Nai-Feng Tian's research while affiliated with First Affiliated Hospital of China Medical University and other places

Publications (51)

Article
Background: Osteoporosis is a prevalent bone metabolic disease in menopause, and long-term medication is accompanied by serious side effects. Estrogen deficiency-mediated hyperactivated osteoclasts is the initiating factor for bone loss, which is regulated by nuclear factor-κB (NF-κB) signaling. Safranal (Saf) is a monoterpene aldehyde produced fr...
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Background: Cartilaginous endplate (CEP) degeneration is considered as one of the major causes of intervertebral disc degeneration (IVDD) which causes low back pain. Recent studies have proved that epigenetic alteration is involved in a variety of diseases. This work explored the role of histone methyltransferase enhancer of zeste homologue 2 (EZH...
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Background Wound infections after posterior spinal surgery are a troublesome complication; patients are occasionally forced to remove the internal fixation device, which can lead to instability of the spine and injury to the spinal cord. The purpose of this study was to evaluate the efficacy of modified vacuum-assisted closure (VAC) for treating an...
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Objective: We sought to acquire parameters of the whole sagittal spine and investigate the acceptable chin-brow vertical angle (CBVA) for neutral position radiography of an asymptomatic Chinese population. Methods: The following parameters were measured in 257 asymptomatic volunteers: CBVA, occipital slope (OS), orbital tilt (OrT), occipital inc...
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Purpose: To measure the projection of the most anterior line of the spinal canal on lateral radiographs of the vertebra (C3-L5) and evaluate the efficacy of the safety line (SL) in preventing intraspinal cement leakage in percutaneous kyphoplasty (PKP) and percutaneous vertebroplasty (PVP). Materials and methods: Fifteen adult dry-bone spine spe...
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Background: Anterior odontoid screw fixation (AOSF) has been suggested as the optimal treatment for type II and some shallow type III odontoid fractures. However, only the classical surgical trajectory is available; no newer entry points or trajectories have been reported. Methods: We evaluated the anatomic feasibility of a new trajectory for AO...
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Rationale In previous studies, few cases of cervical myelopathy caused by invaginated anomalous laminae of the axis have been reported, and none of them was combined with occipitalization of the atlas. Patient concerns A 28-year-old male was brought to our hospital with motor and sensory impairments of the extremities after a car accident. Diagno...
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Background A “digit-like” bone is a rare developmental anomaly that is usually seen in the pelvic or thoracic regions. Such an anomaly in the cervical spine is extremely rare and few cases have been reported. We present a patient with an anomalous bone posterior to a cervical vertebra. The patient was admitted to our hospital with a gradually growi...
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Backgroud: Some studies have reported that the conventional intersegmental pedicle screws (four-screw fixation, '4S') device for thoracolumbar fractures was associated with inadequate reduction of fractured vertebrae, insufficient correction of kyphosis, and implant failure. Recently, a series of biomechanical studies confirmed that the addition o...
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Rationale: The complication of iatrogenic distraction of odontoid fracture after anterior screw fixation has not been reported in the literature. We treated the patient with endoscopically assisted bone grafting with good results. The new technique was not reported in the management of odontoid fracture or nonunion before. Patient concerns: A 22...
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Background: Patients with laminar fractures have a higher chance to suffer severe traumas and neurological deficits. In previous studies, laminar fractures were divided into different types based on the axial plane of computed tomographic scans. No report described the morphology of vertical laminar fractures in the coronal plane. Furthermore, the...
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Study design: Retrospective cohort study. Objective: To reveal the risk factors for dural tears in thoracic and lumbar (TL) burst fractures associated with vertical laminar fractures through multivariate analysis. Summary of background data: Dural tears associated with laminar fractures in patients with TL burst fractures represents a special...
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Spinal cord injury (SCI) is a severe neurological disease with few efficacious drugs. Autophagy is a cellular process to confront with stress after SCI and considered to be a therapeutic target of SCI. In this study, we investigated the therapeutic effect of metformin on functional recovery after SCI and its underlying mechanism of autophagy regula...
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Objectives: To report a new index (the spinal cord line) and a new classification to predict postoperative recovery effect for multilevel cervical spondylotic myelopathy patients. Methods: On T2-weighted image of the cervical spine, point A was the postero-inferior point of the spinal cord at C2. Point B was the postero-superior point of the spi...
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Backgroud: Anterior cervical discectomy and fusion (ACDF) with plate-screw construct has been gradually applied for multilevel cervical spondylotic myelopathy (CSM) in recent years. However, long cervical plate was associated with complications including breakage or loosening of plate and screws, trachea-esophageal injury, neurovascular injury, an...
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Thoracic cortical bone trajectory (CBT) screw fixation can maximize the thread contact with cortical bone, and it is 53.8% higher than that of the traditional pedicle screws. Moreover, it can also enable less tissue dissection and retraction for reduced muscle disruption. Eighty pediatric patients are divided into 4 age groups and their thoracic ve...
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Background context: Accurately evaluating the extent of trunk imbalance in the coronal plane is significant for patients before and after treatment. We preliminarily practiced a new method, axis-line-angle technique (ALAT), for evaluating coronal trunk imbalance with excellent intra-observer and interobserver reliability. Radiologists and surgeons...
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In this study we examined the relationship between autophagy and apoptosis in diabetic rats after spinal cord injury (SCI), also we determined the role of autophagy in diabetes-aggravated neurological injury in vivo and in vitro. Our results showed that diabetes decreased the survival of neurons, promoted astrocytes proliferation, increased inflamm...
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Object: The aim of the present study was to retrospectively evaluate progressive correction of coronal and sagittal alignment and pelvic parameters in patients treated with a Chêneau brace. Methods: Thirty-two patients with adolescent idiopathic scoliosis (AIS) were assessed before initiation of bracing treatment and at the final follow-up. Each...
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Object: The goal of this study was to evaluate the feasibility of the C-1 posterior arch crossing screw fixation technique in the pediatric age group. Methods: One hundred twenty-three pediatric patients were divided into 6 age groups. Computed tomography morphometric analysis of the C-1 posterior arch was performed. Measurements included height...
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Purpose To design and investigate a novel technique of percutaneous posterior transdiscal oblique screw fixation with lateral interbody fusion. Methods CT scans of 45 patients were collected and imported into Mimics software for three-dimensional (3D) reconstruction. Cylinders were drawn to simulate the trajectory of the oblique screw. Six measu...
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The objective of this study was to prospectively compare intraoperative fluoroscopy time and clinical and radiological results in pediatric femoral shaft fractures treated with titanium elastic nailing (TEN) using a small-incision, blind-hand reduction vs closed reduction. From February 2008 to December 2009, sixty-eight children were enrolled in t...
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Purpose of the study The aim of this retrospective study is to analyze the risk factors causing the failure of closed reduction of children supracondylar fracture. Materials and methods The children with supracondylar humerus fractures who were treated in our hospital from February 2008 to February 2013, were recorded as well as their age, sex, BM...
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Purpose of the study The aim of this retrospective study is to analyze the risk factors causing the failure of closed reduction of children supracondylar fracture. Patients and methods The children with supracondylar humerus fractures who were treated in our hospital from February 2008 to February 2013, were recorded as well as their age, sex, BMI...
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BACKGROUND: Anterior odontoid screw fixation (AOSF) has been one of the most popular treatments for odontoid fractures. However, the true efficacy of AOSF remains unclear. In this study, we aimed to provide the pooled rates of non-union, reoperation, infection, and approach related complications after AOSF for odontoid fractures. METHODS: We search...
Article
Objective: The main objective of this study was to investigate, in a population of normal postmenopausal women, the association between menopause and severity of lumbar disc degeneration from the first lumbar to the first sacral vertebra on magnetic resonance imaging. Methods: Between January 2010 and May 2013, 846 normal women and 4230 interver...
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Transforaminal lumbar interbody fusion (TLIF) has become one of the most widely used procedures for lumbar spinal disorders. However, it is still unclear whether TLIF with unilateral pedicle screw (PS) fixation is as effective as that with bilateral PS fixation. We performed a meta-analysis of the literatures and aimed to gain a better understandin...
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Many clinical studies have demonstrated the effectiveness of electrical stimulation as an adjunct to spinal arthrodesis. However, there is a paucity of comparative data among different electrical stimulation techniques. To compare the efficacy of three electrical stimulation methods for spinal fusion based on the literature review. Twenty-one artic...
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Object: This study aimed to investigate the incidence rate of heterotopic ossification (HO) after implantation of Coflex interspinous devices. Possible risk factors associated with HO were evaluated. Methods: The authors retrospectively analyzed patients who had undergone single-level (L4-5) implantation of a Coflex device for the treatment of l...
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The purpose of this study was to quantify the intra- and postoperative complications of an interspinous process device (Coflex) in managing degenerative lumbar diseases and to investigate corresponding therapeutic strategies. Between January 2008 and December 2012, we retrospectively analysed a total of 131 patients who underwent decompressive surg...
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The purpose of this study was to determine whether it would be feasible to use oblique lumbar interbody fixation for patients with degenerative lumbar disease who required a fusion but did not have a spondylolisthesis. A series of CT digital images from 60 patients with abdominal disease were reconstructed in three dimensions (3D) using Mimics v10....
Data
Selection of relevant publications, reasons for exclusion. (TIF)
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Posterior pedicle screw fixation has become a popular method for treating thoracolumbar burst fractures. However, it remains unclear whether additional fusion could improve clinical and radiological outcomes. This meta-analysis was performed to evaluate the effectiveness of fusion as a supplement to pedicle screw fixation for thoracolumbar burst fr...
Data
Characteristics of the studies included in the meta-analysis. (DOC)
Article
Purpose This is a meta-analysis of randomized and non-randomized studies comparing the clinical and radiological efficacy of minimally invasive (MI) and conventional open transforaminal lumbar interbody fusion (open-TLIF) for degenerative lumbar diseases. Methods A literature search of the MEDLINE database identified 11 studies that met our inclusi...
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Purpose To investigate the feasibility of mini-open anterior approach to the cervicothoracic junction (CTJ) in cadaveric specimens. Methods Four adult fresh-frozen cadaveric specimens were used for this study. On the cadaveric specimen, an osteotomy window was made in manubrium sterni to remove the bony obstacle. To bypass the vital vascular and ne...
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Lumbar interspinous devices are intended to unload the facet joints, restore foraminal height, lower intradisk pressure, and provide motion-preserving stabilization. They are an alternative treatment for patients with spinal degeneration and have increased in popularity in recent years. To the authors’ knowledge, heterotopic ossification has not be...
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PURPOSE: This study describes a percutaneous technique for C2 transpedicular screw fixation and evaluates its safety and efficacy in the treatment of patients with hangman's fracture. METHODS: Ten patients with hangman's fracture were treated by percutaneous C2 transpedicular screw fixation. There are six males and four females, who were, based on...
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Study design: A cadaver and radiological study. Objective: To investigate the projection of nerve roots on the posterior aspect of the spine from T11 to L5. Summary of background data: Understanding the projection of nerve roots on the posterior lamina will help to determine the decompressing areas of lamina and avoiding unnecessary bony resec...
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Studies revealed that navigation systems that provided intraoperative assistance might improve pedicle screw insertion accuracy, and also implied that different systems provided different pedicle screw insertion accuracy. A systematic review and meta-analysis was conducted to focus on the pedicle screw insertion accuracy with or without the assista...
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Morphology comparisons between the pedicle and pedicle rib unit in the immature spine were conducted through computed tomographic scans. To establish reference data concerning the dimensions of the pedicle rib unit for normal children. Until recently, studies on extrapedicular fixation were mostly based on adults. No published study has assessed th...
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Improved pedicle screw insertion accuracy has been reported with the assistance of computer tomography-based navigation. Studies also indicated that fluoroscopy-based navigation offers high accuracy and is comparable to CT-based assistance. However, different population characteristics and assessment methods resulted in inconsistent conclusions. We...

Citations

... Zhang et al. discovered that pirfenidone (PFD) effectively reduced RANKL-induced osteoclastogenesis by impairing NF-κB activation and suppressing NF-κB expression (Zhang et al. 2023b). Sheng et al. demonstrated that Safranal (Saf ), a monoterpene aldehyde, attenuated osteoclast differentiation by inhibiting IκBα degradation through promoting NF-κB p65 deacetylation and inactivating IKK, thus interfering with NF-κB signaling (Sheng et al. 2023). Wu et al. identified that Strontium ranelate (SR) hindered osteoclast formation by inducing NF-κB pathway-dependent autophagy, thereby mitigating bone destruction in rats ). ...
... DNA methylation stands out for being involved in cell regulation and differentiation, considered as two of the main factors that regulate gene activities 13 . Previous studies have shown the relationship of changes in DNA methylation patterns in animal models and in patients with chronic low back pain 10,14,15,16 . In addition to the identification of genetic predisposition, knowledge of epigenetic changes involved in chronic nonspecific low back pain may contribute to the understanding and development of new treatments 17 . ...
... Degenerated CEP cells also upregulate inflammatory cytokines and may contribute to tissue calcification via the expression of hypertrophic and osteogenic markers [27,[30][31][32][33]. These cells are reminiscent of articular chondrocytes [34], and many studies assess the degenerative status of CEP cells using common markers associated with cartilage health and disease [27,32,35]; additionally, several mechanistic studies exploring non-traditional markers in CEP cells are motivated by previous findings in articular cartilage [36,37]. Despite their similarities, the CEP and articular cartilage are structurally and compositionally distinct tissues [38], and analysis of a subset of cartilage and disc genes revealed phenotypic differences between the two cell types [34]. ...
... The VAC system has also demonstrated the ability to be used for infection prophylaxis, reducing the incidence of SSIs by up to 50% after application for closed incisions [19] . There also have been demonstrations of the use of LDDS such as antibiotic cement either in the form of beads [20 , 21] or a strut graft [22] and the use of Closed Suction Irrigation Systems (CSIS), with or without drug delivery, to assist in the successful management of SSIs [23] . ...
... It allowed the development of upper limb dexterity which had significant importance in the evolution of the neocortex, and it ensured horizontal gaze which profoundly impacted interaction with the environment. 1,2 The visual field plays a fundamental role in avoiding obstacles and regulating stability at rest and in motion. 3 Horizontal gaze is a parameter of craniocervical sagittal alignment that allows the individual to safely interact with the environment, wander, and perform daily life activities. ...
... Generally, the common complications of PVP include bone cement leakage, cement embolism, intraoperative puncture injury and new fractures (8)(9)(10)(11). Bone cement leakage and embolism may cause serious adverse complications, such as pulmonary cement embolism (12)(13)(14)(15), spinal compression (16,17), neurological deficit (18,19), atrial mass cement embolism (20), and iatrogenic venous compression (21), which have attracted a lot of attention. However, there are few reports about the hemorrhage caused by vascular injury, although the bleeding may lead to shock or other serious and terrible complications. ...
... Entry point of CBT is the intersection between the midpoint of superior articular process and the horizontal line 1 mm below the inferior border of transverse process. The screw is then pointed laterally 8-9 O and 25-26 O cranially (Fig. 4B) [4]. ...
... S ACS is a rare disease that may challenge every spine surgeon. 2,4,5,[13][14][15][16] This study introduced reduction of AAS, single-door laminoplasty of atlas and atlantoaxial fusion in the treatment of SACS. We found this new method could not only completely reduce AAS but also fully enlarge the inner sagittal diameter of atlas, and achieve C1-2 fusion satisfactorily. ...
... At the same time it permits to avoid fixation of more adjacent levels and ensures a stability similar to a longer fixation, allowing to decrease posttraumatic flattening of the vertebral body compared to bridge fixation. Since then, the option of short posterior fixation with screws at the level of the fracture has become the gold standard in compression fractures and has taken on particular importance, given its additional stability, in fractures with significant somatic comminution, in which corpectomy and vertebral body replacement are not performed (20,21,22,23,24,25,26). Nevertheless, the loss of support in the anterior column, which gets 80% of all axial loads, inevitably leads to the overload of the posterior instrumentation. ...
... Vertical laminar fracture (VLF) is frequently associated with BFs and results from vertical compression forces causing energy transfer from the vertebral body to the posterior elements, leading to interpedicular widening (IPW) and vertical split of the lamina [5][6][7]. Several studies have reported the associations of VLF with neurological deficits and radiographic parameters indicators of the severity of BFs [6][7][8]. As a result, VLF is commonly recognized as a severity marker for BFs [9]. ...