel enlargement is a feared complication after ACL reconstruction. The aim of this study was to evaluate whether adding a fibrin clot to the allograft for anatomic single-bundle ACL reconstruction would reduce tunnel widening. Fifty patients who underwent anatomic single-bundle ACL reconstruction were included. Twenty-five patients received an(More)
To investigate the effect of graft fixation sequence in double-bundle anterior cruciate ligament (ACL) reconstruction on knee biomechanics. Twelve mature porcine knees underwent double-bundle ACL reconstruction with a randomized fixation order of the two graft bundles. The knees were subjected to external loadings of (1) an 89 N anterior tibial load at 30°,(More)
Bu makalede, taşıyıcı frekans kaymasının MC-DS-CDMA ve OFDM sistem performanslarına olan etkisi incelenmiştir. Taşıyıcı frekans kaymasının bulunduğu durumda işaretgürültü oranındaki düşüş analitik olarak hesaplanmıştır. Taşıyıcı frekans kayması arttıkça MC-DS-CDMA ve OFDM sistemlerinin performanslarının azaldığı gösterilmiştir. Ayrıca sistem performansının,(More)
The purpose of this study was to evaluate the effects on knee biomechanics of rotating the distal end of the bone-patellar tendon graft 90° in anatomic single-bundle (SB) anterior cruciate ligament (ACL) reconstruction with a porcine model. Twenty (n = 20) porcine knees were evaluated using a robotic testing system. Two groups and three knee states were(More)
The purpose of this study is to compare knee laxity and graft function (tissue force) between anatomic and non-anatomic posterolateral (PL) bundle augmentation. Twelve (n = 12) fresh-frozen mature, unpaired porcine knees were tested using a robotic testing system. Four knee states were compared: (a) intact anterior cruciate ligament (ACL), (b) deficient PL(More)
Notchplasty is frequently performed by many orthopaedic surgeons during anterior cruciate ligament (ACL) reconstruction. The effect of notchplasty on tunnel placement and knee biomechanics with ACL reconstruction is not known. Twelve (n = 12) porcine knees were tested using a robotic testing system. Four knee states were compared: (1) intact ACL, (2)(More)
INTRODUCTION Bilateral femoral neck fractures can occur due to high- or low-energy trauma, in the presence of various predisposing factors, such as osteoporosis, renal osteodystrophy, hypocalcemic seizures, primary or metastatic tumors, electroconvulsive therapy, epileptic seizures, and hormonal disorders. PRESENTATION OF CASE This report presents a case(More)
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