Yazar "Öztürk, Çağatay" seçeneğine göre listele
Listeleniyor 1 - 16 / 16
Sayfa Başına Sonuç
Sıralama seçenekleri
Öğe Comparison of the effects of magnetically controlled growing rod and tradiotinal growing rod techniques on the sagittal plane in the treatment of early-onset scoliosis(Korean Neurosurgical Soc, 2019) Erdoğan, Sinan; Polat, Barış; Atıcı, Yunus; Özyalvaç, Osman Nuri; Öztürk, ÇağatayObjective : Comparing the effects of magnetically controlled growing rod (MCGR) and traditional growing rod (TGR) techniques on the sagittal plane in the treatment of early-onset scoliosis (EOS). Methods : Twelve patients were operated using dual MCGR technique in one center, while 15 patients were operated using dual TGR technique for EOS in another center. Patients' demographic characteristics, complications and radiological measurements such as cobb angle, thoracic kyphosis, lumbar lordosis, T1-S1 range (mm), proximal junctional angle, distal junctional angle, sagittal balance, coronal balance, pelvic incidence, sacral slope and pelvic tilt were assessed and compared in preoperative, postoperative and last follow-up period. Results : Age and sex distributions were similar in both groups. The mean number of lengthening in the MCGR group was 12 (8-15) and 4.8 (3-7) in the TGR group. Two techniques were shown to be effective in controlling the curvature and in the increase of T1-S1 distance. In TGR group, four patients had rod fractures, six patients had screw pull-out and four patients had an infection, whereas three patients had screw pull-out and one patient had infection complications in the MCGR group. Conclusion : There was no significant difference between the two groups in terms of cobb angle, coronal and sagittal balance and sagittal pelvic parameters. MCGR can cause hypokyphosis and proximal junctional kyphosis in a minimum 2-year follow-up period. The implant-related complications were less in the MCGR group. However, larger case groups and longer follow-up periods are required for the better understanding of the superiority of one method on other in terms of complications.Öğe Comparison of the radiological parameters between dynamic-referencing tactile guidance robotic system and microplasty (r) instrumentation in unicompartmental knee arthroplasty(TURKISH JOINT DISEASES FOUNDATION, 2022) Çabuk, Haluk; Turan, Kaya; Muratoğlu, Osman Görkem; Ergün, Tuğrul; Öztürk, Çağatay; Ertürer, Ramazan ErdenObjectives: This study aims to compare the radiological outcomes of unicompartmental knee arthroplasty (UKA) performed by a navigation-based robotic system versus Microplasty (R) instrumentation. Patients and methods: Between January 2018 and January 2019, a total of 90 knees of 75 patients (65 males, 10 females; mean age: 62.0 +/- 9.4 years; range, 50 to 73 years) were included. Among these, 54 knees underwent Oxford mobile-bearing UKA with an Microplasty (R) instrumentation set and 36 knees were operated with the aid of a Restoris (R) MCK with MAKO navigation-based robotic system. Postoperative anteroposterior and lateral X-rays of all patients were evaluated according to nine different parameters. On the femoral side, femoral varus-valgus angle, flexion-extension angle, femoral condyle posterior fit; on tibial side, tibial component varus/valgus, tibial posterior slope, medial, anterior, posterior and lateral fit of tibial component assessed. Results: There was no significant difference between groups in terms of age, sex, and affected side. On the femoral side, no significant difference was observed in the component position between groups. On the tibial side, tibial component medial fit (p=0.032) and anterior fit (p=0.007) were better in navigation-based robotic system group. Conclusion: Microplasty (R) instrumentation may lead to comparable implant positioning compared to a tactile-based navigated robotic instrumentation.Öğe Comparison of weight-based versus standard dosing of tranexamic acid for blood loss and transfusion amount in knee arthroplasty without tourniquet(ACTA MEDICA BELGICA, 2022) Güler, Olcay; Çarkçı, Engin; Çerçi, Mehmet Halis; Gümüşsuyu, Gürkan; Öztürk, ÇağatayThe aim of the study is to compare weight-based versus standard dosing of intravenous (IV) tranexamic acid (TXA) for blood loss and transfusion amount in total knee arthroplasty (TKA) without a tourniquet. A total of 99 patients were divided into two groups: Group 1 (standard): 1 g of IV TXA 30 min before skin incision, and 1 g at postoperative 30 min and 3 h. Group 2 (weight-based): 10 mg/kg IV TXA 30 min before the skin incision, and 10 mg/kg at postoperative 30 min, and 3 h. Hemoglobin levels, before, and 1, and 2 days after the operation, postoperative amount of decrease in hemoglobin levels, and amount of erythrocyte transfusion were recorded. Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) and Knee Society Score (KSS) were applied in the evaluation of TKA results preoperatively, and at 1., 3., 6., and 12. months, postoperatively. In both study groups, hemoglobin levels in male patients dropped significantly more deeply than female patients. Also, in both study groups, hemoglobin levels were significantly lower in patients with comorbid illnesses. A statistically significant difference was not detected between both groups in terms of pre-and postoperative WOMAC scores, KSS knee scores, and KSS function scores. Our study showed that standard and weight-based dosing of IV TXA treatments were similar in efficacy and safety. Both treatments reduce blood loss and the need for transfusion. Also, there was no significant difference in terms of reliability between two groups.Öğe Does obesity make transforaminal lumbar interbody fusion more difficult: retrospective analysis(Cureus Inc, 2018) Gökçen, Hüseyin Bahadır; Öztürk, ÇağatayObjective To evaluate and compare peri-operative technical difficulties associated with single-level transforaminal lumbar interbody fusion (TLIF) and peri-operative outcomes between obese and non-obese patients. Subjects and methods The data, including age, blood transfusion volume, preoperative hemoglobin/hematocrit levels, operative time, blood loss, fluoroscopy time, skin incision length, and body mass index (BMI), of 53 patients undergoing single-level TLIF (L4-5 or L5-S1) between 2016 and 2018 were analyzed retrospectively. The patients were divided into two groups: BMI < 30 kg/m(2) and BMI 30-39.9 kg/m(2). Parameters were subjected to statistical analysis according to the BMI. Results There were 26 patients in the BMI < 30 m(2) group and 27 patients in the BMI 30-39.9 kg/m(2) group. The average age of the patients was 60.8 years (30-70 years), and the average BMI was 29.9 kg/m(2)(23.1-39.9 kg/m(2)). The fluoroscopy times and skin incision lengths were significantly different between the two groups (p < 0.05). Conclusions An experienced surgical team can safely apply the TLIF procedure in patients with obesity but it should be taken into consideration by surgeons before surgery. Some modifications in the surgical technique, including, further lateral dissection and wider skin incision in the TLIF technique for obese patients may be required during the procedure. This approach makes TLIF technique easier and safer in obese patients. The longer fluoroscopy times in obese patients indicate that more radiation exposure occurs during TLIF and that necessary precautions should be taken for maintaining surgical team and patient health.Öğe The effect of disc height on cage size in transforaminal interbody fusion (TLIF)(Logos Medical Publishing, 2018) Gökçen, Hüseyin Bahadır; Erdoğan, Sinan; Şükür, Erhan; Uyar, Ahmet Çağrı; Öztürk, ÇağatayAim: Transforaminal interbody fusion (TLIF) technique is used to provide fusion in spine surgery. The technique itself has technical details and can lead to serious complications if not paid attention to them. Determining the size of the TLIF cage used in this process is also an important technical detail. Method: In this retrospective study we wanted to evaluate the predictability of the cage size used in TLIF surgery. For this purpose, we examined the disc heights and cage sizes of 22 patients who underwent TLIF surgery. Results: Nine of the patients were male, 13 were female with an overall mean age of 52.3 yeras (30-72). There was no statistically significant correlation between the sizes of the cages used, and disc heights. Conclusion: We think that taking care of technical details is appropriate for determination of the cage size used in TLIF procedure. © 2018, Logos Medical Publishing. All rights reserved.Öğe The effect of weekday preference on length of stay in unilateral bicompartmental total knee arthroplasty(Galenos Publishing House, 2022) Turan, Kaya; Ergün, Tuğrul; Muratoğlu, Osman Görkem; Çabuk, Haluk; Öztürk, ÇağatayAim: There are few studies in the literature evaluating the effect of the day of surgery on length of hospital stay. This study evaluates the effect of the day of surgery on the duration of hospitalization in unilateral primary total knee arthroplasty (TKA) in a group of hospitals providing wide-ranging health services and clarifies the implications for reducing economic burdens. Methods: Between March 2020 and January 2022, patients treated by TKA with the code P612420 according to the Health Practice Communique were retrospectively scanned in a group of hospitals with different levels. Patients who underwent bilateral TKA on the same day or during hospitalization, underwent any secondary surgical procedures, or developed early complications were excluded from the evaluation. Results: The data of 743 patients who underwent unilateral TKA were evaluated. The mean hospital stay was 3.32 (2-14) days. It was seen that the shortest hospitalization periods were in the surgeries performed on Saturday (3.15 days), while the longest ones were on Friday (3.62 days). It was found that the patients who underwent surgery on Saturday had significantly shorter hospital stays than on Friday (p=0.006). Conclusion: While planning TKA, the choice of surgery day is a factor that should be addressed to reduce hospital stays and, therefore, costs. © 2022 by The Medical Bulletin of Istanbul Haseki Training and Research Hospital The Medical Bulletin of Haseki published by Galenos Yayinevi.Öğe The effectiveness of dual-magnetic controlled growth rods in the distraction period in the treatment of early-onset scoliosis(2019) Erdoğan, Sinan; Polat, Barış; Gökçen, Hüseyin Bahadır; Çarkcı, Engin; Gürpinar, Tahsin; Öztürk, ÇağatayAim: The aim of the present study is to evaluate our dual magnetic controlled growing rod practices in early-onset scoliosis in terms of curve correction and control, and the effect on sagittal and coronal balance until definitive fusion surgery. Material and Methods: Ten patients under 10 years of age who had a major curvature of more than 30 degrees with the diagnosis of early-onset scoliosis and were operated on between 2014-2018 were included in the study. The mean age of the patients was 8.8 years (range, 7-10) and the mean follow-up was 26 months (range, 12-36). Magnetic rod was distracted at between 12-week intervals with a mean distraction per patient of 8.2 times (range, 6-12). Cobb angle, T1-T12 kyphosis angle, T1-S1 lengths, the coronal and sagittal balance were all evaluated. Results: The mean pre-operative, post-operative and last follow-up Cobb angle results were 54°±16 (range, 40-88), 28°±14 (range, 10-55) and 30°±16 (range, 10-59), respectively (p<0.05). The mean pre-operative, post-operative and last follow-up T1-S1 lengths were 276 ± 53 mm (range, 170-365), 309±49 mm (range, 207-385) and 348±55 mm (range, 227-405), respectively (p<0.05). The mean pre-operative, post-operative and last follow-up kyphosis angle was 49°±18 (range, 21-74), 22°±8 (range, 10-39) and 21°±5 (range, 12-28), respectively (p<0.05). No complications were observed during the operation, outpatient distraction and at the last follow-up. Conclusion: In our short-term follow-up, the dual-magnetic rod technique allowed the spinal growth and control of scoliosis and lengthening.Öğe EFFECTS OF OBESITY ON ELECTIVE SPINAL SURGERY(2018) Gökçen, H. Bahadır; Çarkçı, Engin; Kemah, Bahattin; Şükür, Erhan; Öztürk, ÇağatayBackground: Obesity (Body Mass Index > 30 kg/m2) is currently a public health problem with increasing incidence. Obesity increases the challenges and complications of surgery in all surgical branches. In this study, we aimed to evaluate the intraoperative and perioperative complications of obesity encountered in spinal surgery.Materials and Methods: All patients undergoing elective spinal surgery in one orthopedic surgery practice between 2017 and 2018 were included in this study. Patient demographics, body mass index (BMI), preoperative hemoglobin and hematocrit values, volume of blood transfused, incision lengths, number of surgical levels, operational time, and amount of bleeding were retrospectively identified. Patients were divided into two groups according to BMI levels (Group A, < 30kg/m2; Group B > 30 kg/m2), and statistical analyses were performed using the Student’s t and Mann-Whitney U tests.Results: Seventy-seven patients with a mean age of 57.8 years (range, 19–72) were included in this study. Their mean BMI was 29.3 kg/m2 (19.9–39 kg/m2). The mean BMI of Group A was 25.7 kg/m2 and that of Group B was 34.6 kg/m2. The amount of bleeding, number of surgical levels, and skin-incision length were statistically significantly different between the two groups. The mean values of all of these parameters were higher in Group B.Conclusion: Although numerous factors play roles in operational success, we believe that identifying obesity in a patient is important for pre- and postoperative surgical preparation by the operation team.Öğe Effects of obesity on elective spinal surgery(2018) Gökçen, H. Bahadır; Kemah, Bahattin; Çarkçı, Engin; Şükür, Erhan; Öztürk, ÇağatayBackground: Obesity (Body Mass Index > 30 kg/m2) is currently a public health problem with increasing incidence. Obesity increases the challenges and complications of surgery in all surgical branches. In this study, we aimed to evaluate the intraoperative and perioperative complications of obesity encountered in spinal surgery. Materials and Methods: All patients undergoing elective spinal surgery in one orthopedic surgery practice between 2017 and 2018 were included in this study. Patient demographics, body mass index (BMI), preoperative hemoglobin and hematocrit values, volume of blood transfused, incision lengths, number of surgical levels, operational time, and amount of bleeding were retrospectively identified. Patients were divided into two groups according to BMI levels (Group A, < 30kg/m2; Group B > 30 kg/m2), and statistical analyses were performed using the Student’s t and Mann-Whitney U tests. Results: Seventy-seven patients with a mean age of 57.8 years (range, 19–72) were included in this study. Their mean BMI was 29.3 kg/m2 (19.9–39 kg/m2). The mean BMI of Group A was 25.7 kg/m2 and that of Group B was 34.6 kg/m2. The amount of bleeding, number of surgical levels, and skin-incision length were statistically significantly different between the two groups. The mean values of all of these parameters were higher in Group B. Conclusion: Although numerous factors play roles in operational success, we believe that identifying obesity in a patient is important for pre- and postoperative surgical preparation by the operation team.Öğe The effects of patient related factors on hidden and total blood loss in single-level open transforaminal lumbar interbody fusion surgery(Acta Orthopaedica et Traumatologica Turcica, 2022) Kara, Gökhan Kürşat; Kavak, Huseyin; Gökçen, Bahadır; Turan, Kaya; Öztürk, Çağatay; Aydınlı, UfukObjective: The aim of this retrospective study was to identify the amount of TBL and HBL and analyse the risk factors using multivariate linear regression analysis during single-level OTLIF surgery. Methods: In this study 62 patients (32 male, 30 female, mean age 49.22 ± 13.26) who underwent single-level interbody fusion proce dures by a single surgeon between 2015 and 2021 were included. Retrospectively, relevant statistics regarding body mass index (BMI), American Society of Anesthesiologist Score (ASA), preoperative mean arterial pressure (MAP), and age were gathered. Preoperative MR images were used to assess and measure radiological parameters such as skin-disc distance (SDA), canal area (CA), paravertebral muscle area (PVMA),lumbosacral maximum subcutaneous fat thickness (LSMSF), operation level subcutaneous fat thickness (OPSF) and spi nous process length (SPL).Total blood loss (TBL) was calculated according to Nadler's formula. Hidden blood loss (HBL) was measured by deducting the measured (visible) blood loss from TBL. TBL, HBL and their relationship with preoperative parameters were assessed. Results: HBL was determined to be significantly higher in older patients (P = 0.012). MAP was seen to have a statistically significant cor relation with operating time (P = 0.002), operative bleeding (P = 0.002), TBL (P = 0.006), and HBL (P = 0.001), and an inverse correlation with postoperative drainage (P = 0.007). The ASA scores were observed to be statistically significantly correlated with TBL (P = 0.001), and HBL (P = 0.001). LSMSF showed a significant correlation with TBL (P = 0.005) and HBL (P = 0.002). OPSF was determined to be correlated with TBL (P = 0.011), HBL (P = 0.009) and length of stay in hospital (P =0.034). SDD was correlated with TBL (P =0.043), and SPL with HBL (P = 0.013). It was shown that age (P =0.012), MAP (P =0.001), ASA (P =0.001), LSMFS (P = 0.002), OPSF (P = 0.009), SPL (P = 0.013) were risk factors for HBL. According to multivariate logistic regression analysis; two anatomical factors LSMSF and SPL were independent risk factors for HBL (P < 0.05). Conclusion: This results of this study have revealed that most patient-related parameters have a significant effect on HBL and TBL.The study has also demonstrated that LSMSF and SPL are independent risk factors for HBL. Level of evidence: Level IV, Therapeutic Study.Öğe Factors affecting the length of hospitalization after elective spinal surgery Length of hospitalization after elective spinal surgery(BAYRAKOL MEDICAL PUBLISHER, 2021) Tekin, Sezgin Bahadır; Gökçen, H. Bahadır; Kemah, Bahattin; Öztürk, ÇağatayAim: In this study, it was aimed to investigate the factors affecting the length of hospital stay of patients who underwent elective spinal surgery. Material and Methods: A total of 120 patients who underwent elective spinal surgery between 2015 and 2018 were included in the study (29 men and 91 women). The mean age of the patients was 62.2 (Mean+/-13.9 SD) years. For each patient, data such as preoperative hemoglobin and albumin levels, age, gender, instrumentation level, revision surgery, preoperative anticoagulant use, duration of surgery, and bleeding volume were recorded. Results: Among the 120 patients participating in the study, 31 underwent revision surgery and 89, primary surgery. Statistically significant correlation was found between age and length of hospital stay (p=0.001), between instrumentation level and length of stay (p<0.001), between preoperative albumin level, blood loss and length of stay (p<0.001). There was a moderate and statistically significant correlation between the duration of the operation and the length of hospitalization (p<0.001). There was no statistically significant correlation between preoperative hemoglobin levels and length of hospitalization (p=0.247). Discussion: There are many modifiable and unchangeable factors that affect the length of hospital stay after elective spinal surgery. By evaluating these factors preoperatively, the length of hospitalization can be estimated.Öğe Ossification of the ligamentum flavum at the thoracic and lumbar region in an achondroplastic patient(Elsevier Science Inc, 2019) Gökçen, Hüseyin Bahadır; Öztürk, ÇağatayBACKGROUND: Achondroplasia, a genetic disorder of bone growth, produces specific clinical features of the extremities and spine. Spinal stenosis, seen in patients with achondroplasia, is a congenital disorder related to premature fusion of the pedicles to the lamina. It can be caused by ossification of the ligamentum flavum, which is rare in patients with achondroplasia. CASE DESCRIPTION: We report a rare congenital spinal stenosis with ossification of the ligamentum flavum and thoracolumbar kyphosis deformity in a 24-year-old man with dwarfism and achondroplasia. He was treated with posterior instrumentation and decompression with a wide laminectomy. CONCLUSIONS: Treatment of the deformity and the rare condition of ligamentum flavum in a patient with achondroplasia resulted in improved neurologic status and symptoms. To our knowledge, this is the first case report including treatment for both the deformity and thoracic and lumbar ossified ligamentum flavum lesion in a patient with achondroplasia.Öğe A rare case of T1-2 thoracic disc herniation mimicking cervical radiculopathy(Elsevier Science Bv, 2017) Gökçen, Hüseyin Bahadır; Erdoğan, Sinan; Gümuşsuyu, Gürkan; Öztürk, Sidar; Öztürk, ÇağatayIntroduction Thoracic disc herniation is not as common as other disc herniations seen at other levels of spinal column. Th1-Th2 disc herniation is an extremely rare condition. Physical and cautious radiological examination is significantly important for diagnosis. Case Presentation We report a 45 years old male case with complaint of neck pain radiating to right upper extremity. The physical examination revealed Th1 radiculopathy symptoms. According to his images degeneration at C6-7 level and right T1 root compression due to Th1-Th2 disc herniation at foraminal region were evaluated. The patient underwent hemilaminectomy, foraminatomy and discectomy at T1-T2 level via posterior approach. Conclusion T1-2 level thoracic disc herniation can accompany with cervical region problems and some syndromes can mimic Th1 radiculopathy symptoms. The aim of this case report is to keep on mind of this rare condition and to emphasize the importance of physical findings and correlations with magnetic resonance imaging.Öğe The results of hemivertebra resection by the posterior approach in children with a mean follow-up of five Years(Hindawi Ltd, 2017) Ertürer, Ramazan Erden; Kılınç, Bekir Eray; Gökçen, Hüseyin Bahadır; Erdoğan, Sinan; Kara, Gökhan Kürşat; Öztürk, ÇağatayAim. To evaluate the radiologic and clinical results of patients who underwent deformity correction and stabilization for congenital spinal deformities using pedicle screws after hemivertebra resection. Material and Method. Nine patients, mean age 9.2, who underwent posterior hemivertebrectomy and transpedicular fixation for congenital spinal deformity and had longer than five years of follow-up were evaluated retrospectively. The hemivertebrae were located in the thoracic region in 4 patients and thoracolumbar transition region in 5 patients. The patients were evaluated radiologically and clinically in the postoperative period. Results. Mean length of follow-up was 64.2 months. The mean operating time was 292 minutes. The mean blood loss was 236 mL. The average hospitalization timewas 7 days. The amount of correction on the coronal planeswasmeasured as 31%. Themean segmental kyphosis angle was 45.7 degrees preoperatively and it wasmeasured 2.7 degrees in the follow-up period. There were no statistically significant differences between the early postoperative period and final follow-up X-rays with respect to coronal and sagittal plane deformities. Conclusion. The ability to obtain a sufficient and balanced correction in the cases accompanied by long compensator curvatures that have a structural character in hemivertebra may require longer fusion levels.Öğe Sagittal orientation and uniform entry for thoracic pedicle screw placement with free-hand technique: a retrospective study on 382 pedicle screws(Elsevier Science Bv, 2018) Gökçen, Hüseyin Bahadır; Erdoğan, Sinan; Öztürk, Sidar; Gümuşsuyu, Gürkan; Bayram, İrem; Öztürk, ÇağatayBackground: One of the most important factors in obtaining a successful outcome in spinal surgery is appropriate placement of the pedicle screw. A number of different techniques are used to achieve successful pedicle screw placement. The free-hand technique has the advantage of no requirement for radiation exposure, but its success is highly dependent on surgeon experience. Here, we describe our entry point and perioperative sagittal orientation method, and evaluate postoperative sagittal alignment of pedicle screws with the free-hand pedicle screw placement technique. Materials and methods: Eighty-two patients undergoing spinal surgery between 2015 and 2016 were included in this study. Pedicle screw placement was evaluated retrospectively on postoperative anterior-posterior (A-P) and lateral load-bearing radiographs of the entire spinal column. The vertebral body was divided into five areas in the lateral plane. Sagittal orientation of the pedicle screws on lateral radiographs was evaluated by two spine surgeons with 3 years of experience and one radiologist experienced in musculoskeletal radiology, with each observer evaluating the image twice according to a 1-month interval. Results: A total of 382 pedicle screws were evaluated. There was no statistically significant difference between the first and second measurements, performed by individual observers, and there was good concordance among the three observers. Conclusions: Use of a uniform entry point at all levels may increase the effectiveness of the free-hand technique and decrease the pedicle screw misplacement rate. Our technique may standardize the free-hand technique, which does not require radiation exposure, and make it more practical to apply uniformly.Öğe Spinal augmentation: how to choose the best candidate?(Springer London Ltd, 2018) Öztürk, ÇağatayThe overall management principles for treating spinal injuries focuses on maximizing clinical outcome by obtaining and maintaining spinal stability and optimizing neurologic function. An optimal treatment method should reduce the detrimental effects of injury, reduce pain and suffering, improve functional outcome and quality of life, provide the best outcome with the least amount of associated morbidity. In osteporotic patients without neurological deficit; we can do indirect reduction and kyphoplasty, indirect reduction and titanium vertebral body stent or percutaneous cement augmented pedicle screw fixation and kyphoplasty or titanium vertebral body stent. In the presence of neurological deficit; anterior decompression with mini open or endoscopic route is necessary.
