Yazar "Deveci, Mehmet Ali" seçeneğine göre listele

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    Avascular necrosis of the femoral head in sickle cell disease
    (2017) Karakurt, Neslihan; Deveci, Mehmet Ali
    Sickle cell disease (SCD) is a life threatening hemoglobinopathy effecting various systems. SCD is an important health issue in Turkey, especially in the southern areas. The patients suffer from complications resulting from vaso-occlusion and hemolysis. Twenty- two percent of children and 49% of adults with Hb SS are reported to have avascular necrosis (AVN). The SCD panel 2014 recommends to evaluate all children with SCD and hip pain for AVN by history, physical examination, radiography and magnetic resonance imaging. Long term daily oral treatment with hydroxyurea has been shown to reduce complications in SCD. Hydroxyurea does not only increase the level of fetal hemoblobin but also it causes a reduction in the number of circulating leukocytes, increases red blood cell size. Here in two SCD patients who developed AVN in femoral head are reported and it is aimed to raise awareness to this morbidity and the importance of regular use and dosage escalation of hydroxyurea therapy.
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    Longer tourniquet application time during knee surgery decreases the quadriceps muscle strength: a prospective study on 25 consecutive patients underwent total knee arthroplasty
    (2017) Görmeli, Gökay; Sener, Emin Ertuğrul; Şimşek, Sezai Aykın; Deveci, Mehmet Ali; Meray, Jale
    Abstract: The use of tourniquets in total knee arthroplasty (TKA) for patients with knee osteoarthritis is controversial. Although surgical techniques are more easily applied in a shorter time; there are some disadvantages associated with tourniquet use in orthopedic surgery. The aim of this study was to evaluate the effect of the tourniquet time on quadriceps strength by isokinetic muscle strength measurements in patients undergoing TKA. Prospective controlled study. Twenty-five knees of 25 patients with primary degenerative joint disease who underwent TKA were evaluated preoperatively and postoperatively at weeks 6 and 12 and month 6 by isokinetic knee extensor muscle strength testing at and American Knee Society Score (AKSS). The tourniquet time of all patients was recorded, and the preoperative results of all patients were compared with those postoperatively. The mean 60º/s angular velocity quadriceps peak torque was significantly lower postoperatively in patients with a longer tourniquet time. Isokinetic tests showed a significant negative correlation between the tourniquet time and mean muscle strength (week 6: r = –0.718, p < 0.01; week 12: r = –0.651, p < 0.01; month 6: r = –0.672, p < 0.01). The highest correlation with tourniquet time was obtained 6 weeks after surgery. Additionally, strong negative correlations were observed between the AKSS and tourniquet times (Knee Score: r = –0.904, p < 0.01; Knee Functional Score: r = –0.878, p < 0.01). Lower postoperative mean quadriceps strength in patients with a longer tourniquet time, suggesting that the tourniquet time affects the quadriceps muscle strength witl longer times resulting lower muscle strength