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Clin Orthop Relat Res 2019 Feb;477(2):324-330

Jenna Bernstein MD, Ryan Charette MD, Matthew Sloan MD, Gwo-Chin Lee MD, Department of Orthopaedic Surgery, University of Pennsylvania, Philadelphia, PA, USA.

Background: The importance of spinopelvic motion and its influence on THA stability are well recognized but poorly defined. With dynamic motion, compensatory changes in spine and pelvic positions are required to keep the necessary balance between the axial skeleton and lower extremity to maintain an erect posture. Although prior studies have shown spinal fusions to be an independent risk factor for hip dislocations after primary THA, the direct impact of fusion levels on spinopelvic motion remains unknown. Read More

Traffic Inj Prev 2019 Feb 4:1-9. Epub 2019 Feb 4.

d Nationwide Children's Center for Injury Research and Policy , Columbus , Ohio.

Objective: Motor vehicle occupants aged 8 to 12 years are in transition, in terms of both restraint use (booster seat or vehicle belt) and anatomical development. Rear-seated occupants in this age group are more likely to be inappropriately restrained than other age groups, increasing their vulnerability to spinal injury. The skeletal anatomy of an 8- to 12-year-old child is also in developmental transition, resulting in spinal injury patterns that are unique to this age group. Read More

Bone Joint J 2019 Feb;101-B(2):198-206

Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA.

Aims: Concurrent hip and spine pathologies can alter the biomechanics of spinopelvic mobility in primary total hip arthroplasty (THA). This study examines how differences in pelvic orientation of patients with spine fusions can increase the risk of dislocation risk after THA.

Patients And Methods: We identified 84 patients (97 THAs) between 1998 and 2015 who had undergone spinal fusion prior to primary THA. Read More

Am J Surg 2018 Jun 23. Epub 2018 Jun 23.

Division of Trauma, Emergency Surgery & Surgical Critical Care, Department of Surgery, Massachusetts General Hospital, 165 Cambridge Street Suite 810, Boston, MA, 02114, USA. Electronic address:

Background: We aimed to determine the incidence, risk factors, and outcomes of cervical spinal cord injury (CSCI) after blunt assault.

Methods: The ACS National Trauma Data Bank (NTDB) 2012 Research Data Set was used to identify victims of blunt assault using the ICD-9 E-codes 960.0, 968. Read More

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2019 Jan;33(1):35-40

Operating Room, West China Hospital, Sichuan University, Chengdu Sichuan, 610041,

Objective: To assess the application and the effectiveness of a strategy of combining posterior occipitocervical angle (POCA) with occipital-C (O-C ) angle for adjustment of occipitocervical fixation angle in posterior instrumented occipitocervical fusion.

Methods: The clinical data of 22 patients undergoing posterior instrumented occipitocervical fusions between March 2013 and January 2016 were retrospectively analysed, and all patients were performed by using a strategy combining with POCA and O-C angle for adjustment of occipitocervical fixation angle. All patients suffered from occipitocervical instability, including 7 males and 15 females with an average age of 44. Read More

Surg Neurol Int 2018 13;9:254. Epub 2018 Dec 13.

Department of Neurosurgery, University of Kansas Medical Center, 3901 Rainbow Boulevard, Mail Stop 3021, Kansas City, KS, U.S.A.

Background: Spinal cord decompression after cervical spinal cord injury (SCI) is the standard of care. However, there is a lack of consensus regarding the optimal management of these injuries, including the role of traction and timing of surgery. Here, we report the safety/efficacy of ventral surgery without preoperative traction for intraoperative fracture reduction following acute cervical SCI. Read More

World Neurosurg 2018 Dec 21. Epub 2018 Dec 21.

Surgery of Spine and Spinal Cord, Henan Provincial People Hospital, Jinshui District, Zhengzhou, China. Electronic address:

Objective: To explore the appropriate range of C0-C2 correction angles by analyzing cervical sagittal alignment parameters and evaluating clinical outcomes.

Methods: The preoperative and postoperative radiographs, visual analogue scale, Japanese Orthopedic Association score, and neck disability index of 65 atlantoaxial dislocation patients were retrospectively collected. The C0-C2 angle, C2-C7 angle, and cervical sagittal vertical axis (cSVA) were measured from the radiographs, and an assessment of cervical degenerative disc disease was made. Read More

J Forensic Leg Med 2019 Feb 29;61:92-96. Epub 2018 Nov 29.

Department of Legal Medicine, Graduate School of Medicine, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba city, Chiba Prefecture, 260-8670, Japan; Department of Forensic Medicine, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.

A 5-year-old boy with a chromosome-9 abnormality and multiple external and visceral malformations was found in cardiopulmonary arrest during a regular visit to the hospital; he did not respond to cardiopulmonary resuscitation and died. An odontoid process fracture and calcification and fibrosis of the muscles around the superior cervical vertebra were observed during the autopsy. Postmortem computed tomography revealed an anterior dislocation of the atlas; odontoid synchondrosis fracture; and delayed, incomplete bony fusion of the odontoid process relative to his age. Read More

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2018 Nov;32(11):1377-1381

Department of Orthopaedics, West China Hospital, Sichuan University, Chengdu Sichuan, 610041, P.R.China.

Objective: To discuss the effectiveness of atlantoaxial joint release through anterior retrophayngeal approach and staged posterior reduction fixation and fusion for irreducible atlantoaxial dislocation (IAAD).

Methods: Fifteen patients with IAAD (9 males, 6 females), aged 14-53 years (mean, 31.4 years) were included in the study. Read More

J Orthop Surg Res 2018 Oct 29;13(1):273. Epub 2018 Oct 29.

Department of Orthopaedic Surgery, Nihon University School of Medicine, 30-1 Oyaguchi-kamicho, Itabashi-ku, Tokyo, 173-8610, Japan.

Background: The Magerl and Goel-Harms techniques have been reported to produce excellent treatment outcomes in cases of atlantoaxial subluxation, but they also carry a risk of vertebral artery injuries. In order to completely prevent such injuries, we developed a surgical procedure, involving bone grafting between the C1 posterior arch and C2 lamina with clamp- or hook-and-rod-based fixation combined with the insertion of an interference screw into the posterior atlantoaxial joint.

Methods: This was a retrospective single-center study. Read More

Zhongguo Gu Shang 2018 Oct;31(10):907-911

Department of Anesthesiology, Wangjing Hospital of China Academy of Chinese Medical Sciences, Beijing 100102, China.

Objective: To explore clinical effects of ultrasound guided popliteal sciatic nerve combined saphenous nerve block in patients with anterior foot orthopedics.

Methods: From January 2017 to October 2017, 60 hallux valgus patients with metatarsophalangeal joint dislocation were randomly divided into experimental and control group according to random number table. Thirty patients in experimental group were treated by ultrasound guided popliteal sciatic nerve combined saphenous nerve block, including 13 males and 17 females, aged 31 to 76 years old with an average of (59. Read More

World Neurosurg 2019 Jan 10;121:e908-e916. Epub 2018 Oct 10.

Department of Neurosurgery, K.E.M. Hospital and Seth G.S. Medical College, Parel, Mumbai, India.

Objective: The implications of diagnosis and treatment of central or axial atlantoaxial dislocation (CAAD) as a cause of symptoms of cervical myelopathy are evaluated.

Methods: This is a report of a series of 5 patients who presented with the primary symptoms of spasticity and motor weakness and paresthesias in all the limbs. There was no evidence of any significant compression of the dural tube or neural structures at the craniovertebral junction. Read More

Medicine (Baltimore) 2018 Oct;97(41):e12538

Department of Orthopedic Surgery, The Third Hospital of Hebei Medical University, Orthopedic Research Institution of Hebei Province, Key Laboratory of Biomechanics of Hebei Province.

Rationale: Traumatic hip dislocation is a common joint dislocation. Delayed reduction has been shown to increase the risk of avascular necrosis of the femoral head. Most of the traditional methods must be performed under general anesthesia or spinal anesthesia to relax hip muscles. Read More

Clin Orthop Relat Res 2019 Feb;477(2):310-321

G. Grammatopoulos, University College London Hospital, London, UK W. Gofton, Z. Jibri, M. Coyle, J. Dobransky, C. Kreviazuk, P. R. Kim, P. E. Beaulé, The Ottawa Hospital, Ottawa, Ontario, Canada.

Background: Many patients undergo both THA and spinal arthrodesis, and those patients may not fare as well as those who undergo one procedure but not the other. The mechanisms of how spinal arthrodesis affects patient function after THA remain unclear.

Questions/purposes: The aims of our study were to (1) determine how patient-reported outcome measures (PROMs), including the Oxford hip score as well as dislocations and complications compare after THA between patients with and without spinal arthrodesis; (2) characterize sagittal pelvic changes in these patients that occur when moving between different functional positions and test for differences between patients with and without spinal arthrodesis; and (3) assess whether differences in sagittal pelvic dynamics are associated with PROMs, complications, and dislocations after THA. Read More

Bone Joint J 2018 Oct;100-B(10):1297-1302

Department of Orthopaedic Surgery, New York University Langone Orthopedic Hospital, New York, New York, USA.

Aims: The routine use of dual-mobility (DM) acetabular components in total hip arthroplasty (THA) may not be cost-effective, but an increasing number of patients undergoing THA have a coexisting spinal disorder, which increases the risk of postoperative instability, and these patients may benefit from DM articulations. This study seeks to examine the cost-effectiveness of DM components as an alternative to standard articulations in these patients.

Patients And Methods: A decision analysis model was used to evaluate the cost-effectiveness of using DM components in patients who would be at high risk for dislocation within one year of THA. Read More

Spinal Cord Ser Cases 2018 21;4:86. Epub 2018 Sep 21.

National Spinal Injuries Centre, Stoke Mandeville Hospital, Aylesbury, UK.

Study Design: Retrospective case series study.

Objective: To determine the success rate and neurological outcomes of rapid incremental closed traction reduction (RICTR) of cervical dislocations with spinal cord compression in the National Spinal Injuries Centre (NSIC), between June 2006 and December 2011.

Setting: Tertiary spinal injuries centre, Stoke Mandeville Hospital, UK. Read More

J Arthroplasty 2018 Dec 29;33(12):3768-3772. Epub 2018 Aug 29.

Department of Orthopaedic Surgery and Rehabilitation Medicine, University of Chicago, Chicago, IL.

Background: Although a history of lumbar spine fusion (LSF) is associated with increased dislocation risk following total hip arthroplasty (THA), the effect of LSF following THA is not well described. This study sought to describe the dislocation-free survival experience of patients with THA undergoing LSF, compare this to similar patients not undergoing LSF, and assess factors associated with dislocation risk following LSF.

Methods: Center for Medicare Service billing data from 2005 to 2014 was analyzed utilizing the PearlDiver platform. Read More

Clin Spine Surg 2019 Feb;32(1):E31-E36

Department of Orthopaedic Surgery, Rush University Medical Center, Chicago, IL.

Study Design: Retrospective Cohort.

Summary Of Background Data: Studies have shown that lumbar fusion procedures are associated with an increased risk of total hip arthroplasty (THA) dislocation. Some have speculated that the increased risk of dislocation is caused by mispositioning of the acetabular component because of spinal sagittal imbalance. Read More

Clin Interv Aging 2018 10;13:1639-1645. Epub 2018 Sep 10.

Department of Orthopaedic Surgery, Second Affiliated Hospital and Yuying Children's Hospital of Wenzhou Medical University, Wenzhou, People's Republic of China,

Purpose: Several authors have reported the degree of total blood loss (TBL) following hemiarthroplasty for displaced femoral neck fracture; however, the research specifically investigating on hidden blood loss (HBL) after hip hemiarthroplasty is still lacking. The purpose of this study is to evaluate the HBL in patients who underwent hip hemiarthroplasty for displaced femoral neck fractures and to analyze its risk factors.

Patients And Methods: From January 2015 to December 2016, 212 patients (57 males and 155 females) with displaced femoral neck fracture undergoing hip hemiarthroplasty were included in this study. Read More

Medicine (Baltimore) 2018 Sep;97(38):e12483

Department of Orthopedic Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul.

Rationale: Traumatic bilateral facet dislocation in the lumbar (L) spine has rarely been reported. All reported cases were presented with acute facet dislocation. However, we present the first case of delayed bilateral facet dislocation at L4-5. Read More

World Neurosurg 2019 Jan 11;121:e70-e76. Epub 2018 Sep 11.

Department of Neurosurgery, General Hospital of People's Liberation Army, Beijing, China. Electronic address:

Objective: Upper cervical fixation with C2 pedicle screw insertion may predispose patients to vertebral artery injury, in particular, patients with craniovertebral junction anomalies. The aim of this study was to describe an alternative technique with trans-C2 inferior articular process screw (C2IAPS) insertion for rigid C2 fixation, which can be used to anchor the C2 vertebra for upper cervical fixation.

Methods: Records of 19 patients who underwent posterior atlantoaxial fixation using C2IAPS combined with C1 lateral mass screw were retrospectively reviewed. Read More

World Neurosurg 2018 Dec 8;120:476-484. Epub 2018 Sep 8.

Neurosurgical Clinics, Ankara Numune Hospital, University of Health Sciences, Ankara, Turkey.

Objective: This study presents information regarding the treatment of fractures and dislocations of the vertebrae, including the use of the oral route for upper cervical fractures, presented in certain chapters of the book titled Kitāb al-'Umda fī Ṣinā'a al-Jirāḥa (Ibn al-Quff, thirteenth century ad).

Methods: A printed copy of the second volume of the book was studied. Chapters 22 ("On treatment of vertebral fractures") and 33 ("On treatment of vertebral dislocation") of the seventeenth treatise of this book were translated from Arabic into English. Read More

World Neurosurg 2018 Nov 31;119:103-107. Epub 2018 Jul 31.

Department of Neurological Surgery, University of Florida College of Medicine, Jacksonville, Florida, USA. Electronic address:

Background: Facet dislocations, or jumped facets, are part of a spectrum of flexion-distraction spine injuries. Bilateral and unilateral facet dislocations are commonly seen in the cervical spine. Traumatic jumped facets in the lumbar spine are rare injuries, and most involve the lumbosacral junction. Read More

Clinics (Sao Paulo) 2018 07 19;73:e259. Epub 2018 Jul 19.

Department of Spinal Surgery, Guizhou Orthopedic Hospital, Guiyang, 550002, China.

Objectives: To investigate the primary clinical value of atlantoaxial pedicle screw placement assisted by a modified 3D-printed navigation template.

Methods: We retrospectively analyzed the cases of 17 patients treated from June 2015 to September 2016 with atlantoaxial pedicle screw placement assisted by a modified 3D-printed navigation template. All procedures were performed prior to surgery, including thin-slice CT scanning, medical image sampling and computerized 3D modeling of the atlantoaxial joint, optimal pedicle screw trajectory determination, and anatomical trait acquisition for the atlantoaxial pedicle, spinous process of the axis, vertebral lamina and posterior lateral mass, and design of a reverse template. Read More

World Neurosurg 2018 Oct 19;118:e925-e932. Epub 2018 Jul 19.

Department of Neurosurgery, Sahaydri Superspeciality Hospital, Nashik, Maharashtra, India.

Objective: Deliberate C2 nerve root sectioning and its preservation have been described during posterior fusion for atlantoaxial dislocation (AAD). However, the associated outcomes have been less studied, especially in congenital AAD. Our objective was to study the clinical outcomes after C2 nerve root sectioning and the feasibility of C2 preservation in these patients. Read More

Spine (Phila Pa 1976) 2019 Feb;44(4):E202-E210

Schön Klinik München Harlaching, Spine Center, Munich, Germany.

Study Design: A nonrandomized, prospective, and single-center clinical trial of the ProDisc Vivo prosthesis.

Objective: The aim of this study was to investigate the clinical and radiological results of a refined total cervical disc replacement (cTDR), the ProDisc Vivo, with two years of follow-up (FU). The incidence of implant-related complications was recorded as a secondary outcome variable. Read More

J Neurol Surg A Cent Eur Neurosurg 2018 Nov 2;79(6):533-535. Epub 2018 Jul 2.

Department of Neurosurgery, Henan Provincial People's Hospital, Zhengzhou, China.

Vertebral arteriovenous fistula (AVF), a complication of a vertebral artery injury (VAI), is a rare but serious complication of upper cervical spine fixation surgery. We report a case of a 59-year-old female patient who had a vertebral AVF following transpedicular occipitocervical fixation surgery. Endovascular embolization of the AVF was successfully performed using ethylene vinyl alcohol. Read More

World Neurosurg 2018 Sep 21;117:e612-e630. Epub 2018 Jun 21.

Department of Neurosurgery, King George's Medical University, Lucknow, India.

Background: Craniovertebral junction diseases, although considered rare, are common in northern parts of India. This study was conducted to evaluate the clinico-radiologic and surgical outcome of patients with a minimum follow-up of 1 year. Our study also compared bony fusion among various techniques of posterior fusion. Read More

J Neurol Surg A Cent Eur Neurosurg 2018 Sep 11;79(5):416-423. Epub 2018 Jun 11.

Department of Neurological Surgery, University of Miami School of Medicine, Miami, Florida, United States.

Background And Study Objective:  Complex traumatic lumbar spine fractures are difficult to manage and typically occur in younger patients. Surgical immobilization for unstable fractures is an accepted treatment but can lead to future adjacent-level disease. Furthermore, large variations in fracture morphology create significant difficulties when attempting fixation. Read More

Rev Fac Cien Med Univ Nac Cordoba 2017 09 14;74(3):288-292. Epub 2017 Sep 14.

.

Cervical spine injury is rare in children. It is seen primarily in those who sustain significant, severe blunt trauma, occurring in 1 to 2 percent of such cases. The interpretation of cervical spine radiographs and the clinical examination in children may be difficult. Read More

World Neurosurg 2018 Aug 2;116:e1144-e1152. Epub 2018 Jun 2.

Department of Neurosurgery, Cathay General Hospital, Taipei City, Taiwan; Department of Medicine, School of Medicine, Fu Jen Catholic University, New Taipei City, Taiwan; Department of Mechanical Engineering, National Central University, Taoyuan County, Taiwan. Electronic address:

Objective: To assess accuracy and safety of self-developed customized guiding templates for cervical pedicle screw (CPS) insertion surgery.

Methods: From July 2016 to December 2017, 57 screws were implanted in 9 patients with the assistance of customized guiding templates. Customized guiding templates were manufactured from acrylonitrile-butadiene-styrene plastic material using a three-dimensional printer after establishing pedicle screw trajectories for each vertebra with the assistance of a virtual surgical planning software program, developed by our team, for the insertion of CPSs. Read More

J Orthop Surg Res 2018 May 29;13(1):126. Epub 2018 May 29.

Department of Spine Surgery, The Third Hospital of Hebei Medical University, 139 Ziqiang Road, Shijiazhuang, 050051, China.

Background: Distraction-flexion of the lower cervical spine is a severe traumatic lesion, frequently resulting in paralysis. The optimal surgical treatment is controversial. It has been a challenge for orthopedic surgeons to manage distraction-flexion injury in the lower cervical spine while avoiding the risk of iatrogenic damage. Read More

J Spinal Cord Med 2018 May 21:1-7. Epub 2018 May 21.

d Department of Orthopaedic Surgery and Neurosurgery at Thomas Jefferson University , Philadelphia , Pennsylvania , USA.

Context: It is well established that traumatic spinal dislocations (AO Type C injuries) should be surgically treated. However, no recent comparative study of surgical versus non-surgical management of type C injuries was found attesting the superiority of surgical treatment.

Objective: Due to the lack of information about the natural history of non-surgical management of type C injuries, we evaluated the outcome of historical conservative treatment of type C injuries. Read More

Neurochirurgie 2018 Sep 3;64(4):327-330. Epub 2018 May 3.

CHU de Strasbourg, hôpital de Hautepierre, service de neurochirurgie, 67200 Strasbourg, France.

Introduction: Grisel's syndrome consists in rotational subluxation of C1-C2 following ENT infection or surgery. There is no consensus on management. We present 2 cases requiring surgical treatment in our center. Read More

J Clin Neurosci 2018 Jul 3;53:247-249. Epub 2018 May 3.

Orthopaedic Department, Peking University Third Hospital, Beijing, China. Electronic address:

Klippel-Feil syndrome (KFS) is defined as congenital fusion of two or more cervical vertebrae resulting from a segmentation failure in the developing spine. According to Samartzis et al., the most commonly fused segments are found at C2/3 (74. Read More

Medicine (Baltimore) 2018 May;97(18):e0553

Department of Orthopaedic Surgery, Shengjing Hospital of China Medical University, Shenyang City, Liaoning Province, P.R. China.

Rationale: This study aimed to describe the case of a 3-year-old girl with old bilateral facet dislocation on cervical vertebrae 6 and 7, who had spinal cord transection, received surgical treatment, and achieved a relative satisfactory therapeutic effect.

Patient Concerns: A 3-year-old girl was urgently transferred to the hospital after a car accident. DIAGNOSES:: she was diagnosed with splenic rupture, intracranial hemorrhage, cervical dislocation, spinal transection, and Monteggia fracture of the left upper limb. Read More

J Womens Health (Larchmt) 2018 07 30;27(7):946-951. Epub 2018 Apr 30.

1 Department of Orthopedic Surgery, Rabin Medical Center , Beilinson Campus, Petah-Tikva, Israel .

Background: Spinal injury is common in trauma suffered by both men and women. A lesser degree of involvement of females with spinal trauma, or at least, the different nature of such injuries, has been suggested. It has been proposed that behavioral and structural characteristics may explain the differential type and severity of spinal injuries in women. Read More

World Neurosurg 2018 Jul 22;115:154-156. Epub 2018 Apr 22.

PGIMER, Neurosurgery, Chandigarh, India.

Background: The vertebral artery (VA) may have an anomalous course in patients with congenital atlantoaxial dislocation. In such cases, the artery crosses the C1-C2 joint posteriorly. These cases need thorough evaluation of the VA course to avoid its injury during posterior reduction and fusion of C1-C2. Read More

World Neurosurg 2018 Jul 17;115:105-109. Epub 2018 Apr 17.

LiuHuaQiao Hospital, Department of Orthopedics, Guangzhou, China.

Background: Posterior occipitocervical fusion surgery is a commonly used surgical method to treat various craniovertebral junction pathologies. Though it is an effective method, there also have been some reports about complications of occipitocervical fusion. However, there have been no reports about posterior fossa epidural hematomas after occipitocervical fusion. Read More

World Neurosurg 2018 Jul 17;115:e404-e421. Epub 2018 Apr 17.

Department of Spine Surgery, China-Japan Friendship Hospital, Beijing, China.

Background: Although C1-C2 pedicle screw techniques have been extensively reported in pediatric series, reports on their use have examined only small series with short follow-up periods. The aim of this study was to report pediatric patients with atlantoaxial rotatory dislocation treated with these techniques with a minimum 5-year follow-up.

Methods: Retrospective review was performed of 27 pediatric patients with atlantoaxial rotatory dislocation who underwent C1-C2 pedicle screw fixation between 2004 and 2012. Read More

Eur Spine J 2018 06 16;27(6):1234-1248. Epub 2018 Apr 16.

Division of Spine, Department of Neurosurgery, China International Neurological Institute, Xuanwu Hospital, Capital Medical University, 45# Changchun Street, Xicheng District, Beijing, 100053, People's Republic of China.

Purpose: To compare the clinical and radiographic outcomes of irreducible atlantoaxial dislocation (IAAD) treated with posterior fusion after anterior release and direct posterior reduction of the dislocation.

Methods: Online databases were searched for articles describing IAAD published from 1999 to 2015. Five studies (105 patients) described treatment with posterior fusion after periodontoid tissue release, and five studies (113 patients) described treatment with direct posterior reduction of the dislocation. Read More

Medicine (Baltimore) 2018 Apr;97(15):e0441

Department of Spine Surgery.

Rationale: Rod breakage after occipitocervical fusion (OCF) has never been described in a patient who has undergone surgery for basilar invagination (BI) and atlantoaxial dislocation (AAD). Here, we present an unusual but significant case of revision surgery to correct this complication.

Patient Concerns: A 32-year-old female presented with neck pain, unstable leg motion in walking, and also BI with AAD. Read More

World Neurosurg 2018 Jul 6;115:e137-e145. Epub 2018 Apr 6.

Department of Spine Surgery, Honghui Hospital, Xi'an Jiaotong University College of Medicine, Xi'an, Shanxi, China. Electronic address:

Background: Lower cervical fracture-dislocations frequently occur with spinal cord injuries. There is no clear consensus on best treatment option. Anterior approach surgery with direct decompression and reduction has become widely accepted. Read More

World Neurosurg 2018 Jun 4;114:330-334. Epub 2018 Apr 4.

Department of Spine Surgery, First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China. Electronic address:

Objective: We sought to document our experience in managing a rare complex of traumatic posterolateral atlantoaxial dislocation combined with locked lateral mass and type II odontoid fracture.

Method: A 30-year-old male patient was referred to the author's department. He complained of a decrease in neck range of motion following a traffic accident. Read More

PLoS One 2018 6;13(4):e0195215. Epub 2018 Apr 6.

BG Trauma Center Ludwigshafen, Department of Trauma Surgery and Orthopaedics, Ludwigshafen, Germany.

Background: Unstable conditions of the craniocervical junction such as atlanto-occipital dislocation (AOD) or atlanto-axial instability (AAI) are severe injuries with a high risk of tetraplegia or death. Immobilization by a cervical collar to protect the patient from secondary damage is a standard procedure in trauma patients. If the application of a cervical collar to a patient with an unstable craniocervical condition may cause segmental motion and secondary injury to the spinal cord is unknown. Read More

Medicine (Baltimore) 2018 Mar;97(13):e0189

Department of Orthopaedic Surgery, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.

Rationale: To the best of our knowledge, this is an extremely rare case of traumatic C1-2 rotatory subluxation associated with multiple C2 fractures.

Patient Concerns: We report the case of a 63-year-old man with type 2 traumatic C1-2 rotatory subluxation (Fielding and Hawkins classification) associated with type III dens (Anderson and D'Alonzo classification) and bilateral articular facet fractures of C2. This injury occurred as a result of falling down in a drunken state. Read More

Traffic Inj Prev 2018 02;19(sup1):S44-S49

c Department of Neurosurgery , Medical College of Wisconsin , Milwaukee , Wisconsin.

Objective: The research objective was to conduct an initial analysis of non-human primate (NHP) data from frontal and rear impact events archived in the Biodynamics Data Resource (BDR) records of the Naval Biodynamics Laboratory (NBDL). These rare data, collected between 1973 and 1989, will inform the safety community of upper-end tolerance limits of NHP and may be related to severe crash scenarios.

Methods: Data from frontal and rear acceleration tests to 93 macaque NHP were examined. Read More

J Med Case Rep 2018 Mar 21;12(1):74. Epub 2018 Mar 21.

Department of Orthopedics, General Hospital of Jinan Military Command, Jinan, 250031, China.

Background: Skeletal and soft tissue damage are often associated with unilateral facet dislocations, which undoubtedly lead to instability of the spine and further increase difficulties in cervical reduction. This type of irreducible facet dislocation is usually accompanied with potential catastrophic consequences including neurological deficit and severe disability. Therefore, a consistent and evidence-based treatment plan is imperative. Read More