1,353 results match your criteria C1 Fractures

C1 and C2 Fractures Above a Previous Fusion Treated with Internal Fixation without Fusion: A Case Report.

JBJS Case Connect 2021 04 14;11(2). Epub 2021 Apr 14.

Department of Orthopaedic Surgery, Mayo Clinic, Rochester, Minnesota.

Case: A 71-year-old woman sustained C1 lateral mass and type 2 odontoid fractures 3 years after C2-T2 anterior-posterior fusion. She was treated with C1-C4 instrumentation without fusion for 9 months followed by instrumentation removal to restore atlantoaxial motion. After instrumentation removal, she maintained clinically relevant cervical lateral bending, rotation, and flexion and extension. Read More

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Odontoid Fracture as Proximal Junctional Failure in Patients With Multilevel Spine Fusions.

Global Spine J 2021 May 11:21925682211008833. Epub 2021 May 11.

Department of Neurosurgery, University of Minnesota, Minneapolis, MN, USA.

Study Design: Retrospective study.

Objective: Proximal junctional failure (PJF) commonly occurs as a recognized potential outcome of fusion surgery. Here we describe a unique series of patients with multilevel spine fusion including the cervical spine, who developed PJF as an odontoid fracture. Read More

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Intraoperative 3D imaging in intraarticular tibial plateau fractures - Does it help to improve the patients' outcomes?

J Orthop Surg Res 2021 May 5;16(1):295. Epub 2021 May 5.

Affiliation: Department of Orthopedics, Trauma and Plastic Surgery, University Hospital Leipzig, Liebigstraße 20, 04103, Leipzig, Germany.

Background: In tibial plateau fractures (TPF) the restoration of an anatomical joint surface as well as an exact subchondral screw position for postoperative stability is crucial for the outcome. The aim of this study was to determine whether the additional use of an intraoperative 3D imaging intensifier (3D) might help to improve the outcome of complex TPF.

Methods: We performed a retrospective case-control study of a level 1 trauma center. Read More

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Different Post Placement Strategies for the Restoration of Endodontically Treated Maxillary Premolars with Two Roots: Single Post vs Double Post.

J Contemp Dent Pract 2020 Dec 1;21(12):1374-1378. Epub 2020 Dec 1.

Department of Medical Biotechnologies, Unit of Endodontics and Restorative Dentistry, University of Siena, Siena, Italy.

Aim And Objective: The present study compared the fracture strength and failure pattern of endodontically treated, bi-rooted, maxillary premolars with different number of coronal walls and postendodontic restoration (one vs double post).

Materials And Methods: 105 premolars were divided into 3 groups according to the number of residual walls: control group (intact teeth; = 15), group 1 (3 residual walls; = 45), group 2 (2 residual walls; = 45). Each test group was then divided into 3 subgroups ( = 15 each) according to postendodontic restoration: no post (A), 1 post (B) or 2 posts (C). Read More

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December 2020

Traumatic Atlantoaxial Dislocation with Type II Odontoid Fractures: A Case Report.

Ethiop J Health Sci 2020 Nov;30(6):1047-1050

Department of Surgery, Faculty of Medicine, Hasanuddin University, Makassar, Indonesia.

Background: Odontoid fracture frequently ensues after a cervical trauma, and most commonly at the junction between the dens and the body (type II odontoid fracture).

Case Presentation: This report is focused on a 24-years-old male patient with right-sided hemiparesis, resulting from traumatic atlantoaxial dislocation with type II odontoid fracture. Cervical CT-scanning showed a spondylolisthesis of the C1-C2 complex with type II odontoid fracture, and the injury was treated using posterior reduction and internal stabilization. Read More

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November 2020

[Clinical application of an improved classification system of Kümmell's disease].

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2021 Apr;35(4):464-470

Department of Orthopedics, the Second Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan Shandong, 250001, P.R.China.

Objective: To report an improved classification system of Kümmell's disease and its clinical application.

Methods: Based on CT and MRI, an improved classification system of Kümmell's disease was proposed in terms of the integrity of sagittal endplate, the integrity of posterior wall of vertebral body, and the degree of vertebral compression. Between January 2011 and March 2018, the improved classification system was used to evaluate and guide the treatment of 78 patients with Kümmell's disease. Read More

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[Indirect fixation of the third tarsometatarsal joint for high-energy Lisfranc injury].

Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2021 Apr;35(4):426-430

Department of Orthopedics, Tongji Hospital, Tongji University, Shanghai, 200065, P.R.China.

Objective: To evaluate the effectiveness of indirect fixation of the 3rd tarsometatarsal joint in the treatment of high-energy Lisfranc injury.

Methods: Between February 2015 and February 2019, 15 patients with high-energy Lisfranc injury were treated. There were 12 males and 3 females with an average age of 44. Read More

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Temporary spanning internal fixation for management of complex upper cervical spine fractures.

J Craniovertebr Junction Spine 2021 Jan-Mar;12(1):10-14. Epub 2021 Mar 4.

Department of Orthopedics College of Medicine, King Saud University, Riyadh, Saudi Arabia.

Introduction: Fractures of the upper cervical spine are often but not always amenable to either internal fixation or conservative management using a rigid cervical collar. For all other fractures in this area, management with a halo-vest orthosis is indicated, but it also has limitations. Here, we present an operative alternative to the halo-vest orthosis that provides more secure stability and less complications. Read More

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Horizontal fracture of the atlas - A rare but unstable C1 fracture.

J Craniovertebr Junction Spine 2020 Oct-Dec;11(4):338-341. Epub 2020 Nov 26.

Department of Neurosurgery, Institute of Neurological Sciences, NHS Greater Glasgow and Clyde, Glasgow, Scotland, UK.

Horizontal fractures of the atlas are uncommon fractures associated with instability of the craniocervical junction. Most commonly associated with high-speed motor vehicle accidents, these fractures need to be identified and treated appropriately. Due to its relatively benign presentation on bony imaging, magnetic resonance imaging to look for ligamentous instability is important. Read More

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November 2020

Conservative treatment and outcome of upper cervical spine fractures in young children: A STROBE-compliant case series.

Medicine (Baltimore) 2021 Apr;100(13):e25334

Department of Pediatric Surgery, University Children's Hospital Basel, University of Basel, Switzerland.

Abstract: Cervical spine (C-spine) fractures in young children are very rare, and little information on treatment modalities and functional, radiographic, and patient-reported outcome exists. In this 2-center, retrospective case series, we assessed subjective and functional mid-term outcomes in children aged ≤5 years whose C-spine fractures were treated nonoperatively.Between 2000 and 2018, 6 children (median age at injury: 23. Read More

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Posterior fixation for paediatric and adolescent unstable hangman's fracture: evolution to C1 sparing techniques.

Childs Nerv Syst 2021 Mar 30. Epub 2021 Mar 30.

Department of Neurosurgery, Neurosciences Center, All India Institute of Medical Sciences, Room No. 717, New Delhi, 110029, India.

Purpose: The aim was to study surgical outcomes in hangman's fractures in paediatric and adolescent patients and to demonstrate evolution in posterior surgery from C1-C2-C3 fusion to C1 sparing techniques.

Methods: Patients (aged ≤ 18 years) operated at a tertiary level centre between September 2011 to February 2018 with more than 1 year of follow-up were included. Neurological status, type of fracture, operating time, blood loss, follow-up, and complications were assessed. Read More

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[Open reduction and internal fixation of posterior malleolus fractures].

Oper Orthop Traumatol 2021 Apr 25;33(2):112-124. Epub 2021 Mar 25.

Sektion Fuß- und Sprunggelenkchirurgie Campus Großhadern & Innenstadt, Klinik für Allgemeine, Unfall- und Wiederherstellungschirurgie, Klinikum der Universität München, LMU München, Nussbaumstr. 20, 80336, München, Deutschland.

Objective: Stabilization of the syndesmotic complex by open reduction and internal fixation (ORIF) of the posterior malleolus, restoration of the tibial articular surface, stability of the ankle, posterior tibiofibular ligament and the incisura tibiae, reduction of the fibula into the incisura tibiae by ligamentotaxis.

Indications: Unstable ankle fractures (OTA/AO type 44-B3, C1.3, C2. Read More

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Is Bridge Plating of Comminuted Humeral Shaft Fractures Advantageous When Using Compression Plates with Three versus Two Screws per Fragment? A Biomechanical Cadaveric Study.

Biomed Res Int 2021 6;2021:6649712. Epub 2021 Mar 6.

AO Research Institute Davos, Davos, Switzerland.

Background: Minimally invasive plate osteosynthesis (MIPO) is one of the generally accepted surgical techniques for the treatment of humeral shaft fractures. However, despite the high bone union rate, a variety of complications are still prevailing. Moreover, the current literature lacks data comparing the anterolateral MIPO approach using dynamic compression plates accommodating different numbers of screws. Read More

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Does fracture-extension into the pars interarticularis alter outcomes in odontoid failure? a technical note on pars interarticularis osteotomy and atlantoaxial distraction arthrodesis.

Eur Spine J 2021 Mar 18. Epub 2021 Mar 18.

Dept. Spine Surgery, London Bridge Hospital, St Olaf House, 27 Tooley street, London, SE1 2PR, UK.

Purpose: Odontoid process fractures can extend rostral into the C2 arch. We investigated the clinical impact of a concurrent fracture of the pars interarticularis on odontoid failure. To overcome the surgical challenges related to the morphology of these fractures, we describe a novel surgical strategy using atlantoaxial joint distraction arthrodesis. Read More

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C1-C2 Distraction Ligamentous Injury Treated with Halo-Vest Application: A Case Report.

JBJS Case Connect 2021 03 17;11(1). Epub 2021 Mar 17.

Children's Orthopaedic Center, Children's Hospital Los Angeles, Los Angeles, California.

Case: There is a paucity of literature regarding pediatric upper cervical spine traumatic instability, atlanto-occipital dislocations, and fractures, with no clear treatment algorithm. We present a 12-year-old girl with significant posterior C1-C2 distraction and resultant ligamentous injury after a motor vehicle collision who was treated with a halo vest for 3 months. At 8-month follow-up, follow-up magnetic resonance imaging demonstrated complete ligamentous healing without instability on dynamic radiographs, and at 18-month follow-up, the patient made a full recovery. Read More

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Atypical Occipitocervical Dissociation Associated with Ossification of the Posterior Longitudinal Ligament and Diffuse Idiopathic Skeletal Hyperostosis in Low-Energy Trauma.

J Orthop Case Rep 2020 Nov;10(8):11-14

Department of Orthopedics, King Fahad General Hospital, Almadinah Almunawwarah, Saudi Arabia.

Introduction: Traumatic posterior occipitocervical dissociation (OCD) is a rare injury, and only a few cases have been reported in the literature. The diagnosis can be delayed or even missed because of its uncommon presentation. We present this rare case report and its management to highlight this unusual injury to increase the awareness of the existence of this pathology and prevent delayed diagnosis and treatment. Read More

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November 2020

Navigation-Assisted Posterior Open Reduction and Internal Fixation in a C-CLAMP Fashion for an Isolated C1 Fracture.

J Neurol Surg B Skull Base 2021 Feb 20;82(Suppl 1):S61-S62. Epub 2020 Mar 20.

Neurosurgical and Spine division, Centre Hospitaliere Universitaire Vadois, Lausanne, Switzerland.

C1 fractures with an intact transverse ligament are usually treated conservatively. Patients who present with a progressive diastasis of bone fragments and a progressive articular subluxation mainly attributed to progressive lengthening of the transverse ligament (TAL) fibers can be treated with a C1 "C-clamp" fusion. A 75-year-old male who sustained a motor vehicle accident was neurologically intact. Read More

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February 2021

The "AIIMS hairpin loop" technique for 'extreme' volar rim fractures of distal radius.

J Clin Orthop Trauma 2021 Apr 29;15:46-50. Epub 2020 Oct 29.

Department of Orthopaedics, All India Institute of Medical Sciences, New Delhi, India.

Background: Treatment of distal radius fractures has seen a paradigm shift since the use of volar locking plates became popular. However, there is a subset of fractures, which includes extreme distal volar rim fractures, that is often not amenable to fixation by volar locking plates as there is insufficient bone mass to put screws. These fractures as such are quite rare but carry a huge morbidity due to frequent lack of anatomical reduction and fixation. Read More

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Open reduction and navigated Iliosacral screws for vertically unstable pelvic fractures.

Injury 2021 Feb 26. Epub 2021 Feb 26.

Department of traumatology and orthopaedic surgery La Paz University Hospital Madrid (Spain).

Aims: To evaluate clinical and radiological results of vertically unstable pelvic fractures managed by open reduction and navigated iliosacral screws.

Patients And Methods: The study included eleven patients with complex posterior ring fractures with vertical instability admitted to our hospital and managed with CT navigated iliosacral screws. There were 7 type C1, 2 C2 and 2 C3, according to Tile classification. Read More

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February 2021

[Comparison of surgical effects between extension and flexion type of distal radius fracture].

Zhongguo Gu Shang 2021 Feb;34(2):101-7

Shanghai Key Laboratory of Orthopaedic Implant, Department of Orthopaedics, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200011, China.

Objective: To compare therapeutic effects of internal fixation with volar locking plate in treating extension and flexion type of distal radius fracture (DRF).

Methods: From January 2015 to June 2018, 103 patients with DRF were retrospectively analyzed. According to original fracture displacement direction, patients were divided into extension fracture(Colles) group and flexion fracture (Smith) group. Read More

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February 2021

Early reoccurrence of traumatic posterior atlantoaxial dislocation without fracture: A case report.

World J Clin Cases 2021 Feb;9(6):1461-1468

Department of Orthopedics, Yidu Central Hospital, Weifang Medical University, Qingzhou 262500, Shandong Province, China.

Background: In general, atlantoaxial dislocation is rare due to the stability of the C1-C2 complex. Traumatic atlantoaxial dislocations are usually anterior and accompanied by odontoid fractures. Posterior atlantoaxial dislocations are rare, and complete posterior dislocation without associated fracture is even more rare. Read More

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February 2021

Geometrical and Mechanical Characterization of the Abdominal Fold of Obese Post Mortem Human Subjects for Use in Human Body Modelling.

Stapp Car Crash J 2020 Nov;64:213-267

LAB PSA Peugeot Citroën Renault (France).

Obese vehicle occupants sustain specific injury patterns in case of accidents in which the interaction between the seat belt and the abdomen may play a role. This study aimed to collect geometrical characteristics and to investigate the mechanical responses of the abdomen of obese subjects. Four Post Mortem Human Subjects (PMHS) with BMI ranging from 31 to 46 kg/m were collected. Read More

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November 2020

Basivertebral foramina of true vertebrae: morphometry, topography and clinical considerations.

Surg Radiol Anat 2021 Feb 17. Epub 2021 Feb 17.

Department of Anatomy and Surgical Anatomy, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, P.O. Box 300, 54124, Thessaloniki, Greece.

Purpose: Basivertebral foramina (BVF) are openings of the posterior wall of vertebral body (VB) that lead to basivertebral canals (BVC), where homonymous neurovascular bundle courses. BVF and BVC are implicated with spinal fractures, vertebral augmentation and basivertebral nerve radiofrequency ablation. Despite their essential clinical impact, knowledge of BVF precise anatomy is scarce. Read More

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February 2021

Evolution to Pedicle Reformation Technique in Surgical Management of Hangman's Fracture.

World Neurosurg 2021 May 7;149:e481-e490. Epub 2021 Feb 7.

Department of Neurosurgery, All India Institute of Medical Sciences, New Delhi, India.

Background: Opinions vary regarding optimal treatment of unstable hangman's fractures. Recent technological advances have allowed short segment, motion preserving fixation, even in complex cases. The aim of the study was to demonstrate C1-C2 motion-preserving short-segment fusion in hangman's fracture and the evolution of technique from pedicle realignment to pedicle reformation in complex fractures with resorbed/destroyed C2 pedicles. Read More

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Traumatic atlantoaxial anteroinferior subluxation with dens and Hangman fractures: A case report.

Medicine (Baltimore) 2021 Jan;100(3):e24396

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

Rationale: Traumatic atlantoaxial anteroinferior subluxation associated with a dens fracture and a Hangman fracture is a very rare and complex injury. Therefore, appropriate surgical strategy is not established.

Patient Concerns: An 85-year-old female presented with posterior neck pain and atypical neck position caused after rolling down a hill. Read More

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January 2021

Treatment of Selected Distal Radius Fractures with Nonbridging External Fixation.

J Long Term Eff Med Implants 2020 ;30(3):199-204

Max Biedermann Institute for Biomechanics, Mount Sinai Medical Center, Miami Beach, FL; Department of Mechanical Engineering, University of Miami, Coral Gables, FL; Department of Orthopaedics, University of Miami, Miller School of Medicine, Miami, FL 33136.

A nonbridging external fixation (NBX) system with 1.6-mm diameter pins provided excellent stability for distal radius fractures in cadavers. For the present study, all patients with distal radius fractures were seen by the surgeon authors. Read More

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January 2020

Hemiparesis resulting from an unusual C1 fracture: A case report and literature review.

Surg Neurol Int 2020 22;11:449. Epub 2020 Dec 22.

Department ofNeurosurgery, Centre Hospitalier de l'Université de Montréal, Montréal, Québec, Canada.

Background: Jefferson fractures are burst fractures involving both the anterior and posterior arches of C1. They typically result from axial compression or hyperextension injuries. Most are stable, and neurological deficits are rare. Read More

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December 2020

Craniocervical fractures management in case of craniocervical pneumatization: case report and review of the literature.

Acta Neurochir (Wien) 2021 Jan 3. Epub 2021 Jan 3.

Neurosurgical Unit, Faculty of Medicine, Geneva University Hospitals, University of Geneva, Rue Gabrielle-Perret-Gentil 4, 1205, Geneva, Switzerland.

Introduction: Extensive craniocervical pneumatization (CCP) refers to an abnormal pneumatization extended from the temporal bone into adjacent bone structures, especially the skull base and the craniocervical junction. The etiology remains controversial; however several studies reported a correlation with recurrent Valsalva maneuvers or Eustachian tube dysfunction. Although some cases requiring surgical treatment have been reported, conservative treatment remains the gold standard. Read More

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January 2021