Person:
GÜNEREN, ETHEM

Status

Kurumdan Ayrılmıştır

Organizational Units

Organizational Unit

Tıp Fakültesi

First Name

ETHEM

Last Name

GÜNEREN

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Now showing 1 - 10 of 13

Open Access
Treatment of Mallet Finger Deformity with Ring Splint
(2018-07-01) Hosbay, ZEYNEP; Guneren, ETHEM; HOŞBAY, ZEYNEP; GÜNEREN, ETHEM
Mallet finger deformity is the loss of active extension on distal interphalangeal joint and possessing hyperextension deformity on PIP joint. Although there are several treatment alternatives for mallet finger deformity, optimal treatment is unclear. In this paper, we discuss Mallet finger deformity caused by blunt injuries in the late term in a 7-year-old patient, who underwent second surgery. We also discuss the results of subsequent physiotherapy program.
Open Access
Functional Improvement with Free Vascularized Toe-to-hand Proximal Interphalangeal (PIP) Joint Transfer.
(2018-07-09T00:00:00Z) Güneren, E; Kuzu, İM; Kayan, RB; Öztürk, K; GÜNEREN, ETHEM
Open Access
Generation of Bone Tissue Using Adipose Tissue-derived Stem Cells
(2021-07-01T00:00:00Z) Baygol, Emre Gonenc; GÜNEREN, Ethem; Karaaltin, Mehmet Veli; Canter, Halil Ibrahim; Ozturk, Kahraman; Ovali, Ercument; Ozpur, Mustafa Aykut; YILDIZ, KEMALETTİN; Eyuboglu, Fatma; GÜNEREN, ETHEM; YILDIZ, KEMALETTİN
Objective: Bone grafts and even bone substitutes do not meet all of the requirements of bony reconstructions. The aim of this study was to generate bone tissue from autologous adipose tissue-derived mesenchymal stem cells (ATDMSCs) and decellularised bone allografts. Methods: A 1.5 cm bone defect developed in the middle third of the rabbit's ulna. Reconstructions were carried out using miniplate and screws and interpositional autogenous bone grafts according to the designs of the groups: (1) No touch, (2) cryopreserved, (3) decellularised and (4) ATDMSCs-implanted decellularised bones. Before implantation, ATDMSCs in the last group were labelled with Q-dot and identified microscopically. Results: Graft recovery and irregular callus formation were observed in the first, second and forth groups. In the first group, the organisation of Haversian systems, the structure of the lacunae and the presence of canaliculi ossiums were observed; in the second group, approximately 40% of the Haversian canals contained blood vessels, and canaliculi ossiums in the form of thin filaments were found in 90% of the microscopically examined areas; in the third group, most Haversian canals were empty, most osteocyte canals were devoid of cells, and canaliculi ossiums were absent; in the fourth group, some of the Haversian canals contained blood vessels, and there were partly lacunae containing cells due to decellularisation, whereas in approximately 50% of the examined microscope areas, the presence of canaliculi ossiums with evidence of mesenchymal stem cells differentiated into osteocytes was demonstrated by Q-dot traced cells. Conclusion: In this study, the establishment of a proper niche environment for adipose-derived mesenchymal cells promotes their development into osteogenic cells.
Open Access
Recommendations for management of diabetic foot ulcers during COVID-19 outbreak.
(2020-06-05T00:00:00Z) Kelahmetoglu, Osman; Camlı, Mf; Kirazoglu, A; Erbayat, Y; Guneren, E; Asgarzade, S; Durgun, U; Mehdizade, T; Yeniocak, A; Yildiz, K; Sonmez, Ergun; KELAHMETOĞLU, OSMAN; ERGÜN, SELMA; GÜNEREN, ETHEM
COVID-19 pandemia began in Wuhan, China, in December 2019. A total of 1 878 489 people were infected and 119 044 people were lost because of the disease and its complications by 15 April. Severe morbidity and mortality complications are mostly seen in elderly and patients having comorbidities. Diabetic foot ulcers (DFUs) are one of severe complications of diabetes mellitus and it may require urgent surgical interventions. In this paper, we aimed to create a management algorithm to prevent the unexpected complications that may occur in the patients and health care workers during the evaluation of COVID-19 in DFU patients who require urgent surgical intervention. We advise the use of thorax computerised tomography for preoperative screening in all DFU patients with severe signs of infection and especially those requiring urgent surgery for both the detection of the possible undiagnosed COVID-19 in the patient for the need for close follow-up and protection of the surgical and anaesthesiology team.
Open Access
Double-Layer Reconstruction of the Achilles- Tendon Using a Modified Lindholm-s Technique and Vascularized Fascia Lata
(2018-04-01T00:00:00Z) Kelahmetoglu, OSMAN; Gules, Mustafa Ekrem; Elmadag, Nuh Mehmet; Ergun, Selma Sonmez; Guneren, Ethem; KELAHMETOĞLU, OSMAN; GÜNEREN, ETHEM; ERGÜN, SELMA
Loss of the Achilles- tendon with overlying soft tissue and skin defects remains a complex reconstructive challenge. Herein we present our experience using a free composite anterolateral thigh (ALT) flap with vascularized fascia lata and a modified Lindholm-s technique to repair the Achilles- tendon. A 37-year-old man suffered from tertiary Achilles- tendon rupture. For reconstruction, the free composite ALT flap with vascularized fascia lata was used to wrap Achilles- tendon. A modified Lindholm-s technique was used to cover overlying soft tissue defects. The patient was followed up for 12 months. No wound healing problems were reported, and the patient was able to walk and return to his daily ambulating activities without any support after 5 months postoperatively. This technique may be useful to achieve satisfactory outcomes in patients with ruptured Achilles- tendons following tertiary repair.
Open Access
A simple concept for covering pressure sores: wound edge-based propeller perforator flap.
(2017-12-01T00:00:00Z) Kelahmetoglu, OSMAN; Guneren, E; Van, Landuyt; Yagmur, C; Sommeling, CE; Keles, MK; Tayfur, V; Simsek, T; Demirtas, Y; KELAHMETOĞLU, OSMAN; GÜNEREN, ETHEM
Open Access
Primary cutaneous carcinosarcoma: The first reported case with peripheral nerve sheath differentiation
(2014-06-01T00:00:00Z) Yildiz, PELİN; Tosuner, ZEYNEP; Guneren, ETHEM; Demirkesen, Cuyan; YILDIZ, PELİN; TOSUNER, ZEYNEP; GÜNEREN, ETHEM
Primary cutaneous carcinosarcomas (CS) are extremely rare biphasic tumors mainly located on sun-exposed areas of the body. Two hypotheses-multiclonal (convergence) and monoclonal (divergence)-have been suggested for the evolution of these tumors. According to multiclonal hypothesis two or more stem cells of epithelial and mesenchymal origin give rise to these tumors, while a single totipotential cell differentiate into epithelial and mesenchymal components, either synchronously or metachronously according to monoclonal hypothesis. Cutaneous CSs are subdivided into two distinct groups as epidermal and adnexal CSs, due to their epithelial content. We present an interesting case of cutaneous adnexal CS, showing peripheral nerve sheath differentiation and having the spiradenocarcinoma component derived from spiradenoma. To the best of our knowledge, it is the first reported case of CS with these features in the literature.
Open Access
Embedding Exposed Subcutaneous Venous Ports in the Pectoral Muscle: A Practical and Stable Technique for Coverage
(2017-04-01) Kelahmetoglu, OSMAN; Demir, Ahmet; Yagmur, Caglayan; DEMIRTAS, Yener; Guneren, ETHEM; KELAHMETOĞLU, OSMAN; GÜNEREN, ETHEM
Objective: The aim of this study was to present our experience in embedding exposed subcutaneous venous ports in the pectoral muscle.
Open Access
Boneless Maxillary Reconstruction
(2020-01-01T00:00:00Z) Kelahmetoğlu, Osman; Güneren, Ethem; Kuzu, Ismail Melih; Yıldız, Kemalettin; KELAHMETOĞLU, OSMAN; GÜNEREN, ETHEM; YILDIZ, KEMALETTİN
Objective: Although the midface is supported by maxillary bone, reconstruction of maxillary bony defects does not always require osseous reconstruction. A series of maxillary facial defects of moderate to severe sizes (Brown and Shaw 4-6) uniformly reconstructed with myocutaneous free flaps is presented. Methods: Retrospective analysis was done for consecutive 10 cases between 2013-18. Seven of the cases had defects caused by oncological resection and 3 defects caused by trauma. Free vertically oriented rectus abdominis (fVRAM) flap was used to reconstruct these defects. The mean age of patients was 42.9 years (range=20-71 years). All flaps survived and 2 flaps had small skin island problems. Rapid recovery, low morbidity, acceptable oral competency, and satisfactory cosmetic appearance were obtained with the reconstruction using fVRAM flaps. Conclusion: According to our limited experience, acceptable reconstruction of extensive maxillary defects can be done with using only soft tissue flap, which is versatile and safe.
Open Access
Menopause Does Not Reduce Hematoma Risk After Reduction Mammoplasty Surgery: A Retrospective Analysis
(2020-10-01T00:00:00Z) Kelahmetoglu, Osman; Yagmur, Caglayan; Firinciogullari, Remzi; Akman, Onur; GÜNEREN, Ethem; KELAHMETOĞLU, OSMAN; AKMAN, ONUR; GÜNEREN, ETHEM
Objective: Hematoma is one of the early complications of breast reduction surgery. According to our literature review, this concomitance was not discussed in detail. The aim of this study is to show the relationship of postoperative hematoma with menopausal status in reduction mammoplasty patients. Methods: This study included 153 patients who underwent breast reduction surgery from 2014 to 2018, and had no comorbid disease and were questioned for menopause retrospectively. The patients were divided into two groups: Group 1 comprised premenopausal women, and Group 2 comprised postmenopausal women. Results: The mean age of the patients in Group 1 and Group 2 was 33.26 +/- 7.58 years and 52.96 +/- 4.34 years, respectively (p=0.00). The mean of total resected tissue weights in Groups 1 and 2 were 2.104 +/- 1.201 grammes and 2.492 +/- 1.098 grammes, respectively (p=0.119). Hematomas were seen in six (4.8%) patients in Group 1, and no hematoma was seen in Group 2 (p=0.593). Conclusion: Our findings showed that menopause does not reduce the risk for hematoma, but we recommend further clinical studies.