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Dive into the research topics where Yener Demirtas is active.

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Featured researches published by Yener Demirtas.


Burns | 2010

Management of split-thickness skin graft donor site: A prospective clinical trial for comparison of five different dressing materials

Yener Demirtas; Caglayan Yagmur; Fatih Söylemez; Nuray Ozturk; Ahmet Demir

INTRODUCTION Split-thickness skin grafting (STSG) is a frequently used reconstructive technique but is associated with a large variation regarding the management of the donor site. The aim of this study is to compare five different dressings for management of the STSG donor site in a prospective trial. PATIENTS AND METHODS 100 consecutive patients, in whom reconstruction with STSG was performed, were included into the study. The grafts are harvested in a standard manner and the donor sites were dressed with one of the following materials: Aquacel® Ag, Bactigras® with Melolin®, Comfeel® Plus Transparent, Opsite® Flexigrid and Adaptic®. The materials are compared regarding to the time required for complete epithelialization, pain sensed by the patients, incidence of infection, scar formation, ease of application and the cost. RESULTS The earliest complete epithelialization was observed for Aquacel® Ag and the latest for Bactigras® with Melolin®·Comfeel® Plus Transparent was the most painless dressing and Bactigras® with Melolin® was the most painful. The incidence of infection was highest for Bactigras® with Melolin®·Opsite® Flexigrid was the most economical dressing and Aquacel® Ag was the most expensive one. CONCLUSION The aim is to provide the earliest complete epithelialization with minimal patient discomfort and lower cost in management of the STSG donor sites. None of the tested materials were ideal regarding these criteria, but Comfeel® Plus Transparent, as the least painful and one of the most economical materials, may be offered as the dressing of choice among the tested materials.


Microsurgery | 2009

Comparison of free anterolateral thigh flaps and free muscle-musculocutaneous flaps in soft tissue reconstruction of lower extremity

Yener Demirtas; Osman Kelahmetoglu; Mehmet Çifci; Volkan Tayfur; Ahmet Demir; Ethem Güneren

The objective of this study was to compare the free muscle‐musculocutaneous flaps and free perforator skin flaps used for soft tissue reconstruction of the lower extremities.


Journal of Reconstructive Microsurgery | 2010

Comparison of Primary and Secondary Lower-Extremity Lymphedema Treated with Supermicrosurgical Lymphaticovenous Anastomosis and Lymphaticovenous Implantation

Yener Demirtas; Nuray Ozturk; Oktay Yapici; Murat Topalan

Although some authors previously stated that microlymphatic surgery does not have application to primary lymphedema, opposite views are reported based on the observations that the lymphatics were not hypoplastic in majority of these patients and microlymphatic surgery yielded significant improvement. The aim of this study was to compare the intraoperative findings and outcomes of primary and secondary lower-extremity lymphedema cases treated with lymphaticovenous shunts. Between December 2006 and April 2009, microlymphatic surgery was performed in 80 lower extremities with primary and 21 with secondary lymphedema. These two groups of extremities are compared according to the morphology of the lymphatic vessels and possibility of precise anastomoses, their response to the treatment, and final outcomes based on volumetric measurements during the follow-up period. The morphology of the lymphatics in secondary lymphedema was more consistent, and at least one collector larger than 0.3 mm was available for anastomosis in 20 of 21 extremities. In the primary lymphedema group, the lymphatics were smaller than 0.3 mm in 13 of 80 extremities. It was, therefore, possible to perform supermicrosurgical lymphaticovenous anastomosis in 84% of extremities with primary lymphedema and 95% of extremities with secondary lymphedema. Reduction of the edema occurred earlier in the secondary lymphedema group, but the mean reduction in the edema volume was comparable between the two groups. Microlymphatic surgery, although more effective and offered as the treatment of choice for secondary lymphedema, would also be a valuable and relevant treatment of primary lymphedema.


Journal of Reconstructive Microsurgery | 2013

Barcelona consensus on supermicrosurgery

Jaume Masia; L. Olivares; Isao Koshima; T. C. Teo; Sakari Suominen; K. Van Landuyt; Yener Demirtas; C. Becker; G. Pons; C. Garusi; Narushima Mitsunaga

The popularity of supermicrosurgery has increased dramatically over the past few years, but the lack of agreement regarding the name of the technique and its applications has caused misunderstandings among microsurgeons when trying to communicate and compare surgical procedures. We report the consensus reached on the name used to refer to supermicrosurgery techniques following the First European Conference on Supramicrosurgery held in Barcelona (Spain) on March 4-5, 2010. Present applications, advantages, and disadvantages of supermicrosurgery are discussed. It was agreed that supermicrosurgery was the most accurate name to reflect the essence of this extremely delicate technique. According to Koshima, supermicrosurgery is a technique of microneurovascular anastomosis for vessels of 0.3 to 0.8 mm and single nerve fascicles. The range of applications for this technique has increased rapidly and now includes lymphedema treatment, nerve reconstruction, replantation and reconstruction of amputated fingertips, microsurgical flap salvage, and new possibilities for free tissue transfer. Supermicrosurgery is a remarkably useful reconstructive tool that involves a great deal of skill and has a steep learning curve for the microsurgeon to master. Although it is currently performed by only a minority of microsurgeons, we consider it will be incorporated into conventional microsurgery in the near future.


Plastic and Reconstructive Surgery | 2010

Hemifacial resurfacing with prefabricated induced expanded supraclavicular skin flap.

Murat Topalan; Erdem Güven; Yener Demirtas

BACKGROUND Severe facial burn sequelae present a great challenge and maximally test the principles of reconstructive surgery. Three of these basic principles--free tissue transfer, flap prefabrication, and tissue expansion--are combined to achieve superior reconstructive outcomes. This approach evolved into the prefabricated induced expanded flap, which refers to the staged transfer of expanded supraclavicular skin with an antebrachial fascial free flap used as the carrier. METHODS In the first surgical stage, the radial artery and corresponding vein in antebrachial fascia were transferred to a subcutaneous pocket in the supraclavicular fossa over a large skin expander, with anastomoses to the neck vessels. During the second stage, after adequate expansion lasting 2 to 3 months, the total scarred hemiface was excised, and the prefabricated induced expanded flap was dissected and then transferred as an island to cover the skin defect. RESULTS Twenty-six patients with severe hemifacial burn sequelae and three more with other large hemifacial lesions underwent successful facial resurfacing with the described technique in the last 7 years. Twenty patients were male and nine were female, with a mean age of 23. Mean follow-up was 3.4 years. All of the flaps survived after transfer, and no major complication was observed. CONCLUSIONS The supraclavicular prefabricated induced expanded flap can provide ample amounts of vascularized, thin, and desirable skin with perfect color match for resurfacing major facial defects. The aesthetic and functional results were encouraging and progressively improved during follow-up.


Foot & Ankle International | 2010

Comparison of Free Muscle and Perforator Skin Flaps for Soft Tissue Reconstruction of the Foot and Ankle

Yener Demirtas; Tale Neimetzade; Osman Kelahmetoglu; Ethem Güneren

Background: Free tissue transfer is generally required for reconstruction of soft-tissue defects of the foot and ankle region because of the limited local tissue available. This type of reconstruction may interfere with postoperative function and footwear if a bulky flap is used. Materials and Methods: Twenty-nine patients had free tissue transfers to the foot and ankle region during a period of 3 years. Sixteen had reconstruction with free anterolateral thigh perforator flaps (ALT) and 13 had reconstruction with free muscle flaps. The outcomes of both types of reconstructions were compared according to flap scores and complications, operative time, hospitalization, gait and shoewear problems. Results: The patients in the ALT group were younger compared with those of the free muscle flap group (p = 0.022). The operative time and flap complication rate was significantly higher (p = 0.007 and 0.040, respectively) in the ALT group. ALT was generally used for reconstruction of the dorsal foot, heel and plantar regions. Muscle flaps were preferred in the ankle region, where open fractures of the tibia and fibula were frequently present, and for the patients with increased risk of perioperative morbidity. Conclusion: Free ALT flap consisting of skin and adaptable subcutaneous tissue, both diminishes donor site morbidity and is ideally suited for most soft-tissue reconstruction of the dorsal foot, heel and plantar foot. Free muscle flaps, however, may offer relatively less complicated tissue transfers and are preferred at the ankle region in the presence of open tibia fractures, and in high risk patients to decrease the perioperative morbidity. Level of Evidence: III, Retrospective Case Control Study


Annals of Plastic Surgery | 2004

Proper timing of breast reduction during the menstrual cycle.

Yakup Sariguney; Yener Demirtas; Fulya Findikcioglu; Suhan Ayhan; Osman Latifoğlu; Seyhan Çenetoğlu; Cemalettin Çelebi

Breasts are known to show cyclic changes in accordance with the menstrual cycle, and speculations have been made regarding the ideal timing of breast surgery in this extent, but the clinical evidence to support global acceptance and application is lacking. This study was designed to establish the relationship of intraoperative bleeding and postoperative drainage with the menstrual period of 35 reduction mammaplasty patients. The results indicate that both perioperative blood loss and postoperative drainage were significantly reduced when breast reduction is performed during the periovulatory phase compared with the perimenstrual phase. The authors strongly recommend the interval between days 8 and 20 of the menstrual cycle as a more convenient period to perform breast reduction. Drains may be avoided during this period, but they are preferred if the surgery is done during the perimenstrual phase.


Foot & Ankle International | 2010

Free Anterolateral Thigh Flap for Reconstruction of Car Tire Injuries of Children's Feet

Yener Demirtas; Tale Neimetzade; Osman Kelahmetoglu; Ethem Güneren

Background: Grade IV and V car tire injuries occurring in children cause extensive soft tissue defects with exposure or loss of tendons and bone on the dorsum of the foot. Free tissue transfer is indicated for reconstruction of these defects because of the limited local tissue available. We describe our management of high-grade car tire foot injuries in children with free anterolateral thigh flap (ALT). Materials and Methods: Five pre-school children with car tire injuries (one grade IV and four grade V) were treated with free ALT flap in the last 4 years. The mean age was 4.8 years. In four patients, immediate flap coverage after initial debridement was performed and delayed reconstruction was used as a secondary procedure in one patient. Results: One of the flaps was re-explored for hematoma evacuation and salvaged. All of the flaps survived completely and there were no donor site complications. None of the flaps required a debulking procedure and custom shoe wear has not been necessary in any of the patients. Minor gait abnormalities were detected in two of the patients. Conclusion: With minimal donor site morbidity, long vascular pedicle allowing anastomosis outside of the trauma zone, we believe free ALT flap provides the ideal soft tissue reconstruction for high grade car tire injuries of foot in children. ALT flap can be further thinned to adapt to the defect, contracts less than muscle flaps and contains a vascularized fascia which can be used for extensor tendon reconstruction. Level of Evidence: IV, Retrospective Case Series


Journal of Craniofacial Surgery | 2009

A rare complication of nasotracheal intubation: accidental middle turbinectomy.

Tarik Cavusoglu; Ilker Yazici; Yener Demirtas; Berrin Gunaydin; Reha Yavuzer

In this paper, we are presenting a rare case of accidental middle turbinectomy, a complication of nasotracheal intubation. We have reviewed the literature and addressed important parameters on nasotracheal intubation to avoid damage to the turbinates and its possible serious complications.


Annals of Plastic Surgery | 2009

Pedicled perforator flaps.

Yener Demirtas; Nuray Ozturk; Osman Kelahmetoglu; Ahmet Demir

Described in this study is a surgical concept that supports the “consider and use a pedicled perforator flap whenever possible and indicated” approach to reconstruct a particular skin defect. The operation is entirely free-style; the only principle is to obtain a pedicled perforator flap to reconstruct the defect. The perforators are marked with a hand-held Doppler probe and multiple flaps are designed. The appropriate flap is elevated after identifying the perforator(s). Dissection of the perforator(s) or complete incision of the flap margins are not mandatory if the flap is mobilized adequately to cover the defect. Defects measuring 3 × 3 cm up to 20 × 20 cm at diverse locations were successfully reconstructed in 20 of 21 patients with 26 flaps. Pedicled perforator flaps offer us reliable and satisfactory results of reconstruction at different anatomic territories of the body. It sounds more practical and creative to use a free-style manner during pedicled perforator flap surgery, instead of being obliged to predefined templates for this type of procedure.

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Ahmet Demir

Ondokuz Mayıs University

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Ethem Güneren

Ondokuz Mayıs University

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