Publications by authors named "Ozguer Cetik"

Purpose: To evaluate the variability in intraoperative fluid management during adult spinal deformity (ASD) surgery, and analyze the association with complications, intensive care unit (ICU) requirement, and length of hospital stay (LOS).

Methods: Multicenter comparative cohort study. Patients ≥ 18 years old and with ASD were included.

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  • * Patients showed significant improvements in incision color, hypertrophy, and overall appearance over two years, with no cases of incisional hernia or bulging.
  • * The study concluded that anterior lumbar surgeries are safe and result in acceptable cosmetic outcomes, contrasting with prior reports of higher morbidity linked to these procedures.
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Study Design: Diagnostic accuracy study.

Objective: To establish a simple method of phantomless bone mineral density (BMD) measurement by using preoperative lumbar Computed Tomography (CT) scans, and compare the accuracy of reference tissue combinations to diagnose low BMD against uncalibrated Hounsfield units (HUs).

Summary Of Background Data: HUs are used as a measure of BMD; however, associations between HU and T-scores vary widely.

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  • This study is a case-control research aimed at creating a classification system for different types of degenerative changes and failures at the proximal junction after spinal surgery.
  • The system outlines four degeneration types: Type 1 (multilevel symmetrical collapse), Type 2 (single adjacent level collapse), Type 3 (fracture), and Type 4 (spondylolisthesis), based on data from patients who had spinal fusion.
  • Findings reveal that degeneration affects nearly half of the patients, with Type 3 having the shortest time before needing revision surgery, while Type 1 shows the lowest revision rate, indicating varying risks associated with each type.
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  • The study retrospectively reviews patient data to assess whether changes in the position of the upper instrumented vertebral (UIV) screw during surgery predict the development of proximal junctional kyphosis or failure (PJK/PJF).
  • It involves a cohort of 143 cases analyzed over an average follow-up of 3.5 years, revealing that significant changes in the screw's angle are correlated with higher rates of PJK/PJF and the need for surgical revision.
  • The findings suggest that a change of the screw position greater than 5° notably increases the risk of both developing PJK/PJF and requiring revision surgery, highlighting the importance of careful surgical technique.
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Objective: This study aimed to compare the mid-term results of closed reduction (CR) versus medial open reduction (MOR) in the treatment of children with developmental dysplasia of the hip (DDH) under age 1.

Methods: Thirty-four patients with DDH (41 hips) were included in this retrospective study with a mean follow-up of 4.2 years (range: 2-6.

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Purpose: To evaluate the safety of growth-friendly instrumentation for early-onset scoliosis (EOS) in patients with spinal muscular atrophy (SMA) type 1 who received disease-modifying treatment (DMT) and analyze short-term efficacy.

Methods: Retrospective search was conducted between 2017 and 2023. Patients with genetically confirmed SMA type 1 who were surgically treated for spinal deformity and receiving DMTs (nusinersen, risdiplam, or onasemnogene abeparvovec) were included.

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Background: Low back pain in childhood was underappreciated for a long time, but recent studies report higher prevalences, up to 70%. Two of the common causes are spondylolyis/spondylolisthesis and Scheuermann's disease. These disorders are relevant in a way they both cause significant back pain, and may disrupt the sagittal spinal balance.

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Objective: The optimal glycemic control marker before total hip or knee arthroplasty remains inconclusive. Hemoglobin A1c (HbA1c) is widely used, while fructosamine may be valuable for predicting periprosthetic joint infection (PJI). Fructosamine levels can be affected by serum albumin levels; albumin-corrected fructosamine (AlbF) can be calculated to overcome this issue.

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Objectives: To compare the radiographic outcomes of our patients who encountered medial wall disruption, with those who did not while undergoing Dega osteotomy.

Methods: We retrospectively reviewed the records of 95 hips with developmental dysplasia of the hip who were treated with Dega pelvic osteotomy. Hips were divided into 2 groups according to medial wall disruption: group A included the hips with medial wall disruption, while group B included the hips without disruption.

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Case: A 5-month-old female patient presented with bilateral lower-limb deformities. Hips were fixed at 100° abduction, 15° flexion and 45° external rotation, flexion contracture in the knees, and bilateral teratologic equinovarus deformities. Radiographs revealed ilio-trochanteric osseous bars as the etiology of hip contractures.

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Background: Growing rods (GRs) is a commonly utilized technique for the management of early-onset scoliosis. The significance of the position of the apical vertebrae relative to the rods is not known. The purpose of this study is to analyze the potential effects of the position of the apical vertebrae in relation to the GRs on deformity control through plain radiographs and finite element analysis (FEA) modeling.

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Myiasis is the infestation of tissues with living larvae. Oral myiasis is an extremely rare form of the disease, with open mouth, unconsciousness, and poor oral hygiene being the predisposing factors. It is generally observed in the tropics or subtropics, as well as rural places with low socio-economic income.

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Background: Achilles tendon (AT) midsubstance injuries may heal suboptimally, especially in athletes. Transforming growth factor-beta 3 (TGF-β3) shows promise because of its recently discovered tendinogenic effects. Using poly(lactic-co-glycolic acid)-b-poly(ethylene glycol) (PLGA-b-PEG) nanoparticles (NPs) may enhance the results by a sustained-release effect.

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  • Polycystic ovary syndrome (PCOS) is a common endocrine disorder in women that is linked to eating problems, and this study explores how it affects taste function and eating behavior.
  • In comparing 44 women with PCOS to 36 healthy women, it was found that those with PCOS had significantly lower scores for sour and salty tastes, although sweet and bitter tastes were similar between the groups.
  • After a 3-month period of using oral contraceptives, the taste scores remained unchanged in the PCOS group, but they did experience a notable reduction in food cravings, particularly in the lack of control over eating.
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Background: Several different strategies were described on how to graduate a patient when skeletal maturity is reached after growing rod treatment. A final instrumentation and fusion is commonly performed, but the stiffness of the spine after numerous lenghthenings can be a major problem. When correction is needed in a severe and rigid curve, 3-column osteotomies (3CO) can be used as a method of bringing the spine back to a well-balanced position.

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The main purpose of our study was to investigate the efficacy of dual two-hole tension band plates in the treatment of lower extremity limb length discrepancy (LLD). We retrospectively reviewed patients who underwent epiphysiodesis utilizing dual two-hole tension band plates due to lower extremity LLD between January 2012 and June 2018. The efficacy of epiphysiodesis was defined as the inhibited percentage of the expected growth of the physis between two time intervals and was calculated between 0-6 months and 6-18 months as the primary outcome.

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Introduction: Histiocytoses are rare disorders and most orthopedic surgeons are unfamiliar with this diagnosis. We report a case of synovial non-Langerhans cell histiocytosis (LCH) located in the shoulder, which has not been reported in the literature previously.

Case Report: A 24-year-old female patient presented to our clinic with shoulder pain and decreased range of motion.

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The study aimed to evaluate the results after arthroscopic tenodesis and tenotomy of the biceps tendon (LHBT), coupled in tenotomy modality with a personalized postoperative rehabilitation protocol. The study included patients who underwent arthroscopic biceps tenotomy or tenodesis due to chronic biceps tendinopathy. Postoperatively, a standard rehabilitation program was prescribed to the tenodesis group and personalized was introduced in the tenotomy group, respectively.

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Introduction: Scapular body fractures represent less than 1% of all skeletal fractures. Operative criteria and risk factors for scapular fracture instability are well defined. Non-operative management of scapular body fractures show satisfactory results but with shortening and medialization of the scapular body.

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Background: The treatment of proximal humerus tumors with endoprostheses is associated with a high risk of implant-related surgical complications. Because of extensive soft-tissue resection and muscular detachment during surgery, instability is the most common serious complication. A reverse total shoulder arthroplasty with a highly constrained design is one option to mitigate instability, but few studies have reported the results of this prosthesis for proximal humerus tumor resections.

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Objectives: Due to the high demand for all-ceramic restorations, monolithic zirconia restorations are nowadays frequently used. With the demand for adult orthodontic treatments, orthodontists need to be mindful of the quality of their brackets bonding to this type of material, as it requires special conditioning. This study aimed to compare different surface treatments of zirconia when bonding metal or ceramic orthodontic brackets.

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Unlabelled: Gitelman syndrome is a rare renal tubule disease characterized by hypokalaemia, metabolic alkalosis, hypomagnesaemia, hypocalciuria and normal blood pressure. It shows autosomal recessive inheritance and is usually not diagnosed until late childhood or adulthood. We report the case of 34-year-old woman who at 21 weeks of pregnancy was admitted to the gynaecology department for abdominal pain, muscle cramps and weakness.

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