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UZER, GÖKÇER

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GÖKÇER
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UZER
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2015 - 20172
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Author: TUNCAY, İBRAHİM × Rights: info:eu-repo/semantics/openAccess ×

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    PublicationOpen Access
    Superior Mesenteric Artery Syndrome due to a Vertebral Hemangioma and Postpartum Osteoporosis following Treatment.
    (2015-01-01) Elmadag, M; GÜZEL, Y; UZER, GÖKÇER; TUNCAY, İBRAHİM; ELMADAĞ, NUH MEHMET; UZER, GÖKÇER; TUNCAY, İBRAHİM
    In pregnancy, advanced vertebral hemangiomas may be seen, and these require treatment. The case reported here is of a 35-yearold female in the 32nd week of pregnancy who was admitted to the orthopaedics clinic with a history of backache and difficulty walking. A burst fracture of L1 associated with a vertebral hemangioma was identified with an L3 compression fracture secondary to osteoporosis. The local kyphosis angle between T12 and L2 was 27∘ . Kyphotic deformity was corrected and postoperatively, the measured T12–L2 local kyphotic angle was 9∘ . Twelve hours postoperatively, oral nutrition was allowed, but she developed nausea and vomiting and twenty-four hours postoperatively, an electrolyte imbalance developed. Postoperatively, the patient was diagnosed with superior mesenteric artery syndrome. To the best of our knowledge, this is the first reported case of superior mesenteric artery syndrome, which occurred following the correction of a kyphotic deformity that had developed secondary to an advanced hemangioma in pregnancy
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    PublicationOpen Access
    Cytotoxicity of a new antimicrobial coating for surgical screws: an in vivo study
    (2017-01-01) Guzel, Yunus; Elmadag, Mehmet; Uzer, GÖKÇER; Yildiz, FATİH; Bilsel, Kerem; Tuncay, Ibrahim; ELMADAĞ, NUH MEHMET; UZER, GÖKÇER; YILDIZ, FATİH; BİLSEL, İSMAIL KEREM; TUNCAY, İBRAHİM
    he risk of surgery-related infection is a persistent problem in orthopaedics and infections involving implants are particularly difficult to treat. This study explored the responses of bone and soft tissue to antimicrobialcoated screws. We investigated whether such screws, which have never been used to fix bony tissues, would result in a cytotoxic effect. We hypothesised that the coated screws would not be toxic to the bone and that the likelihood of infection would be reduced since bacteria are not able to grow on these screws. METHODS Titanium screws were inserted into the left supracondylar femoral regions of 16 rabbits. The screws were either uncoated (control group, n = 8) or coated with a polyvinylpyrrolidone-polyurethane interpolymer with tertiary amine functional groups (experimental group, n = 8). At Week 6, histological samples were obtained and examined. The presence of necrosis, fibrosis and inflammation in the bony tissue and the tissue surrounding the screws was recorded. RESULTS Live, cellular bone marrow was present in all the rabbits from the experimental group, but was replaced with connective tissue in four rabbits from the control group. Eight rabbits from the control group and two rabbits from the experimental group had necrosis in fatty bone marrow. Inflammation was observed in one rabbit from the experimental group and five rabbits from the control group. CONCLUSION Titanium surgical screws coated with polyvinylpyrrolidone-polyurethane interpolymer were associated with less necrosis than standard uncoated screws. The coated screws were also not associated with any cytotoxic side effect.