BackgroundMany reconstruction materials for orbital floor fractures have been described in the past including autologous bone transplants, resorbable polymers and titan meshes. So far evidence is missing which material is used successfully regarding indication and particular size of defect. Therefore the aim of this study was to evaluate which reconstruction technique produces best clinical outcome and least complications associated with indication.MethodsRetrospectively, surgical and ophthalmological data plus CT scans from a collective of 775 patients between 2005 and 2012 were analyzed. Furthermore included patients were sounded on satisfaction and potential problems postoperatively.ResultsOverall 593 patients offered full pre- and postoperative short-time data appropriate to inclusion criteria – of these 507 (85,5 %) underwent primary surgical treatment. Smallest average defect size was found in cases with no indication for surgical treatment (81 mm2), largest in cases indicating titanium mesh reconstruction (601.5 mm2). In 15 cases exact fragment reposition was possible without insertion of alloplastic material. Best clinical results obtained reconstruction using polydioxanone foil (PDS). 0.15 mm PDS-foil: 444 patients, reduced diplopia pre to postoperative 16 to 6 % (p < 0.01), ex- and enophthalmus < 2 % after surgery. 0.25 mm PDS-foil: 26 patients, reduced diplopia from pre- to postoperative 34,6 to 3,8 % (p < 0.01), postoperative exophthalmus rate was higher than preoperative (3,8 to 7,7 %). In comparison to reconstruction with PDS-foil a higher percentage of patients reconstructed with titanium meshes (n = 22) revealed no significant reduction of diplopia (45,5 to 31,8 %; p = 0.07). Furthermore 63 of all included patients agreed to complete a questionnaire on intermediate-term postoperative symptoms and surgical contentedness. Remarkably 50 % of the patients reconstructed with titanium meshes indicated foreign body sensations and cold feeling in the long-term.ConclusionsShort- and intermediate-term results of clinical outcome in our patients with surgical treated orbital floor fractures (i.e. diplopia, en- or exophthalmus) reveal that thin resorbable foils, particularly 0.15 mm diameter PDS-foil seem to generate best results referring to orbital floor defects with a size of 250 to 300 mm2.Trial registrationStudy number 4222, year 2013, ethics committee of the medical faculty of the Heinrich Heine university of Duesseldorf.

No abstract

ÖzGenotipler farklı çevre koşullarında farklı performans gösterebilmektedir. Ülkemizde serin iklim tahıllarında tescil denemeleri bölgesel olarak yürütülmektedir. AbstractGenotypes may show different performance in different environmental conditions. Registration trials of cool season cereals are carried out in our country as a regional. Aegean and Southern Marmara regions were considered as separate regions until the year 2009. After that they are combined. The aim of this research was to determine the grain yield stability and quality characteristicsof Ziyabey 98, BasriBey 95, Gönen 98, Tahirova 2000, Pamukova 97 and Hanlı bread wheat varieties which were registered separately for both regions. Differences of opinion regarding the integration of the region continues today. Furthermore, this study; a general assessment is important in terms of retroactively be made. Experiments were established in randomized completely block design with four replicates between the years 2010-2013. Mean yield of varieties, regression coefficient (b), regression line intercept (a), determination coefficient (R 2 ) and coefficient variation (CV) were evaluated as stability parameters. According to the result of stability parameters, Ziyabey 98, BasriBey 95 and Hanlı varieties came to the fore in grain yield. The highest value in a thousand kernel weight was obtained in Tahirova 2000. There was no statistical significance between varieties in hectoliter weight. Pamukova 97 was showed the highest value in terms of protein content, zeleny sedimentation and alveograf energy value.

No abstract

No abstract