Publications by authors named "Ata Can"

Objective: Adenomyosis is a chronic inflammatory illness that depends on estrogen. In addition to its immune regulatory effects in chronic diseases, vitamin D also plays roles in regulating normal cell growth. In the present study, the purpose was to evaluate the possible relationships between serum 25-OH vitamin D levels and clinical and laboratory parameters in patients who were histopathologically diagnosed with adenomyosis.

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Purpose: To evaluate maternal and neonatal outcomes in patients with intrahepatic cholestasis of pregnancy (ICP).

Methods: Patients who gave birth in our hospital between January 2018 and March 2022 were retrospectively reviewed from the hospital database and patient file records. The study comprised 1686 patients, 54 in the ICP group and 1632 controls.

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Aim: We planned this study to assess endometrial cancer (EC) patients who had late metastasis.

Materials And Methods: This retrospective study constituted a review of the records of patients who were diagnosed with EC and underwent hysterectomy at the Gynecologic Oncology Clinic between 1996 and 2018. Relapses occurring after the first three years following primary treatment of EC are considered late recurrences.

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Objective: The aim of this study was to assess the effect of lymphovascular space invasion on recurrence and disease-free survival in patients with low-risk endometrial cancer.

Methods: The study included patients with stage 1A, grade 1-2 endometrioid endometrial cancer who underwent a total hysterectomy and bilateral salpingo-oophorectomy with pelvic lymphadenectomy. Independent prognostic predictors of endometrial cancer recurrence were assessed using the Cox regression model.

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Background: This study aimed to evaluate and analyze the prevalence and radiological characteristics of the fabella in the Turkish population, detecting differences between genders by examining magnetic resonance imaging (MRI) images of subjects.

Methods: A total number of 504 patients aged >18 years who were admitted to the orthopedics and traumatology clinic between November 2018 and October 2020 were included in this retrospective cross-sectional study. Bilateral MRI images that were taken from each patient were randomly selected.

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Chondroblastoma located in the talus is a rare incidence, and due to the weightbearing duty of the talus, the results of local excision may not be favorable. While the volume of the tumor increases, more sophisticated techniques may be undertaken. Cell-free matrix application for extensive osteochondral defects is gaining popularity for its structural support when it is used with microfracture and autograft application.

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Background: Charcot's neuroarthropathy (CN) treatment is still controversial, and the results are controversial. Owing to patient comorbidities, surgical intervention carries a high risk of complications. Thus, foreseeing the possible results of planned treatment is crucial.

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Objective: This prospective study aimed to evaluate the changes in the sagittal alignment after total hip arthroplasty (THA) in patients with hip osteoarthritis (OA) secondary to Crowe type-IV developmental dysplasia of the hip (DDH) and whether THA would contribute to the relief of low-back pain (LBP).

Methods: A total of 27 patients (2 men and 25 women) with bilateral hip OA secondary to Crowe type-IV DDH were enrolled in this study. Their mean age at the time of surgery was 40,36±12,35.

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Objective: The aim of this study was to determine the effects of age and body mass index (BMI) on the functional outcomes, satisfaction rates, and recovery time after open debridement and reattachment surgery in non-athletic patients with insertional Achilles tendinopathy (IAT).

Methods: In this retrospective study, 33 non-athletic patients (34 ankles) in whom open debridement and reattachment surgery was performed for IAT from 2006 to 2016 were included. Change in pain intensity was assessed using a Visual Analogue Scale (VAS) preoperatively and at the final follow-up.

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Introduction And Objective: Total hip arthroplasty with rectangular femoral component and transverse osteotomy for patients with Crowe type 3 or 4 dysplasia yields successful results with varying radiological findings. This study aims to investigate the surgery and patient related factors associated with successful clinical and radiological results.

Patients And Methods: Fifty hips of 41 patients were retrospectively examined.

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Background: Total hip arthroplasty (THA) involving shortening osteotomy for patients with Crowe type 3 or 4 dysplasia is a challenging surgical procedure. This study aims to demonstrate that rectangular femoral component use in anatomical reconstructions with THA and transverse shortening osteotomy yields successful results without the use of bone graft or any fixation material at the osteotomy site.

Methods: Fifty hips from 41 patients were identified retrospectively as per study objectives.

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Objective: This study aimed to evaluate whether a history of a pelvic osteotomy or proximal femoral osteotomy compromises the outcomes of total hip arthroplasty in patients with dysplastic coxarthrosis.

Methods: The results of total hip arthroplasty in 240 hips of 172 patients without previous pelvic osteotomy or proximal femoral osteotomy were compared to 118 hips of 88 patients with a previous pelvic osteotomy or proximal femoral osteotomy (osteotomy group). Technical difficulties and rates of complications during surgery, operative time, estimated blood loss, rates of postoperative complications, and pre- and postoperative Harris Hip Scores and visual analog scale pain scores were compared between the two groups.

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Background: Total hip arthroplasty in severe dysplasia is challenging due to diminished periacetabular bone stock and the highly placed femoral head. Although anatomical reconstruction of the hip, with required interventions such as subtrochanteric osteotomy and graft usage, is the main aim of the procedure, good long-term clinical outcomes of the high hip center technique have also been reported. Information regarding the effect of hip center placement on gait characteristics is limited; therefore, the aim of this study is to analyze the differences in gait parameters between the high hip center technique and anatomical reconstruction of the hip.

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Objective: The aim of this study was to assess the effectiveness of microfracture and cell free hyaluronic acid (HA) based scaffold combination in the treatment of talus osteochondral defects (OCD).

Methods: This study retrospectively evaluated the clinical results of the 20 patients (14 males and 6 females, mean age at the time of surgery: 32.9 years (range: 16-52 years)) who were treated with MFx and cell-free HA-based scaffold combination for talus OCD smaller than 1.

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Background: The optimal rehabilitation program for patients with post-total hip arthroplasty (THA) after developmental dysplasia of the hip (DDH) remains unclear.

Objective: The aim of the present study was to evaluate the clinical outcomes, to define a postoperative rehabilitation program, and to report the complication rate of THA in patients with DDH.

Methods: DDH hips (n= 89) were recruited.

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Unlabelled: Fertilization problems are the major problems that may be faced in 30-55% of the patients during an intracytoplasmic sperm injection (ICSI) cycle. A successful oocyte activation depends on factors related to both sperm and oocyte, and one of the important factors that mediates the process is Ca concentration within the oocyte. Artificial oocyte activation (AOA) is a method used for fertilization problems that commonly involve the usage of Ca ionophores and is usually used in problems such as total fertilization failure (TFF) and globozoospermia.

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Objectives: High tibial osteotomy (HTO) is a well-established procedure for the treatment of medial knee osteoarthritis originating from malalignment of the lower extremity. The current study was designed to evaluate the clinical and radiographic results of closed-wedge HTO for the treatment of medial knee osteoarthritis and to reveal factors affecting the outcome.

Methods: A retrospective study was conducted with 138 patients who were operated on for medial knee osteoarthritis between 2000 and 2007 using closed-wedge HTO.

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Hemophilia is a disorder of blood coagulation with X-linked recessive inheritance. It is characterized by uncontrollable hemorrhage, and 80% of these occur intraarticularly. With recurrent hemarthrosis, recurrent synovitis occurs, which eventually leads to the formation of articular contractures.

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Background: We argue that 1-stage bilaterally total hip arthroplasty (THA) could be acceptable in bilateral coxarthrosis because of high-riding developmental dysplasia of the hip (DDH).

Methods: Sixty-nine cases (51 patients) of high-riding DDH in patients who underwent THA from 2010 to 2013 were reviewed. Patients were divided into 2 groups: unilateral (group 1) and 1-stage bilateral surgery (group 2).

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Tibiofemoral instability is a common complication after total knee arthroplasty (TKA), accounting for up to 22% of all revision procedures. Instability is the second most common cause of revision in the first 5 years after primary TKA. In this study, 13 knees with tibiofemoral instability after TKA were identified among 693 consecutive primary TKA procedures.

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Total knee arthroplasty (TKA) is a surgical procedure which is widely used in the treatment of gonarthrosis secondary to rheumatoid arthritis (RA). The incidence of stress fractures in tibia in the patients with RA is higher compared to normal patients. In this study, we report two cases of TKA and intramedullary nailing in RA patients with severe knee arthritis and tibial nonunion.

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Objective: Idiopathic flexible pes planus (IFPP) is a common foot problem in adolescents and young adults. Hypothesis for the present study was that combination of procedures for IFPP can achieve results in adolescents and young adults that are as good as those seen in adult-acquired pes planovalgus (AAPP) treatment in adults.

Methods: A total of 21 feet of 18 patients (10 boys, 8 girls) with mean age of 15.

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Objective: A knee fusion is associated with considerable restrictions, including the inability to sit properly, use public transportation, and climb stairs. The purpose of this study is to report and discuss our cases of spontaneous ankylosed knees which were taken down and underwent total knee arthroplasty (TKA).

Methods: Six patients who experienced spontaneous ankylosis of the knee undergoing conversion to TKA between 2003-2012 were enrolled retrospectively in this study.

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Introduction: The aim of this study was to determine how often the appendix is involved or the primary source of cancer in women undergoing surgery for mucinous borderline ovarian tumour (mBOT) or invasive mucinous ovarian tumour (IMOT) and to evaluate whether appendectomy is necessary.

Methods: The hospital database was searched for women who underwent surgery and whose final diagnosis was mBOT, IMOT or mucinous appendix carcinoma between 1998 and 2014.

Results: One hundred and twenty-nine cases were identified, including 69 mBOT, 51 IMOT and nine primary mucinous appendix carcinomas.

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Objective: The aim of this study was to evaluate the results of the endoscopic calcaneoplasty technique for the treatment of retrocalcaneal bursitis and Haglund's disease.

Methods: This study included 30 feet of 28 patients who underwent endoscopic surgery for Haglund's disease between 2003 and 2011. The inflamed bursa and posterosuperior surface of the calcaneus were removed with a shaver and bone resection performed until there was no friction on the Achilles tendon with the ankle in dorsiflexion.

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