Abstract:
OBJECTIVES:Occipitocervical fusion (OCF) is an effective treatment for instability of occipitocervical junction (OCJ). The occipital condyle screw serves as a novel surgical technique for occipitocervical fixation. However, the intraoperative procedures for the occipital condyle screw technique have relied on surgeons' experience, so the pool of surgeons who are able to perform this surgery safely is limited. The present study aims to evaluate the feasibility and safety of the occipital condyle screw technique using human cadavers and to provide image anatomy for clinical application basis. METHODS:The scientific study comprised 10 fresh-frozen cadaveric specimens from the anatomy department of Qingdao University. Placement of the occipital condyle screws (3.5 mm diameter and 20.0 mm length) was performed in the 10 fresh-frozen cadaveric specimens with intact occipitocervical junctions, respectively. Occipitocervical CT was performed for all specimens and the DICOM data was obtained. Occipitocervical CT three-dimensional (3D) reconstruction was performed for the cadavers. Morphometric analysis was performed on the bilateral occipitocervical junction of 10 cadaveric specimens based on the 3D reconstruction CT images. Detailed morphometric measurements of the 20 occipital condyles screws were conducted including the average length of the screw trajectory, inside and upper tilting angles of screws, distance to the hypoglossal canal, and to the medial wall of occipital condyle. RESULTS:Placement of the occipital condyle screws into the 20 occipital condyles of the 10 cadaveric specimens was performed successfully and the trajectory of implantation was satisfactory according to 3D CT reconstruction images, respectively. There was no obvious injury to the spinal cord, nerve root, and vertebral artery. The length of the bilateral screw trajectory was, respectively, 20.96 ± 0.91 mm (left) and 20.59 ± 0.77 mm (right) (t = 1.306, P > 0.05). The upper tilting angle of bilateral screws was, respectively, 11.24° ± 0.74° (left) and 11.11° ± 0.64° (right) (t = 0.681, P > 0.05). The inside tilting angle of bilateral screws was, respectively, 31.00° ± 1.32° (left) and 30.85° ± 1.27° (right) (t = 0.307, P > 0.05). The screw's distance to the bilateral hypoglossal canal was, respectively, 4.84 ± 0.54 mm (left) and 4.70 ± 0.54 mm (right) (t = 0.685, P > 0.05). The screw's distance to the medial wall of the bilateral occipital condyle was, respectively, 5.13 ± 0.77 mm (left) and 5.04 ± 0.71 mm (right) (t = 0.384, P > 0.05). CONCLUSION:The occipital condyle screw technique can serve as a feasible and safe treatment for instability of the occipitocervical junction with meticulous preoperative planning of the screw entry point and direction based on individual differences. Morphometric trajectory analysis is also an effective way to evaluate the surgical procedure.
journal_name
Orthop Surgjournal_title
Orthopaedic surgeryauthors
Du YK,Li SY,Yang WJ,Wang XY,Bi YF,Dong J,Huang H,Gao F,Li GZ,Wei HW,Yang JK,Xi YMdoi
10.1111/os.12700subject
Has Abstractpub_date
2020-06-01 00:00:00pages
931-937issue
3eissn
1757-7853issn
1757-7861journal_volume
12pub_type
杂志文章abstract:OBJECTIVE:To explore the effect of kartogenin (KGN) on proliferation and chondrogenic differentiation of human umbilical cord mesenchymal stem cells (hUCMSC) in vitro, and the synergistic effects of KGN and transforming growth factor (TGF)-β3 on hUCMSC. METHODS:Human umbilical cord mesenchymal stem cells were isolated...
journal_title:Orthopaedic surgery
pub_type: 杂志文章
doi:10.1111/os.12691
更新日期:2020-06-01 00:00:00
abstract:OBJECTIVE:To compare the clinical efficacy of intramedullary nail fixation for intertrochanteric fractures assisted by orthopaedic robot navigation and the traditional intramedullary nail fixation in elderly patients, and to investigate the application advantages of intramedullary nail fixation for femoral intertrochan...
journal_title:Orthopaedic surgery
pub_type: 杂志文章
doi:10.1111/os.12447
更新日期:2019-04-01 00:00:00
abstract:OBJECTIVE:To evaluate the outcome of computed tomography (CT)-guided percutaneous puncture and local chemotherapy for tuberculosis (TB) of the lumbar or lumbosacral spine. METHODS:From January 2002 to August 2006, 49 patients with lumbar or lumbosacral spinal TB in whom conservative treatment had failed were treated b...
journal_title:Orthopaedic surgery
pub_type: 杂志文章
doi:10.1111/j.1757-7861.2009.00060.x
更新日期:2010-02-01 00:00:00
abstract:OBJECTIVE:To analyze the approach and feasibility of one-stage anterior release and reduction with posterior fusion for irreducible atlantoaxial dislocation. METHODS:Ten male and 6 female patients, with an average age of 36 years, including 13 patients with old trauma, 2 with rheumatoid disease, and 1 with os odontoid...
journal_title:Orthopaedic surgery
pub_type: 杂志文章
doi:10.1111/j.1757-7861.2009.00049.x
更新日期:2009-11-01 00:00:00
abstract:OBJECTIVE:To quantitatively describe the stress of the ligamentum flavum (LF) using the finite element method and to compare the stress at different parts of the healthy LF. METHODS:Based on the high resolution computed tomography imaging data of a healthy 22-year-old man, three-dimensional nonlinear L4-5 lumbar finit...
journal_title:Orthopaedic surgery
pub_type: 杂志文章
doi:10.1111/os.12675
更新日期:2020-06-01 00:00:00
abstract:OBJECTIVES:This research aimed to investigate the relative level of Runt-related transcription factor 2 (RUNX2) in giant cell tumor of bone (GCTB). Through the histopathological similarities between osteoporosis and GCTB, the biological functions of exogenous RUNXS were demonstrated in GCTB cell lines. This generated a...
journal_title:Orthopaedic surgery
pub_type: 杂志文章
doi:10.1111/os.12568
更新日期:2020-04-01 00:00:00
abstract:OBJECTIVE:To investigate a stem-adjusted preparation of the femur with a kinked reamer and to determine whether this approach results in higher primary stability of a kinked stem than straight reaming of the intramedullary canal. METHODS:Ten cementless stems with a kinked design were implanted in synthetic femurs afte...
journal_title:Orthopaedic surgery
pub_type: 杂志文章
doi:10.1111/os.12490
更新日期:2019-08-01 00:00:00
abstract:OBJECTIVE:To investigate the methods for, and clinical outcome of, the operative treatment of thoracolumbar fractures through an approach via the paravertebral muscle (PVM). METHODS:From June 2005 to August 2006, 62 patients, comprising 48 men and 14 women with an average age of 45.2 years (range, 21-58) with thoracol...
journal_title:Orthopaedic surgery
pub_type: 杂志文章,随机对照试验
doi:10.1111/j.1757-7861.2009.00032.x
更新日期:2009-08-01 00:00:00
abstract:OBJECTIVE:Acute hematogenous infection is a devastating complication that can occur after total knee arthroplasty (TKA). The best strategies for management of this infection remain controversial. Two-stage revision has been well described as the gold standard for the management of chronic late infections. However, ther...
journal_title:Orthopaedic surgery
pub_type: 杂志文章
doi:10.1111/os.12297
更新日期:2016-11-01 00:00:00
abstract:OBJECTIVE:To assess the difference between drainage and non-drainage after total hip arthroplasty (THA) in Chinese subjects by evaluating post-operative complications and joint function. METHODS:One hundred and sixty-eight patients undergoing THA were randomly allocated into drainage (83 patients) and non-drainage gro...
journal_title:Orthopaedic surgery
pub_type: 杂志文章,随机对照试验
doi:10.1111/os.12092
更新日期:2014-02-01 00:00:00
abstract:OBJECTIVE:The aim of this study is to identify the common microorganisms causing PJI as well as the drug-resistant spectrum for each microorganism, to help orthopaedic surgeons to choose appropriate antibiotics. METHOD:One hundred and sixty patients who suffered from failure of primary or revision total hip or knee ar...
journal_title:Orthopaedic surgery
pub_type: 杂志文章
doi:10.1111/os.12394
更新日期:2018-08-01 00:00:00
abstract:OBJECTIVE:To investigate the biological functions of long noncoding RNA-H19 (H19) in the pathogenesis of disuse osteoporosis (DOP). METHODS:Fifty-four male Sprague Dawley (SD) rats were randomly divided into three groups: baseline control (BC, 6), age-matched control (AC, 24), and hindlimb unloading (HLU, 24). The rat...
journal_title:Orthopaedic surgery
pub_type: 杂志文章
doi:10.1111/os.12321
更新日期:2017-08-01 00:00:00
abstract::Historically, a simple approach centered on palliation was applicable to the majority of patients with metastatic spinal disease. With advances in diagnosis and treatment, a more complicated algorithm has devolved requiring a multidisciplinary approach with institutional commitment and support. We performed a database...
journal_title:Orthopaedic surgery
pub_type: 杂志文章,评审
doi:10.1111/os.12334
更新日期:2017-05-01 00:00:00
abstract:OBJECTIVE:To evaluate the bi-planar robot navigation system for insertion of cannulated screws in femoral neck fractures. METHOD:Between January 2016 and December 2016, 60 patients with femoral neck fractures were separately treated using percutaneous cannulated screws assisted by the bi-planar robot navigation system...
journal_title:Orthopaedic surgery
pub_type: 杂志文章
doi:10.1111/os.12450
更新日期:2019-06-01 00:00:00
abstract:OBJECTIVE:To examine the results of an anular closure device for prevention of lumbar disc reherniation in daily routine practice. METHODS:Fifty patients with large anular defects were treated with limited discectomy and a bone-anchored anular closure device. The device physically occludes the defect in the anulus fib...
journal_title:Orthopaedic surgery
pub_type: 杂志文章
doi:10.1111/os.12495
更新日期:2019-06-01 00:00:00
abstract:OBJECTIVE:To study the clinical features and diagnosis of bursal-side partial-thickness rotator cuff tears. METHODS:From August 1999 to June 2006, 38 patients with bursal-side partial-thickness rotator cuff tear were evaluated. Twenty-eight men and ten women of average age 45.7 years (range, 18-69 years) with 11 left ...
journal_title:Orthopaedic surgery
pub_type: 杂志文章
doi:10.1111/j.1757-7861.2010.00097.x
更新日期:2010-11-01 00:00:00
abstract:OBJECTIVE:Relatively few studies have reported on the morphology of the supracondylar femur, which is a fundamental factor affecting prosthetic reconstruction. The objectives of the present study were to measure the morphological parameters of the supracondylar femur, to classify the supracondylar femur, and to provide...
journal_title:Orthopaedic surgery
pub_type: 杂志文章
doi:10.1111/os.12443
更新日期:2019-04-01 00:00:00
abstract::Pure tibiotalar dislocation without an associated fracture is an extremely rare injury. We present three cases of closed posteromedial tibiotalar dislocation without any associated fractures to the foot, ankle, or leg. All patients were treated conservatively with immediate closed reduction under general or local anae...
journal_title:Orthopaedic surgery
pub_type: 杂志文章
doi:10.1111/os.12049
更新日期:2013-08-01 00:00:00
abstract:OBJECTIVE:To introduce a microsurgical suture technique for repair of dural tear under posterior lumbar disk scope. METHODS:Micro endoscopic discectomy was performed on a 26-year-old male under local anesthesia. During the operation, an irregular tear of about 1.0 cm was inadvertently made in the dura.The cauda equina...
journal_title:Orthopaedic surgery
pub_type: 杂志文章
doi:10.1111/j.1757-7861.2011.00135.x
更新日期:2011-08-01 00:00:00
abstract:OBJECTIVE:To investigate the effect of residual varus and valgus deformity on the stress distribution of the knee joint after tibial fracture malunion. METHODS:Fourteen adult cadaver specimens were selected to establish the models of tibial fractures, which were fixed subsequently at neutral position (anatomical reduc...
journal_title:Orthopaedic surgery
pub_type: 杂志文章
doi:10.1111/os.12668
更新日期:2020-06-01 00:00:00
abstract:OBJECTIVE:Although contributions to sagittal alignment have been characterized for anterior, posterior and transforaminal lumbar interbody fusion, sagittal alignment after lateral transpsoas interbody fusion (LTIF) has not yet been characterized. This study examined the ability of LTIF to restore lumbar lordosis and id...
journal_title:Orthopaedic surgery
pub_type: 杂志文章
doi:10.1111/j.1757-7861.2012.00175.x
更新日期:2012-05-01 00:00:00
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journal_title:Orthopaedic surgery
pub_type: 杂志文章,meta分析
doi:10.1111/os.12532
更新日期:2019-10-01 00:00:00
abstract:OBJECTIVE:Fusobacterium nucleatum is an anaerobic gram-negative bacilli that is one of the oral and other mucosal surface microbiota. It involves a wide range of human diseases and was first found in periodontal diseases, but reports of bone-related infections caused by F. nucleatum are rare, especially periprosthetic ...
journal_title:Orthopaedic surgery
pub_type:
doi:10.1111/os.12844
更新日期:2020-12-01 00:00:00
abstract:OBJECTIVE:To retrospectively investigate the experience at one urban level one trauma center with gunshot femoral fractures with vascular injury and to examine the implication of surgical sequence with regards to short-term complications and ischaemia time. METHODS:We performed a retrospective study of 24 patients tre...
journal_title:Orthopaedic surgery
pub_type: 杂志文章
doi:10.1111/j.1757-7861.2012.00186.x
更新日期:2012-08-01 00:00:00
abstract:OBJECTIVE:To evaluate the safety and effectiveness of osteotomy adjacent to the articular surface of the metatarsal head combined with basal opening wedge osteotomy for severe hallux valgus. METHODS:The double osteotomy procedure was carried out in 56 patients (72 feet) with severe hallux valgus deformity, with an ave...
journal_title:Orthopaedic surgery
pub_type: 杂志文章
doi:10.1111/os.12505
更新日期:2019-08-01 00:00:00
abstract::Because current therapies have not always been successful and effective, the possibility of regenerating the nucleus pulposus (NP) through a tissue-engineered construct offers a novel therapeutic possibility for symptomatic degenerative disc diseases (DDDs). However, more research is necessary to identify the optimal ...
journal_title:Orthopaedic surgery
pub_type: 杂志文章
doi:10.1111/os.12020
更新日期:2013-02-01 00:00:00
abstract:OBJECTIVE:To evaluate the effects of surgery and rehabilitation on patients undergoing total knee arthroplasty (TKA). METHODS:Twelve patients and 12 healthy controls were enrolled and their clinical scores evaluated by a doctor. Gait data, including walking velocity, stride length, single support time, foot fall and s...
journal_title:Orthopaedic surgery
pub_type: 临床试验,杂志文章
doi:10.1111/os.12270
更新日期:2016-08-01 00:00:00
abstract:OBJECTIVES:To analyze the curative effect of TiRobot surgical robotic navigation and location system-assisted percutaneous sacroiliac screw fixation and percutaneous sacroiliac screw by traditional fluoroscopy, and to summarize the safety and benefits of TiRobot. METHODS:A total of 91 patients with pelvic posterior ri...
journal_title:Orthopaedic surgery
pub_type: 杂志文章
doi:10.1111/os.12461
更新日期:2019-06-01 00:00:00
abstract:OBJECTIVE:To investigate the bone hardness of different anatomical regions of the human radius and its impact on the pullout strength of screws. METHODS:Fresh radius bones were obtained from three donated cadavers. They were divided into three parts: proximal metaphysis, shaft, and distal metaphysis. The proximal meta...
journal_title:Orthopaedic surgery
pub_type: 杂志文章
doi:10.1111/os.12436
更新日期:2019-04-01 00:00:00
abstract:OBJECTIVE:To assess whether computed tomography (CT)-based 3-dimensional (3D) computerized pre-operative planning is accurate and reliable in patients with high-riding dislocation developmental dysplasia of the hip (DDH) undergoing total hip arthroplasty (THA). METHODS:Between September 2009 and February 2011, a prosp...
journal_title:Orthopaedic surgery
pub_type: 杂志文章
doi:10.1111/os.12099
更新日期:2014-05-01 00:00:00