Person: KÜÇÜKDURMAZ, FATİH
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Publication Metadata only Comparison of Cytotoxic Effects of Intra-Articular Use of Tranexamic Acid versus Epinephrine on Rat Cartilage(2018-02-01T00:00:00Z) Sukur, Erhan; KÜÇÜKDURMAZ, FATİH; KÜÇÜKDURMAZ, FATİHBackground: Adequate visualization is known to be essential to perform arthroscopic procedures effectively and efficiently. We hypothesized that tranexamic acid may be considered as an alternative agent to reduce intra-articular bleeding during arthroscopic procedures, after comparing its potential chondrotoxicity with that of epinephrine.Publication Open Access Domestic electric drills in the service of orthopaedic surgery: a potential and preventable source of surgical site infections(2012-11-01) Kucukdurmaz, FATİH; IMREN, Yunus; Akkoyunlu, YASEMİN; Tuncay, Ibrahim; SEN, Cengiz; KÜÇÜKDURMAZ, FATİH; AKKOYUNLU, YASEMİN; TUNCAY, İBRAHİMObjective: We aimed to assess the contamination potential of the exhaust air from venting ports of running domestic electric drills which are commonly used in orthopaedic surgeries by means of both microbiological sampling and particle counting. Methods: In an empty operating room, the exhaust air from five running sterile domestic electric drills measured using a particle counter and microbiological sampling was made via aspirating isolator with colony formations noted for a 2-week period. International Organization for Standardization (ISO) 14644 criteria were implemented with respect to the sterility standards. Results: All of the drills produced statistically significantly higher levels of particles than the ambient air (p<0.01). There was no statistically significant difference in the number of collected particles among drills (p>0.05). No bacterial growth was detected in microbiological sampling via blood agar medium in the ambient air. Conversely, Staphylococcus epidermidis, Micrococcus luteus, and Staphylococcus capitis were isolated from the exhaust air of all running drills. There was no correlation between the number of particles produced by drills and the microbiological sampling. Conclusion: Domestic electric drills are not safe and may be a direct source of surgical site infection, as the use or re-use of these drills during orthopaedic surgery increases the risk of infection with contaminated aerosols that are produced by these devices.Publication Metadata only Closure of round cutaneous defects progressively with the purse string suture technique(2015-09-01T00:00:00Z) KÜÇÜKDURMAZ, FATİH; AĞIR, İSMAİL; Gumustas, Seyitali; Kivilcim, Hakan; Tetik, Cihangir; KÜÇÜKDURMAZ, FATİHIntroduction: There are many closure techniques available to cutaneous surgeons. One of them is the purse-string suture which is used to provide complete or partial closure of round skin defects. In our animal study; we closed skin defects with using subcuticular purse string suture technique by progressively cinching wound and we aim to more rapidly healing according to secondary healing. Methods: After anaesthetize, we created a 4 cm diameter circular full thickness skin defect on dorsal area of rats. In group 1, subcuticular purse string suture was applied by using a nonabsorbable and monofilament suture and a sliding arthroscopic knot was applied to both ends. Arthroscopic suture was shift 1 cm forward every day. In group 2 skin defect was leaved open and daily dressing was made and in both group defect diameters were measured every day and noted. Results: The skin defects were closed totally after 15 days in group 1 but in group 2 defects were reduced but still had a mean 1,5-cm diameter sircular defect. Conclusion: Closing large circular wound with purse string suture and gradual tightening decreases the healing time and expand the skin tissue without using any tissue expander.Publication Open Access Straight versus S-shaped sternotomy: a histologic study in the sheep model(2014-10-01) KÜÇÜKDURMAZ, FATİH; İNAN, BEKİR; KÜÇÜKDURMAZ, FATİHIntroduction: Straight sternotomy is the most common access for open heart surgery. Techniques have been proposed for maximizing sternal stability in high-risk patients. This trend implies a growing need for newer surgical techniques. The aim of this experimental study in the sheep model is to evaluate median vs. S shaped sternotomy the feasibility of using a special device to accelerate the sternal instability and bone healing. Materials and methods: We enrolled 31 sheep, weighing 18–30 kg. For all animals a midline skin incision was made. In group I (n = 16 animals), straight median sternotomy and in group II (n = 15 animals), S-shaped incision was marked on the periosteum of the sternum by new created device for standard S-shaped sternotomy. Sternum biopsies were performed on second surgery month for all survived animals from the sternum and the surrounding soft tissue. Results: No early superficial wound complications were observed. Overall mortality in the initial approach group was 19.3% (6 sheep). In group I; 3 sheep had died on first surgery day, the reason may be hemorrhage and in group II; 3 sheep developed intractable VF during surgery procedure or immediately afterwards so died. There were statistically significant differences in the scores of bone healing between group 1 and group 2 (4.2 vs.7.3, ANOVA, p < 0.001). Discussion: Our work is based on the use of a standard S-shaped sternotomy procedure on sheep sternum. In our experience with the sternal healing in the sheep model, the process of new bone formation was accelerated with S- shaped cut than straight sternotomy procedurePublication Open Access A novel intramedullary nail for use in the treatment of supramalleolar malunion and nonunion: A preliminary report of three cases(2016-10-01) KÜÇÜKDURMAZ, FATİH; KÜÇÜKDURMAZ, FATİHIntroduction: The fractures around the supramalleolar region are difficult to manage and deformities may occur following insufficient or inadequate treatment attempts. The treatment of those deformities is even more challenging. The available options for surgical fixation have inherent problems considering the soft tissue problems, infection and compliance of the patients. In this study, we report the preliminary outcome of new IMN system in use of supramalleolar deformities. Patients and methods: Three patients with supramalleolar deformities were recruited for this study. Two patients had periarticular distal tibia malunions and one patient had nonunion in same region. All patients were operated with using newly designed intramedullary nail system with a unique distal interlocking bolt screw. The outcome for each patient was followed-up and evaluated with using AOFAS score. Results: The patients were followed up for 3 years, 3 months, and 6 months, respectively. The AOFAS scores were 36, 33, and 21 preoperatively; and 75, 68, and 75 postoperatively in Patients 1, 2 and 3, respectively. Conclusion: In our patient series, adequate fixation following correction of the deformity was seen. Although the number of the cases are limited this study provides encouraging results regarding the outcome of new IMN system in use of supramalleolar deformities.Publication Open Access Biomechanical comparison of antirotator compression hip screw and cannulated screw fixations in the femoral neck fractures(2014-03-01T00:00:00Z) Saglam, Necdet; KÜÇÜKDURMAZ, FATİH; Kivilcim, Hakan; Kurtulmus, Tuhan; Sen, Cengiz; Akpinar, Fuat; KÜÇÜKDURMAZ, FATİHObjective: The aim of this study was to compare the biomechanical properties of minimal invasive sliding antirotator compressive hip screw (MIS-A-CHS), and multiple cannulated screws (CS) on a Pauwels type 3 femoral neck fracture model.Publication Metadata only A newly designed intramedullary nail with distal interlocking system for tibia fractures in adults - the clinical results(2012-05-01T00:00:00Z) KÜÇÜKDURMAZ, FATİH; Akpinar, Fuat; Saka, Gursel; Saglam, Necdet; Aci, Cihan; KÜÇÜKDURMAZ, FATİHBACKGROUND The surgical treatment of fractures of the tibia includes reamed and unreamed options. Reamed nails have mechanical advantages but they significantly harm the endosteal circulation. Unreamed nails spare the endosteal circulation, but provide a less stable fixation. In both systems, immediate full weight-bearing is not possible due to instability related to distal interlocking (DI). Further, DI is responsible for the majority of the fluoroscopy requirement and a significant loss of surgical time. In our study, we present the clinical results of a new intramedullary (IM) nail and system, which allows stable fixation with an unreamed technique that permits immediate full weight-bearing, with a minimum fluoroscopy requirement for DI. METHODS Fifty tibia fractures (49 patients) operated using our new IM system between 2008 and 2010 were evaluated retrospectively. They were allowed full weight-bearing the day after surgery. The patients were followed at least 10 months postoperatively. RESULTS Mean fluoroscopy time was 18 seconds (min: 10, max: 30) for DI. Mean union time was 9 weeks (min: 6, max: 12). There was no neurovascular injury, deep infection, malunion, delayed union, or nonunion. CONCLUSION We demonstrated that our newly developed IM nail and new DI system may be an option to solve the stability problems sourced from the DI screw. It also significantly decreases the requirement of fluoroscopy.Publication Open Access Morphometry of the medial tibial plateau in Turkish knees: correlation to the current tibial components of unicompartmental knee arthroplasty(2014-03-01) Kucukdurmaz, FATİH; Tuncay, Ibrahim; Elmadag, Mehmet; TUNCER, Nejat; KÜÇÜKDURMAZ, FATİH; TUNCAY, İBRAHİM; ELMADAĞ, NUH MEHMETObjective: The objective of this study was to measure the resected surfaces of the tibia in knees of Turkish patients and to compare these measurements with the dimensions of tibial implants in current use. Methods: We made measurements of seven different dimensions of the medial tibial plateau at the virtual resection level for unicompartmental knee arthroplasty (UKA) on MRIs of 260 patients and the most commonly used four UKA implants in Turkey. Statistical analysis was performed by using Student's t-test, analysis of variance (ANOVA), chi-square test and Pearson's correlation coefficient by using SPSS software. Results: The anteroposterior and widest mediolateral dimensions of the tibial plateau of Turkish knees were found relatively more approximate to the dimensions of Oxford and Zuk prostheses compared to that of Accuris and Mitus (p<0.001). The distance between the central mediolateral dimension and the widest mediolateral dimension was 2.4 (range: 0-6.3) mm in males and 2.6 (range: 0-6.2) mm in females. The maximum mediolateral dimension was found posterior to the central mediolateral dimension in the majority (202 out of 260) of cases. These findings point towards the asymmetry in the AP halves of the resected medial tibial condyle. Conclusion: Tibial components designed according to anthropometric measurements based on both Western and Asian populations do not perfectly meet the requirements of Turkish population. Designing different UKA prostheses for different populations are required for best fit.Publication Open Access Effect of body mass index on functional outcomes following arthroplasty procedures(2015-12-18T00:00:00Z) Polat, Gokhan; Ceylan, Hasan Huseyin; Sayar, Safak; Kucukdurmaz, Fatih; Erdil, Mehmet; TUNCAY, İBRAHİM; KÜÇÜKDURMAZ, FATİH; TUNCAY, İBRAHİMAIM: To evaluate the body mass index (BMI) change in arthroplasty patients and its impact on the patients- functional results.