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Dive into the research topics where Levent Celebi is active.

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Featured researches published by Levent Celebi.


Journal of Orthopaedic Trauma | 2011

The results of nonoperative treatment for three- and four-part fractures of the proximal humerus in low-demand patients.

Halil Yalçın Yüksel; Serdar Yimaz; Ertugrul Aksahin; Levent Celebi; Hasan Hilmi Muratli; Ali Bicimoglu

Objective: To evaluate the results of nonoperative treatment of three- and four-part fractures of the proximal humerus in patients who refused surgery or could not undergo surgery because of medical conditions. Design: Retrospective evaluation of prospective collected data. Setting: Educational and research hospital. Level IV, therapeutic case series. Patients: Eighteen patients (eight three- and 10 four-part fractures) were included. The mean age was 68.2 ± 13.8 years (range, 39–90 years). The mean follow-up was 39.1 ± 12.4 months (range, 24–60 months). Patients were grouped into two: Group A being younger than 65 years and Group B 65 years or older. Intervention: Standardized nonoperative treatment and follow-up protocols were used. Main Outcome Measurements: Functional and radiographic assessments were performed in posttreatment first year and at latest follow-up. Constant-Murley scores were also obtained for both shoulders. Results: The mean Constant-Murley score was 61.3 ± 13.5 (range, 40–85) at latest follow-up. Osteonecrosis was detected in five patients. All patients had significantly lower SF-36 scores for all subscales except mental health than the normal Turkish population. There was no significant difference between three- and four-part fractures regarding age and Constant-Murley scores. The mean Constant-Murley score of the Group A patients with three-part fractures was significantly higher when compared with the Group A patients with four-part fractures. There was no significant difference between patients with and without osteonecrosis regarding fracture types or the Constant-Murley scores at the latest follow-up. Conclusions: Although the individual fracture type does not have an influence on functional results, these results are better in patients younger than 65 years with three-part fractures. The results of the nonoperative treatment of these fractures are satisfactory even in elderly patients. The radiographic appearances did not correspond with the functional results.


Archives of Orthopaedic and Trauma Surgery | 2005

Magnetic resonance arthrographic evaluation of syndesmotic diastasis in ankle fractures

Hasan Hilmi Muratli; Ali Bicimoglu; Levent Celebi; Süreyya Boyacigil; Lale Damgaci; Abdullah Yalcin Tabak

IntroductionWe examined whether magnetic resonance arthrography (MRA) contributes to the diagnosis of syndesmotic complex disruption in ankle fractures. Patients suffering syndesmotic diastasis according to conventional radiographic criteria were evaluated by MRI and MRA.Material and methodsFifteen patients (15 ankles) with Denis-Weber type B and C fractures and were suspected of having syndesmotic diastasis considering tibiofibular clear space and tibiofibular overlap measurements in conventional radiographs were prospectively evaluated by MRI and MRA methods. Syndesmotic diastasis was diagnosed by radiographic, MRI, and MRA findings and by intraoperative observation and assessment criteria. Differences between MRI and MRA findings were tested statistically. Conventional radiography, MRI, and MRA results were analyzed by two independent observers, and interobserver concordance was also assessed.ResultsIn 15 patients regarded to have syndesmotic diastasis on conventional radiography the diagnosis was confirmed in 8 (53.3%) with MRI and 12 (80%) with MRA. Following overall assessment 13 of 15 patients (86.6%) were determined to have diastasis. There were statistically significant differences in diagnosis after MRI and after MRA. There was interobserver concordance in conventional radiographic, MRA assessments, and in assessments for anterior and posterior tibiofibular ligaments separately in MRI.ConclusionsThese results suggest that conventional radiography and MRI is not sufficient in assessing syndesmotic disruption, and that MRA can make an important contribution to diagnosis in ankle fractures.


Knee Surgery, Sports Traumatology, Arthroscopy | 2005

Bilateral patellar tendon rupture in a child: a case report.

Hasan Hilmi Muratli; Levent Celebi; Onur Hapa; Ali Bicimoglu

Patellar tendon rupture in children is very rare. When it occurs, patellar tendon is usually ruptured either from the upper end as a sleeve fracture of the patella or from lower end as an avulsion fracture of the tibial tuberosity. In this report, we present the case of an otherwise healthy 9-years-old boy who had subsequent bilateral patellar tendon ruptures through the midparts, which has not been published previously in the literature. Treatment was performed with primary end-to-end repair, reinforcement with cerclage wires and fresh-frozen achilles tendon augmentation for both sides.


Journal of Pediatric Orthopaedics B | 2006

Bensahel et al. and International Clubfoot Study Group evaluation of treated clubfoot: assessment of interobserver and intraobserver reliability.

Levent Celebi; Hasan Hilmi Muratli; Ertugrul Aksahin; Mehmet Firat Yagmurlu; Ali Bicimoglu

In order to assess interobserver and intraobserver reliability of an evaluation system of the International Clubfoot Study Group, 30 children treated for unilateral clubfoot and their radiographs were examined by three different observers. The mean intraobserver κ value was found to be 0.62. The mean interobserver κ value was 0.73. These κ values correlated with a substantial degree of agreement. Interobserver reliability for all subgroup evaluations (morphologic, functional and radiological) and total scores was 90% or over. This also indicates a good interobserver reliability. In conclusion, the Bensahel et al. and International Clubfoot Study Group outcome evaluation system may be used reliably for the assessment of outcome of the treatment of clubfoot.


Journal of Pediatric Orthopaedics B | 2005

Gait characteristics of patients with bilateral club feet following posteromedial release procedure.

Hasan Hilmi Muratli; Dağli C; Yavuzer G; Levent Celebi; Ali Bicimoglu

In this study we intended to evaluate the gait characteristics of children who had bilateral operated clubfeet, and to compare the results with gait parameters of children without clubfeet or lower extremity abnormalities. Fifteen children with bilateral plantigrade and asymptomatic clubfeet, operated bilaterally with posteromedial release method, were included in group P. Means±SD of age and follow-up time were 8.5±2.6 years (range, 4–14 years) and 7.7±2.8 years (range, 3–10 years), respectively. Age, sex, height-and weight-matched 24 children without clubfeet or lower extremity abnormalities were included in the control group (group C). Three-dimensional computerized gait analysis was performed for all subjects, and time–distance, kinematic and kinetic gait characteristics of the groups were compared. Time-distance characteristics of the groups were identical. Ankle plantar flexion angles, plantar flexor moment and generated power were significantly decreased in group P (P<0.05). Knee hyperextension during midstance was observed in 17 of 30 (57%) knees in the P group. Kinetic analysis revealed excessive knee valgus and flexion moments, as well as decreased second peak values of vertical ground reaction forces for group P. This study shows that even successfully operated, plantigrade and clinically asymptomatic children with bilateral clubfeet have significant gait deviations involving all lower limb joints. Future studies are needed to investigate the accountable factors of gait deviations and possible long-term musculoskeletal morbidity of operated children with bilateral clubfeet.


BMC Musculoskeletal Disorders | 2005

Comparison of plasma endothelin levels between osteoporotic, osteopenic and normal subjects

Hasan Hilmi Muratli; Levent Celebi; Onur Hapa; Ali Bicimoglu

BackgroundIt has been demonstrated that endothelins (ET) have significant roles in bone remodeling, metabolism and physiopathology of several bone diseases. We aimed to investigate if there was any difference between the plasma ET levels of osteoporotic patients and normals.Methods86 patients (70 women and 16 men) with a mean age of 62.6 (ranges: 51–90) years were included in this study. Patients were divided into groups of osteoporosis, osteopenia and normal regarding reported T scores of DEXA evaluation according to the suggestions of World Health Organization. According to these criteria 19, 43 and 24 were normal, osteopenic and osteoporotic respectively. Then total plasma level of ET was measured in all patients with monoclonal antibody based sandwich immunoassay (EIA) method. One-way analysis of variance test was used to compare endothelin values between normals, osteopenics and osteoporotics.ResultsEndothelin total plasma level in patients was a mean of 98.36 ± 63.96, 100.92 ± 47.2 and 99.56 ± 56.6 pg/ml in osteoporotic, osteopenic and normal groups respectively. The difference between groups was not significant (p > 0.05).ConclusionNo significant differences in plasma ET levels among three groups of study participants could be detected in this study.


Journal of Pediatric Orthopaedics B | 2004

Mechanoreceptor evaluation of hip joint capsule and ligamentum capitis femoris in developmental hip dysplasia: a preliminary study.

Hasan Hilmi Muratli; Ali Bicimoglu; Tabak Ya; Levent Celebi; Paker I

We aimed to determine if there are mechanoreceptors in the hip joint capsule and ligamentum capitis femoris (LCF) of patients with developmental dysplasia of the hip (DDH). We took capsule and LCF biopsies from 20 hips of 20 patients who were operated on because of DDH. The mean age was 10.2 months (range 6–20 months) at the time of surgery. There were 12 girls and eight boys. Teratologic and secondary hip dislocations were not included in this study. Full thickness, 0.5×0.5 cm anterior capsule and LCF portions were taken for biopsy specimen. Specimens were stained with hemotoxylin eosin and examined immunohistochemically using monoclonal antibody against S-100 protein. In both analyses no mechanoreceptor was found in any samples of capsule or LCF. In this preliminary study we could not find mechanoreceptors in the local anterior joint capsule and LCF of the hip in children with DDH. We think that additional studies are necessary in order to understand the mechanoreceptor characteristics of the hip joint in children not only with DDH but also in children with healthy hips.


Journal of Pediatric Orthopaedics | 2009

Immediate incorporated hip spica casting in pediatric femoral fractures: comparison of efficacy between normal and high-risk groups.

Ertugrul Aksahin; Levent Celebi; Halil Yalçn Yüksel; Onur Hapa; Hasan Hilmi Muratl; Cem Nuri Aktekin; Ali Bicimoglu

Background: Immediate hip spica casting is the most commonly used method for the treatment of pediatric femoral fractures. The main disadvantage of the method is the unacceptable shortening (>25 mm), which may occur during the treatment. Buehler et al described the so-called telescope test to identify the cases with a relatively high risk of unacceptable shortening. On the basis of this test, patients with an overriding of the fracture ends of more than 30 mm have a 20.4 times higher risk of unacceptable shortening compared with those with an overriding of less than 30 mm. This relatively higher risk of unacceptable shortening may be avoided by a hip spica cast, which is incorporated to a distal femoral traction pin. Methods: The study consists of 47 (26 boys and 21 girls) patients. Mean age was 40.3 months (range, 18 months to 6 years). Patients were divided into 2 groups according to the telescope test. Group 1 included patients with telescope test results of more than 30 mm. Group 2 included patients with telescope test results of 30 mm or less. All patients were treated with a hip spica cast, which is incorporated to a distal femoral traction pin within 8 hours of the initial trauma. During cast treatment, patients were followed up by weekly x-ray controls for the first month. Patients were assessed for unacceptable shortening and misalignment. Results: Mean (SD) shortening during cast treatment was 2.9 (5.1) mm on the treated site. Shortening was detected in 16 patients (88.9%) in group 1 and in 7 patients (24.1%) in group 2. A significantly higher number (P < 0.001) of patients developed shortening in group 1. However, unacceptable shortening (>25 mm) did not develop in any patient in both groups. There was no significant frontal plane malalignment in both groups (P > 0.05). Sagittal plane malalignment was significantly higher in group 1 (P < 0.05). Conclusions: Hip spica cast, which is incorporated to a distal femoral traction pin, avoids unacceptable shortening and frontal plane malalignment in pediatric femoral fractures, which even have a relatively high risk of unacceptable shortening based on the so-called telescope test. However, the technique cannot avoid sagittal malalignment. Level of Evidence: Level 3


Acta Orthopaedica et Traumatologica Turcica | 2003

[Cementless total hip replacement in patients with high total dislocation: the results of femoral shortening by subtrochanteric segmental resection].

A. Yalcin Tabak; Levent Celebi; Hasan Hilmi Muratli; M. Firat Yagmurlu; Cem Nuri Aktekin; Ali Bicimoglu

OBJECTIVES We evaluated the results of femoral shortening by subtrochanteric segmental resection in patients who underwent total hip replacement (THR) for high total dislocation of the hip. METHODS We performed THR in 19 hips of 16 patients (15 females, 1 male; mean age 41 years; range 22 to 55 years) with high total dislocation of the hip. All the patients had severe hip pain. In all cases, femoral shortening by subtrochanteric segmental resection and an anatomical reconstruction of the acetabulum were performed with the use of cementless femoral components and cementless acetabular components with screws, respectively. The Harris hip scoring system was used for functional assessments. Radiologic assessments were based on the DeLee and Charnley criteria for the acetabular component, and on the Gruen zones and the Engh criteria for the femoral component. The mean follow-up period was 44 months (range 22 to 79 months). RESULTS Union was achieved in all cases in a mean of 14 weeks (range 11 to 15 weeks). The mean leg length discrepancy decreased from 4 cm to 1.5 cm postoperatively. A positive Trendelenburg sign was found in 13 patients and four patients before and after surgery, respectively. The mean Harris hip score improved from 37 to 83 postoperatively. None of the patients developed deep infection, dislocation, sciatic nerve palsy, or nonunion at the osteotomy site. No clinical and radiologic signs of loosening were observed and no revisions were required. CONCLUSION Femoral shortening with subtrochanteric segmental resection in THR is a safe technique in patients with high total dislocation of the hip, leading to satisfactory functional results.


Journal of Pediatric Orthopaedics | 2009

The evaluation of hip muscles in patients treated with one-stage combined procedure for unilateral developmental dysplasia of the hip: part I: MRI evaluation.

Halil Yalçın Yüksel; Serdar Yilmaz; Ertugrul Aksahin; Levent Celebi; Semra Duran; Hasan Hilmi Muratli; Ali Bicimoglu

Background To assess the status of hip flexor and extensor muscles with MRI in patients with unilateral developmental dysplasia of the hip (DDH) after walking age who were treated with one-stage combined procedure. Methods Twenty-two patients operated upon with one-stage combined procedure for unilateral DDH were included in this study. All patients underwent complete tenotomy of the iliopsoas muscle hindering open reduction. All patients showed excellent results according to the modified McKay criteria of Barrett and type 1 hips according to radiologic criteria of Severin at the latest follow-up. MRI assessment of iliopsoas, rectus femoris, tensor fasia lata, sartorius, and gluteus maximus muscles was performed and muscles of the hip that was operated upon were compared with the hip that was not. In addition, the iliopsoas muscle was examined for reattachment and the effect of reattachment was evaluated. Results Mean age was 154.4±34.6 (110 to 216) months. Mean follow-up was 112.6±32.0 (68 to 159) months. Reattachment of the iliopsoas was observed in 7 (32%) patients, with no significance in terms of age, postoperative follow-up period, or the duration of the postoperative period. Atrophy in the hip that was operated upon was significant in iliopsoas, rectus femoris, tensor fasia lata, and gluteus maximus muscles when compared with the hip that was not. No significance was detected in the sartorius muscle between hips that were operated upon and those that were not. Cross-sectional areas of tensor fascia lata, rectus femoris, sartorius, and gluteus maximus muscles were not significantly different between patients with and without reattachment of iliopsoas. The width of the iliopsoas muscle was significantly lowered in patients without reattachment. Conclusions Patients with DDH treated with combined procedures including complete iliopsoas tenotomy do not have hip muscles similar to hip muscles that have not been operated upon, despite excellent radiologic and clinical results. These patients can be affected by muscular changes in the long term. Follow-up by conventional radiologic and clinical criteria alone may not be enough, and patients may have problems, as in our series, that cannot be detected by conventional radiologic and clinical assessments. Level of Evidence Level IV, Therapeutic case series.

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Hasan Hilmi Muratli

Middle East Technical University

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Onur Hapa

Dokuz Eylül University

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Cem Nuri Aktekin

Yıldırım Beyazıt University

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Ayla Akbal

Çanakkale Onsekiz Mart University

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Erkam Kömürcü

Çanakkale Onsekiz Mart University

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Murat Ersöz

Yıldırım Beyazıt University

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