Bursa Orhangazi University

ObjectivesThis study aims to compare clinical and radiographic outcomes of arthroscopic repair versus conservative management in patients with medial meniscus posterior root tears (MMPRTs).Patients and methodsBetween January 2019 and December 2021, a total of 41 patients (9 males, 32 females; mean age: 49±12 years; range, 35 to 68 years) who underwent MMPRT repair and 123 patients (11 males, 112 females; mean age: 52±7 years; range, 26 to 74 years) who refused to undergo MMPRT repair and were managed conservatively were included in the study. Surgical candidates had neutral or mild varus alignment (≤5°), preserved joint space, and Kellgren-Lawrence (K-L) Grade 1-2 osteoarthritis. Baseline K-L grades, Lysholm Knee Scores (LKS), and International Knee Documentation Committee (IKDC) scores were recorded.ResultsThe mean follow-up was 32±11 (range, 24 to 60) months in the repair group and 28±6 (range, 24 to 48) months in the control group (p=0.025). Baseline LKS scores were similar between the groups (p=0.685), while IKDC scores were lower in the repair group (p=0.001). At final follow-up, the repair group showed higher LKS scores (78±19 vs. 65±32; p=0.021) and greater improvements in LKS (+46±25 vs. +36±38; p=0.046) and IKDC scores (+38±18 vs. +26±27; p=0.002). No repair patients progressed to K-L Grade 4, compared to 11% of controls (p=0.027). No repair patients required further surgery, whereas 20% of conservative patients did, including 7% undergoing arthroplasty.ConclusionArthroscopic MMPRT repair yielded a more favorable functional improvement, no subsequent surgeries, and improved radiographic preservation compared to conservative management, supporting early surgical intervention in selected patients.

The aim of this study was to investigate the relationship between serum calcium and potassium levels, as well as the calcium/potassium ratio, and electrocardiographic (ECG) changes in patients presenting to the emergency department with both renal failure and hyperkalemia. This cross-sectional study was conducted retrospectively by reviewing the medical records of patients diagnosed with renal failure and concomitant hyperkalemia (serum potassium>5.5 mEq/L) who presented to the emergency departments of a university hospital and a training and research hospital between November 1, 2022, and October 31, 2023. 55.4% of the patients were male, with a mean age of 68.31 ± 13.56 years. ECG abnormalities were detected in 69.5% of the cases. The most frequently observed ECG abnormalities were atrial fibrillation (22.0%) and peaked T waves (20.3%). Hemodialysis was performed in 52.5% of patients, 23.2% were admitted to the intensive care unit (ICU), and 15.8% died within 30 days of hospital presentation. Patients with T wave inversion had significantly lower potassium levels (6.42 ± 0.77 vs. 6.03 ± 0.71, p=0.018). In patients with any ECG abnormality, calcium levels (8.69 ± 0.87 vs. 8.36 ± 0.85, p=0.037) and calcium/potassium ratios (1.39 ± 0.19 vs. 1.32 ± 0.20, p=0.036) were significantly lower. The calcium/potassium ratio was also significantly lower in patients with peaked T waves (1.36 ± 0.20 vs. 1.27 ± 0.20, p=0.016). Among patients who died in-hospital or within 30 days, calcium/potassium ratios were significantly lower and potassium levels were significantly higher (p

The need for intra-articular osteotomy and potential complications at the donor site may lead some surgeons to avoid using the osteochondral autograft transfer method as a primary surgery, instead considering it a revision procedure for osteochondral lesions of the talus. In this retrospective study, we hypothesized that the primary application of osteochondral autograft transfer in cystic talar osteochondral lesions would yield good results and intra-articular osteotomy and donor site would not have a negative effect on long-term clinical outcomes. The primary objective of this study was to demonstrate that osteochondral autograft transfer can be safely applied as a primary treatment for cystic talar osteochondral lesions. In our study, 21 patients underwent primary osteochondral autograft transfer for cystic talar osteochondral lesions. Demographic data of patients, including age, gender, and body mass index, as well as duration of symptoms, etiology of the lesion, location of the lesion, and follow-up duration were recorded from our medical records. The clinical evaluation used the visual analog scale for pain, function, and satisfaction along with the American Orthopaedic Foot & Ankle Society score. In addition, the magnetic resonance observation of cartilage repair tissue scale was used for evaluation of graft healing. The mean follow-up time was 32 months. According to the results of the study, compared with the preoperative status, statistically significant improvement was observed in visual analog scale pain, function, and satisfaction scores as well as in the American College of Foot and Ankle Surgeons score. In addition to these findings, it was observed that there was no negative effect of intra-articular osteotomy and donor site on long-term results. Our study showed that osteochondral autograft transfer can be safely applied as primary surgery in cystic talar osteochondral lesions.

Reaction to the force application is observed in the clinical scenarios as anchorage loss, which is the unwanted movement of the teeth. A plethora of approaches have been developed over time in orthodontics to overcome anchorage loss. These approaches are termed anchorage reinforcement procedures. Anchorage loss refers to the unintended movement or shifting of teeth that are intended to remain stable and serve as anchoring points during orthodontic treatment. This loss of stability can occur in various dimensions, including horizontal, vertical, or transverse, and can result in undesired changes to the overall positioning and alignment of teeth. Anchorage can be termed as conventional intraoral anchorage which usually leads to significant anchorage loss. The conventional extraoral anchorage such as headgear suffers from the issue of compliance.

Subepithelial lesions (SELs) are common findings in the gastrointestinal (GI) tract. They are often benign and asymptomatic but can cause symptoms in some cases. The approach to endoscopic management of these lesions depends on various factors, including associated symptoms, location, available equipment, and operator expertise. In this case report, we present a 50-year-old male with long-standing dyspepsia who was found to have a submucosal lesion in the stomach. The lesion was successfully treated using the bite-on-bite method with cold biopsy forceps. This report aims to discuss gastric subepithelial lesions and current management options, and highlight an old technique for endoscopists in the era of advanced endoscopy.

Assessment of bias in health studies is important and not easy to measure objectively. The aim of this study was to develop an easy-to-use, comprehensive, cost effective and time efficient bias control tool for observational studies. This was a methodological study conducted between June 2018 – June 2020. Literature review to extract items, expert opinions, Delphi panels, construction of the framework and the content of the tool, statistical analysis and reporting of the study were the main steps. Literature review was conducted with prespecified keywords by researchers. “Expert Assessment Form” was used to evaluate expert opinions. Although Content Validity Ratio (CVR) was used to check the content validity, it was mainly based on consensus of experts. Three Delphi panels were carried out. The name of the developed tool was decided to be Bias Risk Assessment Tool (BiRAT). It was considered to use the abbreviations BiRAT-CS for cross-sectional studies, BiRAT-CC for case-control studies and BiRAT-Co for cohort studies. Descriptive statistics A total of 71 expert assessment forms were sent to 67 experts and 44 of them were received. As a result of the assessments made after the Delphi panels; 67-item BiRAT-CS, 69-item BiRAT-CC and 70-item BiRAT-Co were developed. BiRAT tools may be used in training, preparing for a study, or publication process. However, bias assessment tools should be used with mobile / online applications or artificial intelligence technologies for easier use and further development since the use of them were generally impractical.

I. Dunya savasi sonunda imzalanan Mondros Mutarekesi, Bursa icin de isgal surecini baslatmistir. Isgal guclerinin ve Istanbul Hukumeti’nin Bursa halkini kendi saflarina cekme yonundeki girisimlerinin, halkin bir kismi ve sehrin bazi yoneticilerince karsilik bulmasi, Ankara Hukumeti’nin Bursa ve civarinin isgalinde bir sure kesin tavir alamamasina sebep olmustur. Belirsizlik sureci, Bursa ve civarinin savasilmadan teslim edilip, geri alindigi gibi algilanmalara yol acmistir. Bu durumun aydinlatilabilmesi icin isgal ve kurtulus surecinde Marmara bolgesi, Iznik, Orhangazi, Gemlik, Mudanya, Bursa ve civarindaki tum askeri harekâtlar, Anadolu’yu kurtulusa goturen askeri harekâtlarla birlikte ele alinmistir. Bursa ve civarindaki askeri harekâtlarin buyuk kismi, Albay Deli Halit komutasinda Kocaeli grup komutanligi tarafindan yurutulmustur. Bu bolgenin isgalden kurtarilmasi asamasina gelindiginde Sukru Naili Pasa (Gokberk) komutasindaki 3. Kolordu bu bolgeye sevk edilmis, Bursa ve civarinin kurtarilma harekâti musterek olarak gerceklestirilmistir. Calismada Bursa ve civarinin kurtulusu, 3. Kolordu Komutani Sukru Naili Pasa’nin Bursa Salnamesindeki hatiralari, Albay Deli Halit (Karsialan) komutasindaki Kocaeli Grubu’nun askeri faaliyetleri; Milli Mucadele’nin diger cephe harekâtlariyla baglantili olarak anlatilmistir. Bursa’nin dusmana karsi konulmadan teslim edilmedigi, kolaylikla da kurtulusa gidilmedigi ve bu surecte cok buyuk mucadeleler verildigi gorulmustur.

To evaluate and quantify the effect of the axial compression ratio (ACR) on the seismic performance of reinforced concrete (RC) columns, studies of analytical relationships between the axial compression and the mechanical behaviour of RC columns were conducted, followed by a comprehensive statistical analysis with 474 sets of experimental data. Stipulated limits on the ACR and their evaluation methods in various design codes of practice in the world were analysed and compared. Based on the findings of the research, the development of new provisions on the ACR for the seismic design of RC columns is presented on a scientific basis. The limiting values of column ACR which can be stipulated in the developing design code of structures for seismic resistance in Hong Kong are recommended.

An arbitrary shape called botanic curve is used for waveguide cross section which is singly connected and has enough smooth form. The boundary value problem is solved with evolutionary equations of electromagnetic theory in time domain. The real valued solutions of fields are subsequently obtained in Hilbert space. The field components depend on transverse coordinates and amplitudes are function of time and axial coordinates. The modal and energetic waves are studied in detail and their dependence on time graphically illustrated for lossy and lossless waveguide.

In the present study, commercial pure titanium was successfully plasma paste borided using borax paste at a temperature of 700, 750 and 800°C for 3, 5 and 7 h. The X-ray diffraction and scanning electron microscopy techniques revealed the presence of both TiB2 top-layer and TiB whiskers sub-layer. The formation rates of the TiB2 layer and TiB whiskers were found to have a parabolic character at all applied process temperatures. Based on the present Ti borides growth data, correspondent diffusion temperature and time, an analytical diffusion model was used to estimate boron diffusion coefficients and activation energies of the boride phases in a binary multiphase Ti–B system. Depending on the temperature and layer thickness, the activation energies of boron in TiB2 and TiB phases were determined to be 137.55 ± 0.5 and 55.21 ± 0.5 kJ mol−1, respectively. These values of boron activation energies for pure titanium were compared to the literature data.