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Afshari FT, Rodrigues D, Solanki GA. Dens Growth After Surgical Fixation in Children with Morquio-Brailsford Disease. World Neurosurg 2024; 185:89-90. [PMID: 38340798 DOI: 10.1016/j.wneu.2024.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 02/01/2024] [Accepted: 02/02/2024] [Indexed: 02/12/2024]
Abstract
Mucopolysaccharidosis type IVA is a lysosomal storage disorder caused by a deficiency of the enzyme N-acetyl-galactosamine-6-sulphate sulphatase. Mucopolysaccharidosis type IVA is multisystemic disease with significant spinal involvement and atlantoaxial instability leading to neural compression and significant morbidity. Dens hypoplasia is a common feature of this condition. In this study we demonstrate that after spinal fixation, there is new growth of dens in significant proportion of patients, suggesting atlantoaxial instability as one of the major driving forces of lack of development of dens in this condition.
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Affiliation(s)
- Fardad T Afshari
- Department of Neurosurgery, Birmingham Children's Hospital, Birmingham, England.
| | - Desiderio Rodrigues
- Department of Neurosurgery, Birmingham Children's Hospital, Birmingham, England
| | - Guirish A Solanki
- Department of Neurosurgery, Birmingham Children's Hospital, Birmingham, England
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Johnstone T, Shah V, Schonfeld E, Sadeghzadeh S, Haider G, Marianayagam NJ, Stienen M, Veeravagu A. Type II odontoid fractures in the elderly presenting to the emergency department: an assessment of factors affecting in-hospital mortality and discharge to skilled nursing facilities. Spine J 2024; 24:682-691. [PMID: 38101547 DOI: 10.1016/j.spinee.2023.11.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 11/14/2023] [Accepted: 11/27/2023] [Indexed: 12/17/2023]
Abstract
BACKGROUND CONTEXT Type II odontoid fractures (OF) are among the most common cervical spine injuries in the geriatric population. However, there is a paucity of literature regarding their epidemiology. Additionally, the optimal management of these injuries remains controversial, and no study has evaluated the short-term outcomes of geriatric patients presenting to emergency departments (ED). PURPOSE This study aims to document the epidemiology of geriatric patients presenting to EDs with type II OFs and determine whether surgical management was associated with early adverse outcomes such as in-hospital mortality and discharge to skilled nursing facilities (SNF). STUDY DESIGN This is a retrospective cohort study. PATIENT SAMPLE Data was used from the 2016-2020 Nationwide Emergency Department Sample. Patient encounters corresponding to type II OFs were identified. Patients younger than 65 at the time of presentation to the ED and those with concomitant spinal pathology were excluded. OUTCOME MEASURES The association between the surgical management of geriatric type II OFs and outcomes such as in-hospital mortality and discharge to SNFs. METHODS Patient, fracture, and surgical management characteristics were recorded. A propensity score matched cohort was constructed to reduce differences in age, comorbidities, and injury severity between patients undergoing operative and nonoperative management. Additionally, to develop a positive control for the analysis of geriatric patients with type II OFs and no other concomitant spinal pathology, a cohort of patients that had been excluded due to the presence of a concomitant spinal cord injury (SCI) was also constructed. Multivariate regressions were then performed on both the matched and unmatched cohorts to ascertain the associations between surgical treatment and in-hospital mortality, inpatient length of stay, encounter charges, and discharge to SNFs. RESULTS A total of 11,325 encounters were included. The mean total charge per encounter was $60,221. 634 (5.6%) patients passed away during their encounters. In total, 1,005 (8.9%) patients were managed surgically. Surgical management of type II OFs was associated with a 316% increase in visit charge (95% CI: 291%-341%, p<.001), increased inpatient length of stay (IRR: 2.87, 95% CI: 2.62-3.12, p<.001), and increased likelihood of discharge to SNFs (OR=2.62, 95% CI: 2.26-3.05, p<.001), but decreased in-hospital mortality (OR=0.32, CI: 0.21-0.45, p<.001). The propensity score matched cohort consisted of 2,010 patients, matching each of the 1,005 that underwent surgery to 1,005 that did not. These cohorts were well balanced across age (78.24 vs 77.91 years), Elixhauser Comorbidity Index (3.68 vs 3.71), and Injury Severity Score (30.15 vs 28.93). This matching did not meaningfully alter the associations determined between surgical management and in-hospital mortality (OR=0.34, CI=0.21-0.55, p<.001) or SNF discharge (OR=2.59, CI=2.13-3.16, p<.001). Lastly, the positive control cohort of patients with concurrent SCI had higher rates of SNF discharge (50.0% vs 42.6%, p<.001), surgical management (32.3% vs 9.7%, p<.001), and in-hospital mortality (28.9% vs 5.6%, p<.001). CONCLUSIONS This study lends insight into the epidemiology of geriatric type II OFs and quantifies risk factors influencing adverse outcomes. Patient informed consent should include a discussion of the protective association between definitive surgical management and in-hospital mortality against potential operative morbidity, increased lengths of hospital stay, and increased likelihood of discharge to SNFs. This information may impact patient treatment selection and decision making.
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Affiliation(s)
- Thomas Johnstone
- Stanford University School of Medicine, 453 Quarry Rd, Palo Alto, CA 94304, USA; Department of Neurosurgery, School of Medicine, Stanford University. 453 Quarry Rd, Stanford, CA 94305 USA.
| | - Vaibhavi Shah
- Stanford University School of Medicine, 453 Quarry Rd, Palo Alto, CA 94304, USA; Department of Neurosurgery, School of Medicine, Stanford University. 453 Quarry Rd, Stanford, CA 94305 USA
| | - Ethan Schonfeld
- Department of Neurosurgery, School of Medicine, Stanford University. 453 Quarry Rd, Stanford, CA 94305 USA
| | - Sina Sadeghzadeh
- Stanford University School of Medicine, 453 Quarry Rd, Palo Alto, CA 94304, USA; Department of Neurosurgery, School of Medicine, Stanford University. 453 Quarry Rd, Stanford, CA 94305 USA
| | - Ghani Haider
- Department of Neurosurgery, School of Medicine, Stanford University. 453 Quarry Rd, Stanford, CA 94305 USA
| | - Neelan J Marianayagam
- Department of Neurosurgery, School of Medicine, Stanford University. 453 Quarry Rd, Stanford, CA 94305 USA
| | - Martin Stienen
- Department of Neurosurgery & Spine Center of Eastern Switzerland, Kantonsspital St.Gallen, St.Gallen, Switzerland
| | - Anand Veeravagu
- Department of Neurosurgery, School of Medicine, Stanford University. 453 Quarry Rd, Stanford, CA 94305 USA
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Frati A, Cimatti M, Ileyassoff H, Capobianco M, Santoro A, Armocida D. Combined Anterior Odontoid Screw Fixation and C1-C2 Jefferson Fracture Anterior Fixation: A Step-by-Step Technical Note. World Neurosurg 2024; 184:112-118. [PMID: 38266989 DOI: 10.1016/j.wneu.2024.01.094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 01/13/2024] [Accepted: 01/16/2024] [Indexed: 01/26/2024]
Abstract
BACKGROUND Combined triple atlas (C1)-axis (C2) fixation has been described in previous literature as a safe, effective, and minimally invasive procedure for complex atlas and odontoid fractures that allows for a greater range of motion compared with posterior approaches and atlanto-occipital fusion. However, it is rarely performed due to the occipital-cervical diastasis resulting from often-fractured C1 joint masses. No evidence-based consensus has been reached regarding the treatment of complex atlantoaxial fractures, and the choice of surgical strategy is based only on clinical experience. METHODS We report the combined triple C1-C2 fixation technique with manual reduction of the joint masses during patient positioning on the operating table, which allowed for effective stabilization during a single surgical session. We describe our experience in the management of a 75-year-old patient presenting with an acute complex type II fracture of C1, which also involved 1 lateral mass, combined with a type II odontoid fracture and occipital-cervical diastasis. RESULTS We provide a step-by-step guide for combined triple C1-C2 anterior fixation with manual fracture reduction and describe the clinical case of an acute complex type II fracture of C1, which also involved 1 lateral mass, combined with a type II odontoid fracture and occipital-cervical diastasis. CONCLUSIONS Combined triple C1-C2 fixation represents a safe and efficient minimally invasive anterior approach for complex type II fractures of C1 with type II odontoid fractures. Manual reduction of the joint masses during patient positioning allows for effective stabilization in a single surgical session.
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Affiliation(s)
- Alessandro Frati
- Experimental Neurosurgery Unit, IRCCS Ist Neurologico Mediterraneo Neuromed, Pozzilli, Italy
| | - Marco Cimatti
- Neurosurgery Service, Azienda Ospedaliera-Universitaria Sant'Andrea, Sapienza University of Rome, Rome, Italy
| | - Hernán Ileyassoff
- Department of Neurosurgery, Policlinico Umberto I, Sapienza University of Rome, Rome, Italy
| | - Mattia Capobianco
- Department of Neurosurgery, Policlinico Umberto I, Sapienza University of Rome, Rome, Italy
| | - Antonio Santoro
- Department of Neurosurgery, Policlinico Umberto I, Sapienza University of Rome, Rome, Italy
| | - Daniele Armocida
- Experimental Neurosurgery Unit, IRCCS Ist Neurologico Mediterraneo Neuromed, Pozzilli, Italy; Department of Neurosurgery, Policlinico Umberto I, Sapienza University of Rome, Rome, Italy.
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Lim P, Clark AJ, Deviren V, Berven SH, Burch S, Ames CP, Theologis AA. Odontoid fractures above C2 to pelvis posterior instrumented fusions: a single center's 11-year experience. Spine Deform 2024; 12:463-471. [PMID: 38157096 PMCID: PMC10866802 DOI: 10.1007/s43390-023-00800-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Accepted: 11/25/2023] [Indexed: 01/03/2024]
Abstract
PURPOSE To define the prevalence, characteristics, and treatment approach for proximal junction failure secondary to odontoid fractures in patients with prior C2-pelvis posterior instrumented fusions (PSF). METHODS A single institution's database was queried for multi-level fusions (6+ levels), including a cervical component. Posterior instrumentation from C2-pelvis and minimum 6-month follow-up was inclusion criteria. Patients who sustained dens fractures were identified; each fracture was subdivided based on Anderson & D'Alonzo and Grauer's classifications. Comparisons between the groups were performed using Chi-square and T tests. RESULTS 80 patients (71.3% female; average age 68.1 ± 8.1 years; 45.0% osteoporosis) were included. Average follow-up was 59.8 ± 42.7 months. Six patients (7.5%) suffered an odontoid fracture post-operatively. Cause of fracture in all patients was a mechanical fall. Average time to fracture was 23 ± 23.1 months. Average follow-up after initiation of fracture management was 5.84 ± 4 years (minimum 1 year). Three patients sustained type IIA fractures one of which had a concomitant unilateral C2 pars fracture. Three patients sustained comminuted type III fractures with concomitant unilateral C2 pars fractures. Initial treatment included operative care in 2 patients, and an attempt at non-operative care in 4. Non-operative care failed in 75% of patients who ultimately required revision with proximal extension. All patients with a concomitant pars fracture had failure of non-operative care. Patients with an intact pars were more stable, but 50% required revision for pain. CONCLUSIONS In this 11-year experience at a single institution, the prevalence of odontoid fractures above a C2-pelvis PSF was 7.5%. Fracture morphology varied, but 50% were complex, comminuted C2 body fractures with concomitant pars fractures. While nonoperative management may be suitable for type II fractures with simple patterns, more complex and unstable fractures likely benefit from upfront surgical intervention to prevent fracture displacement and neural compression. As all fractures occurred secondary to a mechanical fall, inpatient and community measures aimed to minimize risk and prevent mechanical falls would be beneficial in this high-risk group.
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Affiliation(s)
- Perry Lim
- Department of Orthopaedic Surgery, University of California-San Francisco (UCSF), 500 Parnassus Ave, MUW 3 Floor, San Francisco, CA, 94143, USA
| | - Aaron J Clark
- Department of Neurological Surgery, UCSF, San Francisco, CA, USA
| | - Vedat Deviren
- Department of Orthopaedic Surgery, University of California-San Francisco (UCSF), 500 Parnassus Ave, MUW 3 Floor, San Francisco, CA, 94143, USA
| | - Sigurd H Berven
- Department of Orthopaedic Surgery, University of California-San Francisco (UCSF), 500 Parnassus Ave, MUW 3 Floor, San Francisco, CA, 94143, USA
| | - Shane Burch
- Department of Orthopaedic Surgery, University of California-San Francisco (UCSF), 500 Parnassus Ave, MUW 3 Floor, San Francisco, CA, 94143, USA
| | | | - Alekos A Theologis
- Department of Orthopaedic Surgery, University of California-San Francisco (UCSF), 500 Parnassus Ave, MUW 3 Floor, San Francisco, CA, 94143, USA.
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Ruiz Hernández A, González Arnáiz E. Dysphagia as a primary manifestation of basilar impression: A case report. ENDOCRINOL DIAB NUTR 2024; 71:133-137. [PMID: 38555110 DOI: 10.1016/j.endien.2024.03.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Accepted: 01/08/2024] [Indexed: 04/02/2024]
Abstract
Secondary basilar invagination or basilar impression is an anomaly at the craniovertebral junction where the odontoid process prolapses into the foramen magnum with the risk of compressing adjacent structures and obstructing the proper flow of cerebrospinal fluid (CSF). The incidence is less than 1% in the general population and occurs mainly in the first three decades of life when it is associated with malformations of the neuroaxis. In older age, the main aetiologies are diseases that alter bone mineral density. The clinical course is usually progressive and the most common symptoms are asthenia, cervical pain and restricted movement, but also dysphonia, dyspnoea and dysphagia. It is a progressive disease which, if left untreated, can cause severe neurological damage and death. We report the case of a 79-year-old woman with osteoporosis and progressive dysphagia leading to severe malnutrition, which conditioned the decision not to intervene due to the high perioperative risk.
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Affiliation(s)
| | - Elena González Arnáiz
- Servicio de Endocrinología y Nutrición del Complejo Asistencial Universitario de León, Spain
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Algattas HN, Alattar AA, Okonkwo DO, Wang EW, Snyderman CH, Hamilton DK, Friedlander RM, Zenonos GA, Gardner PA. A novel classification and management scheme for craniocervical junction disorders with ventral neural element compression. J Neurosurg 2024; 140:585-594. [PMID: 37503952 DOI: 10.3171/2023.5.jns23677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Accepted: 05/19/2023] [Indexed: 07/29/2023]
Abstract
OBJECTIVE Craniocervical junction (CCJ) pathologies with ventral neural element compression are poorly understood, and appropriate management requires accurate understanding, description, and a more uniform nomenclature. The aim of this study was to evaluate patients to identify anatomical clusters and better classify CCJ disorders with ventral compression and guide treatment. METHODS A retrospective review of adult and pediatric patients with ventral CCJ compression from 2008 to 2022 at a single center was performed. The incidence of anatomical abnormalities and compressive etiologies was assessed. Surgical approach, radiographic data, and outcomes were recorded. Association rules analysis (ARA) was used to assess variable clustering. RESULTS Among 51 patients, the main causes of compression were either purely bony (retroflexed dens [n = 18]; basilar invagination [BI; n = 13]) or soft tissue (degenerative pannus [n = 16]; inflammatory pannus [n = 2]). The primary cluster in ARA was a retroflexed dens, platybasia, and Chiari malformation (CM), and the secondary cluster was BI, C1-2 subluxation, and reducibility. These, along with degenerative pannus, formed the three major classes. In assessing the optimal treatment strategy, reducibility was evaluated. Of the BI cases, 12 of the 13 patients had anterolisthesis of C1 that was potentially reducible, compared with 2 of the 18 patients with a retroflexed dens (both with concomitant BI), and no pannus cases. The mean C1-2 facet angle was significantly higher in BI at 32.4°, compared with -2.3° in retroflexed dens and 8.1° in degenerative pannus (p < 0.05). Endonasal decompression with posterior fixation was performed in 48 (94.0%) of the 51 patients, whereas posterior reduction/fixation alone was performed in 3 patients (6.0%). Of 16 reducible cases, open posterior reduction alone was successful in 3 (60.0%) of 5 cases, with all successes containing isolated BI. Reduction was not attempted if vertebral anatomy was unfavorable (n = 9) or the C1 lateral mass was absent (n = 5). The mean follow-up was 28 months. Symptoms improved in 88.9% of patients and were stable in the remaining 11.1%. Tracheostomy and percutaneous G-tube placement occurred in 7.8% and 11.8% of patients, respectively. Reoperation for an endonasal CSF leak repair or posterior cervical wound revision both occurred in 3.9% of patients. CONCLUSIONS In classifying, one cluster caused decreased posterior fossa volume due to an anatomical triad of retroflexed dens, platybasia, and CM. The second cluster caused pannus formation due to degenerative hypertrophy. For both, endonasal decompression with posterior fixation was ideal. The third group contained C1 anterolisthesis characterized by a steep C1-2 facet angle causing reducible BI. Posterior reduction/fixation is the first-line treatment when anatomically feasible or endonasal decompression with in situ posterior fixation when anatomical constraints exist.
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Affiliation(s)
| | | | | | - Eric W Wang
- 2Otolaryngology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
| | - Carl H Snyderman
- 2Otolaryngology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania
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Foote CW, Salottolo K, Doan XL, Vanier C, Betancourt AJ, Bar-Or D, Palacio CH. Operative Management Improves Near-term Survival of Patients With Odontoid Type II Fractures: A Propensity-matched National Registry Analysis. Clin Spine Surg 2024; 37:15-22. [PMID: 37651564 PMCID: PMC10810352 DOI: 10.1097/bsd.0000000000001511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Accepted: 07/19/2023] [Indexed: 09/02/2023]
Abstract
STUDY DESIGN National Trauma Data Bank (NTDB) review and propensity-matched analysis. OBJECTIVE To evaluate differences in clinical outcomes by operative management. SUMMARY OF BACKGROUND DATA Odontoid type II fractures are the most prevalent cervical fracture. Operative intervention on these fractures is frequently debated; surgical risks are compounded by clinical severity, patient age, and comorbidities. METHODS This registry review included index admissions for odontoid type II fractures [International Classification of Diseases (ICD)-10 codes beginning with S12.11] from 1/1/2017 to 1/1/2020; patients who died in the emergency department (ED) were excluded. Propensity score techniques were used to match patients 1:1 by surgical management, using a caliper distance of 0.05, after matching on the following covariates that differed significantly between surgical and nonsurgical patients: age, sex, race, cause of injury, transfer status, injury severity score, ED Glasgow coma score, ED systolic blood pressure, presence of transverse ligamentous injury, cervical dislocation, and 8 comorbidities. The following outcomes were analyzed with McNemar tests and Wilcoxon signed-rank tests: near-term survival (discharged from the hospital to locations other than morgue or hospice), intensive care unit (ICU) admission, hospital complications, median hospital length of stay (LOS), and median ICU LOS. RESULTS There were 16,607 patients, 2916 (17.6%) were operatively managed and 13,691 were nonoperatively managed. Before matching, survival was greater for patients managed operatively compared with nonoperatively (95.0% vs. 88.2%). The matched population consisted of 5334 patients: 2667 patients in the operative group (91.5% of this population) and 2667 well-matched patients in the nonoperative group. After matching, there was a survival benefit for patients who were operatively managed compared with nonoperative management (94.8% vs. 91.4% P <0.001). However, operative management was associated with greater development of complications, ICU admission, and longer hospital and ICU LOS. CONCLUSION Compared with nonoperative management, operative management demonstrated a significant near-term survival benefit for patients with odontoid type II fractures in select patients. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Christopher W. Foote
- South Texas Health System Trauma Department, McAllen Medical Center, McAllen, TX
- Valley Health System General Surgery Residency Program, Las Vegas, NV
| | | | - Xuan-Lan Doan
- South Texas Health System Trauma Department, McAllen Medical Center, McAllen, TX
- Valley Health System General Surgery Residency Program, Las Vegas, NV
| | - Cheryl Vanier
- Touro University Nevada College of Osteopathic Medicine, Henderson, NV
| | | | - David Bar-Or
- Trauma Research Department, McAllen Medical Center, McAllen, TX
| | - Carlos H. Palacio
- South Texas Health System Trauma Department, McAllen Medical Center, McAllen, TX
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Lu Q, Tang J, Xie W, Mei X, Kang H, Liu X, Xu F, Cai X. Anterior atlantoaxial motion preservation fixation technique for axis complex fractures (odontoid process with Hangman's fractures) and technique notes. Sci Rep 2024; 14:687. [PMID: 38182723 PMCID: PMC10770067 DOI: 10.1038/s41598-024-51367-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Accepted: 01/04/2024] [Indexed: 01/07/2024] Open
Abstract
This study aims to investigate the feasibility and efficacy of anterior atlantoaxial motion preservation fixation (AMPF) in treating axis complex fractures involving the odontoid process fracture and Hangman's fractures with C2/3 instability. A retrospective study was conducted on eight patients who underwent AMPF for axis complex fractures at the General Hospital of Central Theater Command from February 2004 to October 2021. The types of axis injuries, reasons for injuries, surgery time, intraoperative blood loss, spinal cord injury classification (American Spinal Injury Association, ASIA), as well as complications and technical notes, were documented. This study included eight cases of type II Hangman's fracture, five cases of type II and three cases of type III odontoid process fracture. Five patients experienced traffic accidents, while three patients experienced falling injuries. All patients underwent AMPF surgery with an average intraoperative blood loss of 288.75 mL and a duration of 174.5 min. Two patients experienced dysphagia 1 month after surgery. The patients were followed up for an average of 15.63 months. One case improved from C to E in terms of neurological condition, three cases improved from D to E, and four cases remained at E. Bony fusion and Atlantoaxial Motion Preservation were successfully achieved for all eight patients. AMPF is a feasible and effective way for simultaneous odontoid process fracture and Hangman's fractures with C2/3 instability, while preserving atlantoaxial movement.
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Affiliation(s)
- Qilin Lu
- Department of Orthopedics, The Affiliated Hospital of Wuhan Sports University, Wuhan, Hubei, People's Republic of China
| | - Jin Tang
- Department of Orthopedics, The Affiliated Hospital of Wuhan Sports University, Wuhan, Hubei, People's Republic of China
| | - Wei Xie
- Department of Orthopedics, The Affiliated Hospital of Wuhan Sports University, Wuhan, Hubei, People's Republic of China
| | - Xianzhong Mei
- Department of Orthopedics, Shenzhen Pingle Orthopedic Hospital, Shenzhen, Guangdong, People's Republic of China
| | - Hui Kang
- Department of Orthopaedics, General Hospital of Central Theater Command, Wuhan, Hubei, People's Republic of China
| | - Ximing Liu
- Department of Orthopaedics, General Hospital of Central Theater Command, Wuhan, Hubei, People's Republic of China
| | - Feng Xu
- Department of Orthopaedics, General Hospital of Central Theater Command, Wuhan, Hubei, People's Republic of China
| | - Xianhua Cai
- Department of Orthopaedics, South China Hospital of Shenzhen University, No. 1 Fuxin Road, Longgang District, Shenzhen, 518111, Guangdong, People's Republic of China.
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Avila MJ, Farber SH, Rabah NM, Hopp MJ, Chapple KM, Hurlbert RJ, Tumialán LM. Nonoperative versus operative management of type II odontoid fracture in older adults: a systematic review and meta-analysis. J Neurosurg Spine 2024; 40:45-53. [PMID: 37877937 DOI: 10.3171/2023.6.spine22920] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 06/26/2023] [Indexed: 10/26/2023]
Abstract
OBJECTIVE Odontoid fractures are the most common fracture of the cervical spine in adults older than 65 years of age. Fracture management remains controversial, given the inherently increased surgical risks in older patients. The objective of this study was to compare fusion rates and outcomes between operative and nonoperative treatments of type II odontoid fractures in the older population. METHODS A systematic literature review was performed to identify studies reporting the management of type II odontoid fractures in patients older than 65 years from database inception to September 2022. A meta-analysis was performed to compare rates of fusion, stable and unstable nonunion, mortality, and complication. RESULTS Forty-six articles were included in the final review. There were 2822 patients included in the different studies (48.9% female, 51.1% male), with a mean ± SD age of 81.5 ± 3.6 years. Patients in the operative group were significantly younger than patients in the nonoperative group (81.5 ± 3.5 vs 83.4 ± 2.5 years, p < 0.001). The overall (operative and nonoperative patients) fusion rate was 52.9% (720/1361). The fusion rate was higher in patients who underwent surgery (74.3%) than in those who underwent nonoperative management (40.3%) (OR 4.27, 95% CI 3.36-5.44). The likelihood of stable or unstable nonunion was lower in patients who underwent surgery (OR 0.37, 95% CI 0.28-0.49 vs OR 0.32, 95% CI 0.22-0.47). Overall, 4.8% (46/964) of nonoperatively managed patients subsequently required surgery due to treatment failure. Patient mortality across all studies was 16.6% (452/2721), lower in the operative cohort (13.2%) than the nonoperative cohort (19.0%) (OR 0.64, 95% CI 0.52-0.80). Complications were more likely in patients who underwent surgery (26.0% vs 18.5%) (OR 1.55, 95% CI 1.23-1.95). Length of stay was also higher with surgery (13.6 ± 3.8 vs 8.1 ± 1.9 days, p < 0.001). CONCLUSIONS Patients older than 65 years of age with type II odontoid fractures had higher fusion rates when treated with surgery and higher stable nonunion rates when managed nonoperatively. Complications and length of stay were higher in the surgical cohort. Mortality rates were lower in patients managed with surgery, but this phenomenon could be related to surgical selection bias. Fewer than 5% of patients who underwent nonoperative treatment required revision surgery due to treatment failure, suggesting that stable nonunion is an acceptable treatment goal.
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Affiliation(s)
| | - S Harrison Farber
- 2Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona
| | - Nicholas M Rabah
- 2Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona
| | - Morgan J Hopp
- 2Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona
| | - Kristina M Chapple
- 2Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona
| | - R John Hurlbert
- 1Department of Neurosurgery, University of Arizona, Tucson; and
| | - Luis M Tumialán
- 2Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona
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Müller JU, Nowak S, Matthes M, Pillich DT, Schroeder HWS, Müller J. Biomechanical comparison of two different compression screws for the treatment of odontoid fractures in human dens axis specimen. Clin Biomech (Bristol, Avon) 2024; 111:106162. [PMID: 38159327 DOI: 10.1016/j.clinbiomech.2023.106162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2023] [Revised: 12/13/2023] [Accepted: 12/21/2023] [Indexed: 01/03/2024]
Abstract
BACKGROUND Lag screw osteosynthesis for odontoid fractures has a high rate of pseudoarthrosis, especially in elderly patients. Besides biomechanical properties of the different screw types, insufficient fragment compression or unnoticed screw stripping may be the main causing factors for this adverse event. The aim of the study was to compare two screws in clinical use with different design principles in terms of compression force and stability against screw stripping. METHODS Twelve human cadaveric C2 vertebral bodies were considered. Bone density was determined. The specimens were matched according to bone density and randomly assigned to two experimental groups. An odontoid fracture was induced, which were fixed either with a 3.5 mm standard compression screw or with a 5 mm sleeve nut screw. Both screws are certified for the treatment of odontoid fractures. The bone samples were fixed in a measuring device. The screwdriver was driven mechanically. The tests were analyzed for peak interfragmentary compression and screw-in torque with a frequency of 20 Hz. FINDINGS The maximum fragment compression was significantly higher with screw with sleeve nut at 346.13(SD ±72.35) N compared with classic compression screw at 162.68(SD ±114.13) N (p = 0.025). Screw stripping occurred significantly earlier in classic compression screw at 255.5(SD ±192.0)° rotation after reaching maximum compression than in screw with sleeve nut at 1005.2(SD ±341.1)° (p = 0.0039). INTERPRETATION Screw with sleeve nut achieves greater fragment compression and is more robust to screw stripping compared to classic compression screw. Whether the better biomechanical properties lead to a reduction of pseudoarthrosis has to be proven in clinical studies.
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Affiliation(s)
- Jan-Uwe Müller
- Department of Neurosurgery, University Medicine, Greifswald, Germany.
| | - Stephan Nowak
- Department of Neurosurgery, University Medicine, Greifswald, Germany
| | - Marc Matthes
- Department of Neurosurgery, University Medicine, Greifswald, Germany
| | | | | | - Jonas Müller
- Department of Neurosurgery, University Medicine, Greifswald, Germany
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Ammanuel SG, Page PS, Brooks NP, Resnick DK. Development of a Predictive Model for Persistent Instability Following Conservative Management of Type II Odontoid Fractures. World Neurosurg 2024; 181:e422-e426. [PMID: 37863424 DOI: 10.1016/j.wneu.2023.10.073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 10/12/2023] [Accepted: 10/13/2023] [Indexed: 10/22/2023]
Abstract
BACKGROUND Odontoid fractures are common cervical spine fractures; however, significant controversy exists regarding their treatment. Risk factors for failure of conservative therapy have been identified, although no predictive risk score has been developed to aid in decision-making. METHODS A retrospective review was conducted of all patients evaluated at a level 1 trauma center. Patients identified with type II odontoid fractures as classified by the D'Alonzo Classification system who were treated with external orthosis were included in analysis. Patients were considered to have failed conservative therapy if they were offered surgical intervention. A machine learning method (Risk-SLIM) was then utilized to create a risk stratification score based on risk factors to identify patients at high risk for requiring surgical intervention due to persistent instability. RESULTS A total of 138 patients were identified as presenting with type II odontoid fractures that were treated conservatively; 38 patients were offered surgery for persistent instability. The Odontoid Fracture Predictive Model (OFPM) was created using a machine learning algorithm with a 5-fold cross validation area under the curve of 0.7389 (95% CI: 0.671 to 0.808). Predictive factors were found to include fracture displacement, displacement greater than 5 mm, comminution at the fracture base, and history of smoking. The probability of persistent instability was <5% with a score of 0 and 88% with a score of 5. CONCLUSIONS The OFPM model is a unique, quick, and accurate tool to assist in clinical decision-making in patients with type II odontoid fractures. External validation is necessary to evaluate the validity of these findings.
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Affiliation(s)
- Simon G Ammanuel
- Department of Neurological Surgery, University of Wisconsin Hospitals and Clinics, Madison, Wisconsin, USA.
| | - Paul S Page
- Department of Neurological Surgery, University of Wisconsin Hospitals and Clinics, Madison, Wisconsin, USA
| | - Nathaniel P Brooks
- Department of Neurological Surgery, University of Wisconsin Hospitals and Clinics, Madison, Wisconsin, USA
| | - Daniel K Resnick
- Department of Neurological Surgery, University of Wisconsin Hospitals and Clinics, Madison, Wisconsin, USA
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12
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Surgery Decreases Nonunion, Myelopathy, and Mortality for Patients With Traumatic Odontoid Fractures: A Propensity Score Matched Analysis: Corrigendum. Neurosurgery 2023; 93:e177. [PMID: 37782108 DOI: 10.1227/neu.0000000000002705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/03/2023] Open
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13
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Diaz S, Zenkhri S, Omoumi P, Maeder B, Penet N, Rothenfluh D, Barges-Coll J. C2 Odontoid Fracture Associated with C1-C2 Rotatory Dislocation: A Retrospective Analysis of 2 Surgical Techniques. World Neurosurg 2023; 180:e460-e467. [PMID: 37777174 DOI: 10.1016/j.wneu.2023.09.089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 09/20/2023] [Accepted: 09/21/2023] [Indexed: 10/02/2023]
Abstract
BACKGROUND Odontoid fractures in association with a C1-C2 rotatory luxation reports are seldom found in the literature. The fusion between the lateral mass of C1 and C2 could be of interest to ensure adequate treatment in these particular cases. We report 23 cases where there was coexistence of an odontoid fracture and rotatory subluxation, which were treated surgically using cages between C1 and C2 or just traditional Goel-Harms technique. We evaluated the radiologic fusion rate, reoperation rate, and complications. METHODS This was a single-center, retrospective, cohort study of patients with C2 fractures (mixed type and C1-C2 rotatory luxation according to the Fielding classification) who were treated surgically. Radiologic computed tomography scans were used to assess fusion (presence of bridging trabecular bone end plate or pseudoarthrosis) between 6 months and 1.5 years after the surgery. RESULTS Twenty-three patients were diagnosed with C2 fractures and C1-C2 rotatory luxation that were treated surgically and were suitable for the analysis; 11 patients underwent C1-C2 fusion with intra-articular cages, and 12 underwent a classical Goel-Harms technique. The fusion rate at the C1-C2 joint was higher in the cages group. Only 12 patients exhibited fusion at the level of the odontoid fracture. CONCLUSIONS C2 fractures associated with C1-C2 rotatory dislocation are rare. The fusion rate at the level of the odontoid in these patients appears to be lower than that reported in patients without rotatory dislocation. It may be of special interest to obtain a clear fusion at the C1-C2 joint, where this type of implant seems to offer an advantage.
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Affiliation(s)
- Simon Diaz
- Spine Center, Lausanne University Hospital (CHUV), Lausanne, Switzerland; Faculty of Biology and Medicine (FBM), University of Lausanne (UNIL), Lausanne, Switzerland; Department of Neurosurgery, University Hospital of Lausanne and Faculty of Biology and Medicine, University of Lausanne, Lausanne, Switzerland
| | - Salim Zenkhri
- Department of Radiology, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland
| | - Patrick Omoumi
- Department of Radiology, Lausanne University Hospital, University of Lausanne, Lausanne, Switzerland
| | - Benoit Maeder
- Spine Center, Lausanne University Hospital (CHUV), Lausanne, Switzerland; Faculty of Biology and Medicine (FBM), University of Lausanne (UNIL), Lausanne, Switzerland
| | - Nicolas Penet
- Spine Center, Lausanne University Hospital (CHUV), Lausanne, Switzerland; Faculty of Biology and Medicine (FBM), University of Lausanne (UNIL), Lausanne, Switzerland
| | - Dominique Rothenfluh
- Spine Center, Lausanne University Hospital (CHUV), Lausanne, Switzerland; Faculty of Biology and Medicine (FBM), University of Lausanne (UNIL), Lausanne, Switzerland
| | - Juan Barges-Coll
- Spine Center, Lausanne University Hospital (CHUV), Lausanne, Switzerland; Faculty of Biology and Medicine (FBM), University of Lausanne (UNIL), Lausanne, Switzerland.
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Ai Y, Alemayehu DG, Mao G, Liang Y, Cao R, Hu J, Yang Y, Ren Z. Feasibility of Two-Screw Anterior Fixation for Odontoid Fractures in a Chinese Population: A Morphometric Study Based on Computed Tomography. Clin Orthop Surg 2023; 15:983-988. [PMID: 38045572 PMCID: PMC10689213 DOI: 10.4055/cios23094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/29/2023] [Revised: 07/03/2023] [Accepted: 07/26/2023] [Indexed: 12/05/2023] Open
Abstract
Background To evaluate the feasibility of treating odontoid fractures in the Chinese population with two cortical screws based on computed tomography (CT) scans and describe a new measurement strategy to guide screw insertion in treating these fractures. Methods A retrospective review of cervical computed tomographic scans of 128 patients (aged 18-76 years; men, 55 [43.0%]) was performed. The minimum external transverse diameter (METD), minimum external anteroposterior diameter (MEAD), maximum screw length (MSL), and screw projection back angle (SPBA) of the odontoid process were measured on coronal and sagittal CT images. Results The mean values of METD and MEAD were 10.0 ± 1.1 mm and 12.0 ± 1.0 mm, respectively, in men and 9.2 ± 1.0 mm and 11.0 ± 1.0 mm, respectively, in women. Both measurements were significantly higher in men (p < 0.001). In total, 87 individuals (68%) had METD > 9.0 mm that could accommodate two 3.5-mm cortical screws. The mean MSL value and SPBA range were 34.4 ± 2.9 mm and 13.5°-24.2°, respectively, with no statistically significant difference between men and women. Conclusions The insertion of two 3.5-mm cortical screws was possible for anterior fixation of odontoid fractures in 87 patients (68%) in our study, and there was a statistically significant difference between men and women.
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Affiliation(s)
- Yixiang Ai
- Department of Orthopedics, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Dereje Gobena Alemayehu
- Department of Orthopedics, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Genwen Mao
- Department of Orthopedics, The Second Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | | | - Ran Cao
- Xi’an Jiaotong University, Xi’an, China
| | - Jiale Hu
- Xi’an Jiaotong University, Xi’an, China
| | - Yimin Yang
- Department of Orthopedics, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
| | - Zhiwei Ren
- Department of Orthopedics, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, China
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15
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Jung MK, Hörnig L, Raisch P, Grützner PA, Kreinest M. Odontoid fracture in geriatric patients - analysis of complications and outcome following conservative treatment vs. ventral and dorsal surgery. BMC Geriatr 2023; 23:748. [PMID: 37968595 PMCID: PMC10652439 DOI: 10.1186/s12877-023-04472-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 11/09/2023] [Indexed: 11/17/2023] Open
Abstract
BACKGROUND Different treatment options are discussed for geriatric odontoid fracture. The aim of this study was to compare the treatment options for geriatric odontoid fractures. METHODS Included were patients with the following criteria: age ≥ 65 years, identification of seniors at risk (ISAR score ≥ 2), and odontoid fracture type A/B according to Eysel and Roosen. Three groups were compared: conservative treatment, surgical therapy with ventral screw osteosynthesis or dorsal instrumentation. At a follow-up examination, the range of motion and the trabecular bone fracture healing rate were evaluated. Furthermore, demographic patient data, neurological status, length of stay at the hospital and at the intensive care unit (ICU) as well as the duration of surgery and occurring complications were analyzed. RESULTS A total of 72 patients were included and 43 patients could be re-examined (range: 2.7 ± 2.1 months). Patients with dorsal instrumentation had a better rotation. Other directions of motion were not significantly different. The trabecular bone fracture healing rate was 78.6%. The patients with dorsal instrumentation were hospitalized significantly longer; however, their duration at the ICU was shortest. There was no significant difference in complications. CONCLUSION Geriatric patients with odontoid fracture require individual treatment planning. Dorsal instrumentation may offer some advantages.
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Affiliation(s)
- Matthias K Jung
- Department of Trauma and Orthopaedic Surgery, BG Klinik Ludwigshafen, Ludwigshafen, Germany.
| | - Lukas Hörnig
- Department of Trauma and Orthopaedic Surgery, BG Klinik Ludwigshafen, Ludwigshafen, Germany
| | - Philipp Raisch
- Department of Trauma and Orthopaedic Surgery, BG Klinik Ludwigshafen, Ludwigshafen, Germany
| | - Paul A Grützner
- Department of Trauma and Orthopaedic Surgery, BG Klinik Ludwigshafen, Ludwigshafen, Germany
| | - Michael Kreinest
- Department of Trauma and Orthopaedic Surgery, BG Klinik Ludwigshafen, Ludwigshafen, Germany
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Sowa D, Guzik G, Daniel P, Bronisz M, Merkiel D. Outcomes of Odontoid Process Fracture Surgery. Ortop Traumatol Rehabil 2023; 25:249-257. [PMID: 38088099 DOI: 10.5604/01.3001.0053.9673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
BACKGROUND Odontoid fractures are found in two age groups. In younger patients, they occur following traffic accidents, falls from a height and during sports. In older patients with poor bone quality, they are usually caused by falls from one's own height. Most fractures are stable and do not require surgical treatment. Unstable, severely displaced fractures with neurological deficits require surgical treatment. The aim of the study was to evaluate the surgical and functional outcomes of treatment of odontoid fractures with a cannulated screw. MATERIALS AND METHODS The study enrolled 20 patients that underwent surgery in the years 2020-2022. The patients were divided into two groups: below 60 (group A) and over 60 years of age (group B). Patients were assessed at one day pre-op, one day post-op, 6 weeks following surgery and 3 months following surgery. Imaging studies were performed to assess the angulation and degree of displacement of bone fragments. After the fracture was surgically fixed with a cannulated screw, bone union and the stability of fracture fixation were assessed. Preoperative and postoperative pain intensity as per a VAS, functional status assessed with the NDI questionnaire, quality of life (EQ-VAS) and neurological status (ASIA scale) were compared. RESULTS Good functional and surgical results were obtained in both groups of patients. Performance and quality of life improved, while pain intensity decreased in all patients. In 3 patients with post-traumatic paresis, the dysfunctions gradually subsided. No general medical or perioperative complications were observed. Bone union of the fracture was achieved in 40% of patients in group B and in 80% in group A. Achieving union did not determine the functional status of patients. On functional radiographs, all places of fixation were stable. CONCLUSIONS 1. Odontoid fracture fixation with a single cannulated screw is a safe method of treatment. It provided a high union rate and good stability of the fracture. 2. Fracture non-union was noted more often in the group of older patients, but it did not negatively impact quality of life and performance.
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Affiliation(s)
- Dariusz Sowa
- Oddział Urazowo Ortopedyczny Szpital Powiatowy w Stalowej Woli, Polska / Department of Orthopaedics and Traumatology, District Hospital in Stalowa Wola, Poland
| | - Grzegorz Guzik
- Odział Ortopedii Onkologicznej Szpitala Specjalistycznego w Brzozowie - Podkarpacki Ośrodek Onkologiczny, Rzeszów, Polska / Orthopaedic Oncology Department, Subcarpathian Oncology Centre in Brzozów, Rzeszów University of Technology, Rzeszów, Poland
| | - Pyrka Daniel
- Oddział Urazowo Ortopedyczny Szpital Powiatowy w Stalowej Woli, Polska / Department of Orthopaedics and Traumatology, District Hospital in Stalowa Wola, Poland
| | - Michał Bronisz
- Oddział Urazowo Ortopedyczny Szpital Powiatowy w Stalowej Woli, Polska / Department of Orthopaedics and Traumatology, District Hospital in Stalowa Wola, Poland
| | - Dawid Merkiel
- Oddział Urazowo Ortopedyczny Szpital Powiatowy w Stalowej Woli, Polska / Department of Orthopaedics and Traumatology, District Hospital in Stalowa Wola, Poland
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Honda A, Iizuka Y, Michihata N, Morita K, Mieda T, Takasawa E, Ishiwata S, Kakuta Y, Tomomatsu Y, Ito S, Inomata K, Matsui H, Fushimi K, Yasunaga H, Chikuda H. Risk factors for early mortality in elderly patients with unstable isolated C2 odontoid fracture treated with halo-vest or surgery. Sci Rep 2023; 13:17962. [PMID: 37864100 PMCID: PMC10589273 DOI: 10.1038/s41598-023-45180-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Accepted: 10/17/2023] [Indexed: 10/22/2023] Open
Abstract
The aim of this study was to compare in-hospital mortality of three procedures -halo-vest immobilization, anterior spinal fixation (ASF), and posterior spinal fixation (PSF)- in the treatment of elderly patients with isolated C2 odontoid fracture. We extracted data for elderly patients who were admitted with C2 odontoid fracture and treated with at least one of the three procedures (halo-vest immobilization, ASF, or PSF) during hospitalization. We conducted a generalized propensity score-based matching weight analysis to compare in-hospital mortality among the three procedures. We further investigated independent risk factors for in-hospital death. The study involved 891 patients (halo-vest, n = 463; ASF, n = 74; and PSF, n = 354) with a mean age of 78 years. In-hospital death occurred in 45 (5.1%) patients. Treatment type was not significantly associated with in-hospital mortality. Male sex (odds ratio 2.98; 95% confidence interval 1.32-6.73; p = 0.009) and a Charlson comorbidity index of ≥ 3 (odds ratio 9.18; 95% confidence interval 3.25-25.92; p < 0.001) were independent risk factors for in-hospital mortality. In conclusion, treatment type was not significantly associated with in-hospital mortality in elderly patients with isolated C2 odontoid fracture. Halo-vest immobilization can help to avoid adverse events in patients with C2 odontoid fracture who are considered less suitable for surgical treatment.
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Affiliation(s)
- Akira Honda
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, 3-39-22, Showa, Maebashi, Gunma, 371-8511, Japan.
- Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
| | - Yoichi Iizuka
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, 3-39-22, Showa, Maebashi, Gunma, 371-8511, Japan
| | - Nobuaki Michihata
- Cancer Prevention Center, Chiba Cancer Center Research Institute, 666-2, Nitona, Chuo-ku, Chiba, 260-8717, Japan
| | - Kojiro Morita
- Global Nursing Research Center, Graduate School of Medicine, University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Tokue Mieda
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, 3-39-22, Showa, Maebashi, Gunma, 371-8511, Japan
| | - Eiji Takasawa
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, 3-39-22, Showa, Maebashi, Gunma, 371-8511, Japan
| | - Sho Ishiwata
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, 3-39-22, Showa, Maebashi, Gunma, 371-8511, Japan
| | - Yohei Kakuta
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, 3-39-22, Showa, Maebashi, Gunma, 371-8511, Japan
| | - Yusuke Tomomatsu
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, 3-39-22, Showa, Maebashi, Gunma, 371-8511, Japan
| | - Shunsuke Ito
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, 3-39-22, Showa, Maebashi, Gunma, 371-8511, Japan
| | - Kazuhiro Inomata
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, 3-39-22, Showa, Maebashi, Gunma, 371-8511, Japan
| | - Hiroki Matsui
- Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Kiyohide Fushimi
- Department of Health Policy and Informatics, Tokyo Medical and Dental University Graduate School of Medicine, Tokyo, 45-5-1 Yushima, Bunkyo-ku, Tokyo, 113-8510, Japan
| | - Hideo Yasunaga
- Department of Clinical Epidemiology and Health Economics, School of Public Health, The University of Tokyo, 7-3-1, Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Hirotaka Chikuda
- Department of Orthopaedic Surgery, Gunma University Graduate School of Medicine, 3-39-22, Showa, Maebashi, Gunma, 371-8511, Japan
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Nishii T, Nishimura Y, Nagashima Y, Tanei T, Hara M, Takayasu M, Kanemura T, Saito R. Comparative Study of Surgical Outcomes of Occipitocervical and Atlantoaxial Fusion for Retro-Odontoid Pseudotumor. World Neurosurg 2023; 178:e230-e238. [PMID: 37479027 DOI: 10.1016/j.wneu.2023.07.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 07/09/2023] [Accepted: 07/10/2023] [Indexed: 07/23/2023]
Abstract
OBJECTIVE To compare the surgical and radiographic outcomes of occipitocervical fusion (OCF) with those of atlantoaxial fusion (AAF) in patients with cervical myelopathy caused by retroodontoid pseudotumors (ROPs). METHODS This retrospective, comparative study included 26 patients; 12 underwent occipitocervical fusion (OCF) (group O) and 14 retroodontoid pseudotumor (AAF) (group A) with a minimum 2-year follow-up. Neurologic outcomes were evaluated using the Japanese Orthopedic Association (JOA) score. Radiologic assessment included the maximum anteroposterior (AP) diameter of the anteroposterior-retroodontoid pseudotumor (AP-ROP), C2-7 angle, O-C2 angle, C1-2 angle, atlantodental interval (ADI), range of motion (ROM) of the ADI, C2-C7 sagittal vertical axis (C2-7 SVA), and T1 slope. Global spinal alignments (pelvic incidence [PI] minus lumbar lordosis [LL] [PI-LL], pelvic tilt, sacral slope, and C7 sagittal vertical axis) were also compared between the groups. RESULTS Both groups had equally good clinical outcomes with equal complication rates. Three patients had a three-level fusion, 5 cases had a four-level fusion, and 4 cases had more than five-level fusion in group O. All cases had a single-level fusion in group A. Surgical time was significantly shorter in group A. AP-ROP was significantly downsized postoperatively in both groups and was more prominent in group O. C2-7 SVA was significantly increased and C2-7A ROM was significantly reduced in group O at the final follow-up. The PI-LL showed a significant increase in group O at the final follow-up. CONCLUSIONS Although OCF and AAF were similarly effective for cervical myelopathy with ROP, AAF was less invasive, and spinal alignment was better maintained postoperatively in AAF than OCF.
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Affiliation(s)
- Tomoya Nishii
- Department of Neurosurgery, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Yusuke Nishimura
- Department of Neurosurgery, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan.
| | - Yoshitaka Nagashima
- Department of Neurosurgery, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Takafumi Tanei
- Department of Neurosurgery, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Masahito Hara
- Department of Neurosurgery, Aichi Medical University Graduate School of Medicine, Nagakute, Aichi, Japan
| | - Masakazu Takayasu
- Department of Neurosurgery, Inazawa Municipal Hospital, Inazawa, Aichi, Japan
| | | | - Ryuta Saito
- Department of Neurosurgery, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
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Kumar C, Kaye J, Phillips K, Forbes JA. Case report of bilateral middle ear effusion requiring myringotomy and tube placement following inferior U-shaped nasopharyngeal flap elevation for endonasal odontoidectomy: investigation of causality. Acta Neurochir (Wien) 2023; 165:2979-2983. [PMID: 37468660 DOI: 10.1007/s00701-023-05708-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Accepted: 06/24/2023] [Indexed: 07/21/2023]
Abstract
We describe a patient with symptomatic os odontoideum and a previous history of C1-2 wiring who underwent successful treatment with a staged endonasal odontoidectomy and C1-2 revision of instrumentation. Access to the odontoid process was gained through the endonasal corridor using an inverted U-shaped nasopharyngeal flap (IUNF). Post-operatively, the patient experienced resolution of her presenting neurologic symptoms but developed conductive hearing loss secondary to bilateral middle ear effusion, requiring bilateral myringotomy and tube placement 3 months post-operatively. We hypothesize this dysfunction may have resulted from surgical edema, packing buttressing the IUNF, or some combination thereof. In this manuscript, we review the evolution of the nasopharyngeal exposure for odontoidectomy and whether an IUNF may predispose to this complication.
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Affiliation(s)
- Chitra Kumar
- University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Joel Kaye
- Department of Neurological Surgery, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Katie Phillips
- Department of Otolaryngology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Jonathan A Forbes
- Department of Neurological Surgery, University of Cincinnati College of Medicine, Cincinnati, OH, USA.
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Rodemerk J, Pierscianek M, Darkwah Oppong M, Pierscianek D, Dammann P, Gembruch O, Özkan N, Sure U, Wrede KH, Jabbarli R. Preoperative cervical traction with Gardner-Wells tongs: who profits most? J Neurosurg Sci 2023; 67:559-566. [PMID: 35147402 DOI: 10.23736/s0390-5616.21.05501-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Preoperative traction with the Gardner-Wells tongs (PTGWT) is a valuable option for cervical spine injuries with malalignment. The aim of this study was to analyze the factors related to the treatment success of PTGWT. METHODS All consecutive cases with PTGWT due to cervical spine injury with malalignment treated between 01/2010 and 09/2020 were included. Patients' records were reviewed for demographic and clinical characteristics. Treatment success was evaluated upon the angle correction in the sagittal plane using the computed tomography scans before and after the treatment. RESULTS Of 20 patients in the final analysis (median age: 77.5 years; 12 females [60%]), 14 individuals were treated for the type-II odontoid fracture, and six cases presented with subluxation fractures between C3 and C7. After PTGWT and subsequent intraoperative reposition, there was an improvement of the median deviation angle from initial 32° to 5.5°. PTGWT resulted in a significant improvement of the median deviation angle for the odontoid (17°, P<0.0001), but not for the subluxation (4°, P=0.10) fractures. The time interval between trauma and PTGWT was associated with the treatment success of subluxation (P=0.051) but not of odontoid (P=0.87) fractures. Older individuals aged ≥51 years showed better reposition results with PTGWT (17° vs. 7.5°, P=0.02). There were no PTGWT-related complications in the cohort. CONCLUSIONS PTGWT is an effective and safe treatment for cervical spine injuries with malalignment. The patients with odontoid fractures might particularly profit from the PTGWT. Treatment delay seems more relevant for PTGWT success in subluxation than in odontoid fractures.
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Affiliation(s)
- Jan Rodemerk
- Department of Neurosurgery, University Hospital Essen, University of Duisburg-Essen, Essen, Germany -
| | - Markus Pierscianek
- Department of Neurosurgery, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Marvin Darkwah Oppong
- Department of Neurosurgery, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Daniela Pierscianek
- Department of Neurosurgery, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Philipp Dammann
- Department of Neurosurgery, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Oliver Gembruch
- Department of Neurosurgery, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Neriman Özkan
- Department of Neurosurgery, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Ulrich Sure
- Department of Neurosurgery, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Karsten H Wrede
- Department of Neurosurgery, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Ramazan Jabbarli
- Department of Neurosurgery, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
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21
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Huybregts JGJ, Barot KA, Recio C, Doucette J, Mekary RA, Vleggeert-Lankamp CLA. The optimal treatment of type II and III odontoid fractures in the elderly: an updated meta-analysis. Eur Spine J 2023; 32:3434-3449. [PMID: 37439865 DOI: 10.1007/s00586-023-07779-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 05/12/2023] [Indexed: 07/14/2023]
Abstract
PURPOSE Odontoid fractures are the most common cervical spine fractures in the elderly, with a controversial optimal treatment. The objective of this review was to compare the outcome of surgical and conservative treatments in elderly (≥ 65 years), by updating a systematic review published by the authors in 2013. METHODS A comprehensive search was conducted in seven databases. Clinical outcome was the primary outcome. Fracture union- and stability were secondary outcomes. Pooled point estimates and their respective 95% confidence intervals (CIs) were derived using the random-effects model. A random-effects multivariable meta-regression model was used to correct for baseline co-variates when sufficiently reported. RESULTS Forty-one studies met the inclusion criteria, of which forty were case series and one a cohort study. No clinical differences in outcomes including the Neck Disability Index (NDI, 700 patients), Visual Analogue Scale pain (VAS, 180 patients), and Smiley-Webster Scale (SWS, 231 patients) scores were identified between surgical and conservative treatments. However, fracture union was higher in surgically treated patients (pooled incidence 72.7%, 95% CI 66.1%, 78.5%, 31 studies, 988 patients) than in conservatively treated patients (40.2%, 95% CI 32.0%, 49.0%, 22 studies, 912 patients). This difference remained after correcting for age and fracture type. Fracture stability (41 studies, 1917 patients), although numerically favoring surgery, did not appear to differ between treatment groups. CONCLUSION While surgically treated patients showed higher union rates than conservatively treated patients, no clinically relevant differences were observed in NDI, VAS pain, and SWS scores and stability rates. These results need to be further confirmed in well-designed comparative studies with proper adjustment for confounding, such as age, fracture characteristics, and osteoporosis degree.
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Affiliation(s)
- Jeroen G J Huybregts
- Department of Neurosurgery, Leiden University Medical Center, University Neurosurgical Center Holland, PO Box 9600, 2300 RC, Leiden, The Netherlands.
- Department of Neurosurgery, Haaglanden Medical Center, University Neurosurgical Center Holland, The Hague, The Netherlands.
| | | | - Camila Recio
- Department of Neurosurgery, Computational Neuroscience Outcomes Center, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
| | | | - Rania A Mekary
- Department of Neurosurgery, Computational Neuroscience Outcomes Center, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, USA
- School of Pharmacy, MCPHS University, Boston, MA, USA
| | - Carmen L A Vleggeert-Lankamp
- Department of Neurosurgery, Leiden University Medical Center, University Neurosurgical Center Holland, PO Box 9600, 2300 RC, Leiden, The Netherlands
- Department of Neurosurgery, Spaarne Hospital Haarlem/Hoofddorp, Hoofddorp, The Netherlands
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22
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Tosi U, Giantini-Larsen A, Mathios D, Kacker A, Anand VK, Ferdowssian K, Baaj A, Härtl R, Rapoport BI, Greenfield JP, Schwartz TH. Endoscopic odontoidectomy for brainstem compression in association with posterior fossa decompression and occipitocervical fusion. J Neurosurg 2023; 139:1152-1159. [PMID: 36933256 DOI: 10.3171/2023.1.jns222404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 01/25/2023] [Indexed: 03/19/2023]
Abstract
OBJECTIVE Endonasal endoscopic odontoidectomy (EEO) is an alternative to transoral surgery for symptomatic ventral compression of the anterior cervicomedullary junction (CMJ), allowing for earlier extubation and feeding. Because the procedure destabilizes the C1-2 ligamentous complex, posterior cervical fusion is often performed concomitantly. The authors' institutional experience was reviewed to describe the indications, outcomes, and complications in a large series of EEO surgical procedures in which EEO was combined with posterior decompression and fusion. METHODS A consecutive, prospective series of patients who underwent EEO between 2011 and 2021 was studied. Demographic and outcome metrics, radiographic parameters, extent of ventral compression, extent of dens removal, and increase in CSF space ventral to the brainstem were measured on the preoperative and postoperative scans (first and most recent scans). RESULTS Forty-two patients (26.2% pediatric) underwent EEO: 78.6% had basilar invagination, and 76.2% had Chiari type I malformation. The mean ± SD age was 33.6 ± 3.0 years, with a mean follow-up of 32.3 ± 4.0 months. The majority of patients (95.2%) underwent posterior decompression and fusion immediately before EEO. Two patients underwent prior fusion. There were 7 intraoperative CSF leaks but no postoperative CSF leaks. The inferior limit of decompression fell between the nasoaxial and rhinopalatine lines. The mean ± SD vertical height of dens resection was 11.98 ± 0.45 mm, equivalent to a mean ± SD resection of 74.18% ± 2.56%. The mean increase in ventral CSF space immediately postoperatively was 1.68 ± 0.17 mm (p < 0.0001), which increased to 2.75 ± 0.23 mm (p < 0.0001) at the most recent follow-up (p < 0.0001). The median (range) length of stay was 5 (2-33) days. The median time to extubation was 0 (0-3) days. The median time to oral feeding (defined as, at minimum, toleration of a clear liquid diet) was 1 (0-3) day. Symptoms improved in 97.6% of patients. Complications were rare and mostly associated with the cervical fusion portion of the combined surgical procedures. CONCLUSIONS EEO is safe and effective for achieving anterior CMJ decompression and is often accompanied by posterior cervical stabilization. Ventral decompression improves over time. EEO should be considered for patients with appropriate indications.
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Affiliation(s)
| | | | | | - Ashutosh Kacker
- 2Otorhinolaryngology, Weill Cornell Medicine, New York, New York
| | - Vijay K Anand
- 2Otorhinolaryngology, Weill Cornell Medicine, New York, New York
| | | | - Ali Baaj
- Departments of1Neurological Surgery and
| | | | | | | | - Theodore H Schwartz
- Departments of1Neurological Surgery and
- 2Otorhinolaryngology, Weill Cornell Medicine, New York, New York
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23
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Finkel RA, Narendran N, Nilssen PK, Skaggs DL, Illingworth KD. Vertebral Artery Dissection in the Setting of Unstable Os Odontoideum: A Case Report. JBJS Case Connect 2023; 13:01709767-202312000-00054. [PMID: 38134303 DOI: 10.2106/jbjs.cc.23.00466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2023]
Abstract
CASE A healthy 5-year-old boy presented with a gradual onset of headaches and acute global right-sided weakness over 10 days. The work-up revealed unstable os odontoideum leading to multiple posterior circulation infarcts with vertebral artery dissection. He underwent antiplatelet therapy, cervical collar immobilization, and delayed occiput to C2 posterior spinal fusion and instrumentation with iliac crest autograft. At 2-year follow-up, the patient had a solid fusion mass, appropriate cervical alignment, and was without neurologic sequelae. CONCLUSION This case adds to a sparse body of literature in the management of vertebral artery dissection with vertebrobasilar insufficiency secondary to unstable os odontoideum.
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Affiliation(s)
- Ryan A Finkel
- Department of Orthopaedic Surgery, Cedars-Sinai Medical Center, Los Angeles, California
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24
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Cloney MB, Thirunavu V, Roumeliotis A, Texakalidis P, Swong K, El Tecle N, Dahdaleh NS. Traumatic Dens Fracture Patients Comprise Distinct Subpopulations Distinguished by Differences in Age, Sex, Injury Mechanism and Severity, and Outcome. World Neurosurg 2023; 178:e128-e134. [PMID: 37423338 DOI: 10.1016/j.wneu.2023.07.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 06/30/2023] [Accepted: 07/01/2023] [Indexed: 07/11/2023]
Abstract
BACKGROUND Dens fractures are an increasingly common injury, yet their epidemiology and its implications remain underexamined. METHODS We retrospectively analyzed all traumatic dens fracture patients managed at our institution over a 10-year period, examining demographic, clinical, and outcomes data. Patient subsets were compared across these parameters. RESULTS Among 303 traumatic dens fracture patients, we observed a bimodal age distribution with a strong goodness of fit centered at age 22.3 ± 5.7 (R = 0.8781) and at 77.7 ± 13.9 (R = 0.9686). A population pyramid demonstrated a bimodal distribution among male patients, but not female patients, which was confirmed with a strong goodness of fit for male patient subpopulations age <35 (R = 0.9791) and age ≥35 (R = 0.8843), but a weaker fit for a second female subpopulation age <35. Both age groups were equally likely to undergo surgery. Patients younger than age 35 were more likely to be male (82.4% vs. 46.9%, odds ratio [OR] = 5.29 [1.54, 17.57], P = 0.0052), have motor vehicle collision as their mechanism of injury (64.7% vs. 14.1%, OR = 11.18 [3.77, 31.77], P < 0.0001), and to have a severe trauma injury severity score (17.6% vs. 2.9%, OR = 7.23 [1.88, 28.88], P = 0.0198). Nevertheless, patients age <35 were less likely to have fracture nonunion at follow (18.2% vs. 53.7%, OR = 0.19 [0.041, 0.76], P = 0.0288). CONCLUSIONS The dens fracture patient population comprises 2 subpopulations, distinguished by differences in age, sex, injury mechanism and severity, and outcome, with male dens fracture patients demonstrating a bimodal age distribution. Young, male patients were more likely to have high-energy injury mechanisms leading to severe trauma, yet were less likely to have fracture nonunion at follow-up.
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Affiliation(s)
- Michael B Cloney
- Department of Neurological Surgery, Feinberg School of Medicine of Northwestern University, Chicago, Illinois, USA.
| | - Vineeth Thirunavu
- Department of Neurological Surgery, Feinberg School of Medicine of Northwestern University, Chicago, Illinois, USA
| | - Anastasios Roumeliotis
- Department of Neurological Surgery, Feinberg School of Medicine of Northwestern University, Chicago, Illinois, USA
| | - Pavlos Texakalidis
- Department of Neurological Surgery, Feinberg School of Medicine of Northwestern University, Chicago, Illinois, USA
| | - Kevin Swong
- Department of Neurological Surgery, Feinberg School of Medicine of Northwestern University, Chicago, Illinois, USA
| | - Najib El Tecle
- Department of Neurological Surgery, Feinberg School of Medicine of Northwestern University, Chicago, Illinois, USA
| | - Nader S Dahdaleh
- Department of Neurological Surgery, Feinberg School of Medicine of Northwestern University, Chicago, Illinois, USA
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25
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Cloney M, Thirunavu V, Roumeliotis A, Azad H, Shlobin NA, Swong K, El Tecle N, Dahdaleh NS. Surgery Decreases Nonunion, Myelopathy, and Mortality for Patients With Traumatic Odontoid Fractures: A Propensity Score Matched Analysis. Neurosurgery 2023; 93:546-554. [PMID: 37306435 PMCID: PMC10400064 DOI: 10.1227/neu.0000000000002557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 04/24/2023] [Indexed: 06/13/2023] Open
Abstract
BACKGROUND Existing literature suggests that surgical intervention for odontoid fractures is beneficial but often does not control for known confounding factors. OBJECTIVE To examine the effect of surgical fixation on myelopathy, fracture nonunion, and mortality after traumatic odontoid fractures. METHODS We analyzed all traumatic odontoid fractures managed at our institution between 2010 and 2020. Ordinal multivariable logistic regression was used to identify factors associated with myelopathy severity at follow-up. Propensity score analysis was used to test the treatment effect of surgery on nonunion and mortality. RESULTS Three hundred and three patients with traumatic odontoid fracture were identified, of whom 21.6% underwent surgical stabilization. After propensity score matching, populations were well balanced across all analyses (Rubin's B < 25.0, 0.5 < Rubin's R < 2.0). Controlling for age and fracture angulation, type, comminution, and displacement, the overall rate of nonunion was lower in the surgical group (39.7% vs 57.3%, average treatment effect [ATE] = -0.153 [-0.279, -0.028], P = .017). Controlling for age, sex, Nurick score, Charlson Comorbidity Index, Injury Severity Score, and selection for intensive care unit admission, the mortality rate was lower for the surgical group at 30 days (1.7% vs 13.8%, ATE = -0.101 [-0.172, -0.030], P = .005) and at 1 year was 7.0% vs 23.7%, ATE = -0.099 [-0.181, -0.017], P = .018. Cox proportional hazards analysis also demonstrated a mortality benefit for surgery (hazard ratio = 0.587 [0.426, 0.799], P = .0009). Patients who underwent surgery were less likely to have worse myelopathy scores at follow-up (odds ratio = 0.48 [0.25, 0.93], P = .029). CONCLUSION Surgical stabilization is associated with better myelopathy scores at follow-up and causes lower rates of fracture nonunion, 30-day mortality, and 1-year mortality.
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Affiliation(s)
- Michael Cloney
- Department of Neurological Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Vineeth Thirunavu
- Department of Neurological Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Anastasios Roumeliotis
- Department of Neurological Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Hooman Azad
- Department of Neurological Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Nathan A. Shlobin
- Department of Neurological Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Kevin Swong
- Department of Neurological Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Najib El Tecle
- Department of Neurological Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
| | - Nader S. Dahdaleh
- Department of Neurological Surgery, Northwestern University Feinberg School of Medicine, Chicago, Illinois, USA
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26
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Huneidi M, Farah K, Scavarda D, Meyer M, Fuentes S. Letter to the editor: C1-C2 fixation by Harms procedure to treat symptomatic os odontoideum in a 2-year-old child. Neurochirurgie 2023; 69:101474. [PMID: 37482185 DOI: 10.1016/j.neuchi.2023.101474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 07/01/2023] [Accepted: 07/06/2023] [Indexed: 07/25/2023]
Affiliation(s)
- M Huneidi
- Unité de chirurgie rachidienne, CHU Tripode Pellegrin, CHU de Bordeaux, Bordeaux, France.
| | - K Farah
- Service de neurochirurgie et de chirurgie rachidienne, assistance publique hôpitaux de Marseille, Marseille, France
| | - D Scavarda
- Service de neurochirurgie infantile, assistance publique hôpitaux de Marseille, Marseille, France
| | - M Meyer
- Service de neurochirurgie et de chirurgie rachidienne, assistance publique hôpitaux de Marseille, Marseille, France
| | - S Fuentes
- Service de neurochirurgie et de chirurgie rachidienne, assistance publique hôpitaux de Marseille, Marseille, France
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27
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Pandey A, Giantini-Larsen A, Greenfield JP. Cervical Instability and Quadriparesis Requiring Stabilization in Pediatric Patient Caused by a Mutation in COL2A1. World Neurosurg 2023; 176:159-160. [PMID: 37141942 DOI: 10.1016/j.wneu.2023.04.111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Revised: 04/24/2023] [Accepted: 04/25/2023] [Indexed: 05/06/2023]
Abstract
A 3-year-old male with no past medical history presented with flaccid plegia of his upper extremities and significant weakness in his lower extremities after wrestling with his brother. Cervical spine magnetic resonance imaging was consistent with cord edema and intraparenchymal hemorrhage at C1-C2. A nonossified tissue mass at the expected location of the upper dens created narrowing of the canal at the C1-2 level and mass effect on the cord. Head computed tomography showed periventricular leukomalacia. Initial findings favored dysplasia of the odontoid with associated soft tissue mass/pannus caused by a possible underlying genetic or metabolic bone dyscrasia. The patient underwent suboccipital craniotomy/C1 laminectomy and occiput to C4 fusion, for decompression and stabilization. Genetic testing showed a COL2A1 collagen disorder, with the child harboring a de novo mutation for c.3455 G>T (p.G1152V). The patient was discharged to inpatient acute rehabilitation, with gradual improvement in strength in all 4 extremities.
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Affiliation(s)
- Abhinav Pandey
- Department of Neurological Surgery, Weill Cornell Medicine/New York Presbyterian Hospital, New York, New York, USA
| | - Alexandra Giantini-Larsen
- Department of Neurological Surgery, Weill Cornell Medicine/New York Presbyterian Hospital, New York, New York, USA
| | - Jeffrey P Greenfield
- Department of Neurological Surgery, Weill Cornell Medicine/New York Presbyterian Hospital, New York, New York, USA.
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28
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Dantas FLR, Dantas F, Cariri GA, Caires ACV, Reis MTDSE, Botelho RV. Type II Odontoid Fractures: Is the Anterior Screw a Good Solution for all Patients? A Case Series of 60 Consecutive Patients. World Neurosurg 2023; 176:e535-e542. [PMID: 37268191 DOI: 10.1016/j.wneu.2023.05.096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Accepted: 05/23/2023] [Indexed: 06/04/2023]
Abstract
OBJECTIVE Type II odontoid fracture is the most common fracture type, and its treatment remains challenging. The objective of this study was to evaluate the results of anterior screw fixation for type II odontoid fractures in patients aged over and below 60 years. METHODS A retrospective analysis of consecutive patients diagnosed with type II odontoid fractures who were surgically treated using the anterior approach by a single surgeon was conducted. Demographic characteristics, including age, sex, type of fracture, time from trauma to surgery, length of stay (LoS), fusion rate, complications, and reoperation, were evaluated. Surgical outcomes were compared between patients over and below 60 years of age. RESULTS Sixty consecutive patients underwent odontoid anterior fixation during the analysis period. The mean age of patients was 49.58 ± 23.22 years. Twenty-three (38.3%) patients were aged over 60 years, and the minimum follow-up period was two years. Of the patients, 93.3% developed bone fusion, which was observed in 86.9% of patients over 60 years. Complications related to hardware failure occurred in six (10%) patients. Transient dysphagia was observed in 10% of the cases. Three (5%) patients required reoperation. Patients over 60 years had a significantly increased risk of dysphagia compared with those below 60 years (P = 0.0248). There was no significant difference between the groups regarding nonfusion rate, reoperation rate, or LoS. CONCLUSIONS Anterior fixation of the odontoid showed high fusion rates with a low rate of complications. It is a technique to be considered for treating type II odontoid fractures in selected cases.
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Affiliation(s)
- Fernando Luiz Rolemberg Dantas
- Department of Neurosurgery, Biocor Instituto/Rede D'Or, Minas Gerais, Brazil; Graduation in Health Sciences, Faculdade Ciências Médicas de Minas Gerais, Minas Gerais, Brazil.
| | - François Dantas
- Department of Neurosurgery, Biocor Instituto/Rede D'Or, Minas Gerais, Brazil; Graduation in Health Sciences, IAMSPE, São Paulo, Brazil
| | - Gustavo Agra Cariri
- Department of Neurosurgery, Biocor Instituto/Rede D'Or, Minas Gerais, Brazil
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29
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Goel A. Letter to the Editor. Endoscopic odontoidectomy. J Neurosurg 2023; 139:1203-1204. [PMID: 37209068 DOI: 10.3171/2023.4.jns23642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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30
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Merali Z, Zhang PF, Jaffe RH, Jaja BNR, Harrington EM, Malhotra AK, Smith CW, He Y, Balas M, Jack AS, Fehlings MG, Wilson JR, Witiw CD. Multicenter retrospective cohort study of the association between surgery for odontoid fractures in the elderly and in-hospital outcomes. Sci Rep 2023; 13:6276. [PMID: 37072405 PMCID: PMC10113203 DOI: 10.1038/s41598-023-33158-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Accepted: 04/07/2023] [Indexed: 05/03/2023] Open
Abstract
Odontoid fractures are increasingly prevalent in older adults and associated with high morbidity and mortality. Optimal management remains controversial. Our study aims to investigate the association between surgical management of odontoid fractures and in-hospital mortality in a multi-center geriatric cohort. We identified patients 65 years or older with C2 odontoid fractures from the Trauma Quality Improvement Program database. The primary study outcome was in-hospital mortality. Secondary outcomes were in-hospital complications and hospital length of stay. Generalized estimating equation models were used to compare outcomes between operative and non-operative cohorts. Among the 13,218 eligible patients, 1100 (8.3%) were treated surgically. The risk of in-hospital mortality did not differ between surgical and non-surgical groups, after patient and hospital-level adjustment (OR: 0.94, 95%CI: 0.55-1.60). The risks of major complications and immobility-related complications were higher in the operative cohort (adjusted OR: 2.12, 95%CI: 1.53-2.94; and OR: 2.24, 95%CI: 1.38-3.63, respectively). Patients undergoing surgery had extended in-hospital length of stay compared to the non-operative group (9 days, IQR: 6-12 days vs. 4 days, IQR: 3-7 days). These findings were supported by secondary analyses that considered between-center differences in rates of surgery. Among geriatric patients with odontoid fractures surgical management was associated with similar in-hospital mortality, but higher in-hospital complication rates compared to non-operative management. Surgical management of geriatric patients with odontoid fractures requires careful patient selection and consideration of pre-existing comorbidities.
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Affiliation(s)
- Zamir Merali
- Department of Surgery, Division of Neurosurgery, University of Toronto, Toronto, M5T1P5, Canada
- Department of Surgery, Division of Neurosurgery, St. Michael's Hospital, Toronto, M5B1W8, Canada
| | - Peng F Zhang
- Department of Surgery, Division of Neurosurgery, St. Michael's Hospital, Toronto, M5B1W8, Canada
| | - Rachael H Jaffe
- Department of Surgery, Division of Neurosurgery, St. Michael's Hospital, Toronto, M5B1W8, Canada
- Institute of Health Policy Management and Evaluation, University of Toronto, Toronto, M5T1P8, Canada
| | - Blessing N R Jaja
- St. Michael's Hospital, Li Ka Shing Knowledge Institute, Toronto, M5B1T8, Canada
| | - Erin M Harrington
- Department of Surgery, Division of Neurosurgery, St. Michael's Hospital, Toronto, M5B1W8, Canada
| | - Armaan K Malhotra
- Department of Surgery, Division of Neurosurgery, University of Toronto, Toronto, M5T1P5, Canada
- Department of Surgery, Division of Neurosurgery, St. Michael's Hospital, Toronto, M5B1W8, Canada
- Institute of Health Policy Management and Evaluation, University of Toronto, Toronto, M5T1P8, Canada
| | - Christopher W Smith
- Department of Surgery, Division of Neurosurgery, St. Michael's Hospital, Toronto, M5B1W8, Canada
| | - Yingshi He
- Department of Surgery, Division of Neurosurgery, St. Michael's Hospital, Toronto, M5B1W8, Canada
| | - Michael Balas
- Department of Surgery, Division of Neurosurgery, St. Michael's Hospital, Toronto, M5B1W8, Canada
| | - Andrew S Jack
- Division of Neurosurgery, University of Alberta, Edmonton, T6G1Z1, Canada
| | - Michael G Fehlings
- Department of Surgery, Division of Neurosurgery, University of Toronto, Toronto, M5T1P5, Canada
- Department of Surgery, Division of Neurosurgery, Toronto Western Hospital, Toronto, M5T2S8, Canada
| | - Jefferson R Wilson
- Department of Surgery, Division of Neurosurgery, University of Toronto, Toronto, M5T1P5, Canada
- Department of Surgery, Division of Neurosurgery, St. Michael's Hospital, Toronto, M5B1W8, Canada
- Institute of Health Policy Management and Evaluation, University of Toronto, Toronto, M5T1P8, Canada
| | - Christopher D Witiw
- Department of Surgery, Division of Neurosurgery, University of Toronto, Toronto, M5T1P5, Canada.
- Department of Surgery, Division of Neurosurgery, St. Michael's Hospital, Toronto, M5B1W8, Canada.
- Institute of Health Policy Management and Evaluation, University of Toronto, Toronto, M5T1P8, Canada.
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31
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Jamshidi AM, Govindarajan V, Levi AD. Transdural Approach for Resection of Craniovertebral Junction Cysts: Case Series. Neurosurgery 2023; 92:615-622. [PMID: 36512818 PMCID: PMC10158906 DOI: 10.1227/neu.0000000000002255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2022] [Accepted: 09/20/2022] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Craniovertebral junction (CVJ) cysts, including retro-odontoid pseudotumors, are challenging pathologies to treat and manage effectively. Surgical intervention is indicated when these lesions result in progressive myelopathy, intractable pain, or instability. OBJECTIVE To present a case series of older patients who underwent successful resection retro-odontoid lesions using transdural approach. METHODS A single-center, retrospective observation study of older patients who underwent transdural resection of CVJ cysts at a single institution was performed. Summary demographic information, clinical presentation, perioperative and intraoperative imaging, and Nurick scores were collected and analyzed. RESULTS Eight patients were included (mean age [±SD] 75.88 ± 9.09 years). All patients presented with retro-odontoid lesions resulting in severe cervical stenosis, cord compression, and myelopathy. The mean duration of surgery was 226 ± 83.7 minutes. The average intraoperative blood loss was 181.2 cc. The average hospital stay was 4.5 days ± 1.3 (range, 3-7 days). The average follow-up time was 12.5 ± 9.5 months. No intraoperative complications were encountered. The Nurick classification score for myelopathy improved at the final postoperative examination (2.38 ± 1.06 vs 1 ± 1.07). Three patients demonstrated a pre-existing deformity prompting an instrumented fusion. Both computed tomography and MRI evidence of complete regression of retro-odontoid cyst were noted in all patients on the final follow-up. CONCLUSION Posterior cervical transdural approach for ventral lesions at the CVJ is a safe and effective means of treating older patients with progressive myelopathy. This technique provides immediate spinal cord decompression while limiting neurological complications commonly associated with open or endoscopic anterior transpharyngeal approaches.
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Affiliation(s)
- Aria M. Jamshidi
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA
| | - Vaidya Govindarajan
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA
| | - Alan D. Levi
- Department of Neurological Surgery, University of Miami, Miami, Florida, USA
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Wilson S, Menezes AH. MR documented craniocervical ligamentous injury at age 18 months: delayed formation of OS odontoideum. Complex management issues. Case-based review. Childs Nerv Syst 2023; 39:869-875. [PMID: 36828956 DOI: 10.1007/s00381-023-05892-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 02/20/2023] [Indexed: 02/26/2023]
Abstract
OBJECTIVE There are two separate theories regarding the genesis of os odontoideum: congenital and post-traumatic. Trauma documentation in the past has been the presence of a normal odontoid process at the time of initial childhood injury and subsequent development of the os odontoideum. True MR documentation of craniocervical injury in early childhood and subsequent os odontoideum formation has been very rare. METHODS An 18-month-old sustained craniocervical ligamentous injury documented on MRI with transient neurological deficit. Chiari I abnormality was also recorded. Subsequent serial imaging of craniocervical region showed the formation of os odontoideum and instability. He became symptomatic from the os odontoideum and the Chiari I abnormality. The patient underwent decompression and intradural procedure for Chiari I abnormality and occipitocervical fusion. Postoperative course was complicated by the failure of fusion and redo. He later required transoral ventral medullary decompression. He recovered. RESULTS This is an MR documented craniocervical ligamentous injury with sequential formation of os odontoideum with accompanying changes in the atlas. Despite a subsequent successful dorsal occipitocervical fusion, he became symptomatic requiring transoral decompression. CONCLUSIONS Os odontoideum here is recognized as a traumatic origin with the presence of congenital Chiari I abnormality as a separate entity. The changes of the anterior arch of C1 as well as the os formation were serially documented and give credence to blood supply changes in the os and atlas as a result of the trauma. The recognized treatment of dorsal occipitocervical fusion failed in this case requiring also a ventral decompression of the medulla.
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Affiliation(s)
- Saul Wilson
- Department of Neurosurgery, Division of Pediatric Neurosurgery, Stead Family Children's Hospital, University of Iowa Hospitals & Clinics, Iowa City, IA, USA
| | - Arnold H Menezes
- Department of Neurosurgery, University of Iowa Hospitals & Clinics, 200 Hawkins Drive, 1824 JPP, Iowa City, IA, 52242, USA.
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Barik S, Raj V, Kumar A, Kumar V. Letter to the editor concerning "endoscopic endonasal odontoidectomy: a long-term follow-up results for a cohort of 21 patients" by Penner F, De Marco R, Di Perna G, et al. (2022) Eur Spine J 31:2693-2703. Eur Spine J 2023; 32:743-744. [PMID: 36495339 DOI: 10.1007/s00586-022-07485-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 10/15/2022] [Accepted: 12/04/2022] [Indexed: 12/14/2022]
Affiliation(s)
- Sitanshu Barik
- All India Institute of Medical Sciences (AIIMS), Devipur, Deoghar, 814112, India
| | - Vikash Raj
- All India Institute of Medical Sciences (AIIMS), Devipur, Deoghar, 814112, India
| | - Aman Kumar
- All India Institute of Medical Sciences (AIIMS), Devipur, Deoghar, 814112, India
| | - Vishal Kumar
- All India Institute of Medical Sciences (AIIMS), Devipur, Deoghar, 814112, India.
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34
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Shkarubo AN, Chernov IV, Andreev DN, Konovalov NA, Sinelnikov ME. [Minimally invasive surgery for invaginated CII odontoid process]. Zh Vopr Neirokhir Im N N Burdenko 2023; 87:5-12. [PMID: 37325821 DOI: 10.17116/neiro2023870315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Odontoidectomy is indicated for anterior compression of the brainstem by invaginated odontoid process. This procedure can currently be performed via transoral microsurgical and transnasal endoscopic access. OBJECTIVE To analyze the results of endoscopic transnasal odontoidectomy. MATERIAL AND METHODS We assessed treatment outcomes in 10 patients with anterior compression of the brainstem by invaginated odontoid process. All patients underwent endoscopic transnasal odontoidectomy. RESULTS Brainstem decompression was achieved in all cases. CONCLUSION Currently, endoscopic transnasal approach is gradually replacing the transoral one in some patients requiring anterior odontoidectomy. Analysis of literature data reflects the development of this technique taking into account various features of surgical treatment including optimization of dimensions of surgical field, attempts to perform C1-sparing surgeries and analysis of sufficient size of trepanation. Nasopalatine and nasoclival lines are used to select optimal access. Nevertheless, the choice of access depends on equipment of the hospital and surgical experience in most cases.
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Affiliation(s)
| | - I V Chernov
- Burdenko Neurosurgical Center, Moscow, Russia
| | - D N Andreev
- Burdenko Neurosurgical Center, Moscow, Russia
| | | | - M E Sinelnikov
- Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
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Ferri S, Cacciola F, Zaccaria R, Ghetti I, Curcio A, Germanò AF. Neuronavigated Retropharyngeal Anterior Screw Fixation of the Odontoid for the Treatment of C2 Type II Fractures: Case Report. Acta Neurochir Suppl 2023; 135:279-282. [PMID: 38153482 DOI: 10.1007/978-3-031-36084-8_43] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/29/2023]
Abstract
Odontoid fractures, frequently observed in patients over the age of 70, often involve the base of the axis (Anderson-D'Alonzo type 2). For surgical treatment, posterior C1-C2 fixation is the traditional method, whose fusion rates range between 93 and 100%. However, morbidity and mortality rates are high. In addition, cervical motion, especially axial rotation, is postoperatively reduced. Nakanishi and Bohler introduced the anterior screw fixation approach for the surgical treatment of odontoid fracture type II. This procedure preserves the atlantoaxial complex motion, provides immediate stability and high fracture healing rates, and, most importantly, has a low incidence of complications with good fusion rates. The surgical strategy must take into account the patient's anatomy, the morphological characteristics of the fracture, the quality of the bone, and any concomitant injuries. In this chapter, we describe a C2 type II fracture treated via a neuronavigated anterior retropharyngeal approach.
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Affiliation(s)
- S Ferri
- Department of Biomedical and Dental Science and Morphofunctional Imaging, Unit of Neurosurgery, University of Messina, Messina, Italy
| | - F Cacciola
- Department of Biomedical and Dental Science and Morphofunctional Imaging, Unit of Neurosurgery, University of Messina, Messina, Italy
| | - R Zaccaria
- Department of Biomedical and Dental Science and Morphofunctional Imaging, Unit of Neurosurgery, University of Messina, Messina, Italy
| | - I Ghetti
- Department of Biomedical and Dental Science and Morphofunctional Imaging, Unit of Neurosurgery, University of Messina, Messina, Italy
| | - A Curcio
- Department of Biomedical and Dental Science and Morphofunctional Imaging, Unit of Neurosurgery, University of Messina, Messina, Italy
| | - Antonino Francesco Germanò
- Department of Biomedical and Dental Science and Morphofunctional Imaging, Unit of Neurosurgery, University of Messina, Messina, Italy.
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36
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Hirata H, Morimoto T, Tsukamoto M, Yoshihara T, Kobayashi T, Takashima S, Mawatari M. Letter to the Editor. Odontoid fractures using posterior C1-2 fixation without fusion. J Neurosurg Spine 2022; 38:294. [PMID: 36242569 DOI: 10.3171/2022.8.spine22872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Eun J, Oh Y. Traumatic lateral atlantoaxial dislocation combined with a type II odontoid fracture in a patient with ankylosing spondylitis: A case report. Medicine (Baltimore) 2022; 101:e30912. [PMID: 36221340 PMCID: PMC9542739 DOI: 10.1097/md.0000000000030912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
RATIONALE Traumatic lateral atlantoaxial dislocation (AAD) combined with an odontoid fracture is extremely rare. The standards applicable to management of the traumatic lateral AAD are still in flux due to the infrequency of this injury. PATIENT CONCERNS We present a unique case of traumatic lateral AAD combined with a type II odontoid fracture in a patient with ankylosing spondylitis (AS). DIAGNOSIS Spinal computed tomography showed ankylosis of the entire spine from the sacroiliac joint to the cervical spine. On the cervical X-ray the head was rotated to the right with anterior subluxation of the C1 and odontoid tip relative to C2. The coronal computed tomography (CT) scan also revealed left lateral dislocation of C1 on C2 with a horizontal translation of the odontoid tip. On the axial and sagittal CT scan, the left C1 lateral mass was displaced anteriorly and locked by C2 body. INTERVENTIONS We performed occipito-cervical fusion (OCF) after successful manual reduction under general anesthesia. OUTCOMES The patient's recovery from surgery was uneventful and without complication. At the 3 year follow-up the patient was asymptomatic and reportedly satisfied with the surgery. LESSONS Traumatic AAD with an odontoid fracture is an exceedingly uncommon cervical spine injury. A lateral subluxation with a type II odontoid fracture in a patient with AS is rarer still, so much so that this type of subluxation was not classifiable using any of the previously developed classification systems. In this patient with AS, posterior OCF with internal fixation was necessary to avoid hardware failure, particularly in light of the intensive stress caused by AS.
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Affiliation(s)
- Jongpil Eun
- Department of Neurosurgery, Research Institute of Clinical Medicine of Jeonbuk National University, Jeonbuk National University Medical School and Hospital, Jeonju, Korea
| | - Youngmin Oh
- Department of Neurosurgery, Research Institute of Clinical Medicine of Jeonbuk National University, Jeonbuk National University Medical School and Hospital, Jeonju, Korea
- * Correspondence: Youngmin Oh, Department of Neurosurgery, Jeonbuk National University Medical School/Hospital, Geonjiro 20, Deokjingu, Jeonju, 54907, South Korea (e-mail: )
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38
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Sawarkar DP, Singh PK, Agrawal D, Satyarthee GD, Gupta DK, Tandon V, Gurjar HK, Borkar S, Jagdevan A, Mishra S, Kedia S, Sharma R, Doddamani R, Verma S, Meena R, Kumar R, Chandra PS, Kale SS. O-Arm Assisted Anterior Odontoid Screw Fixation in Type II and Rostral Type III Odontoid Fractures: Single Center Surgical Series of 50 Patients. Neurol India 2022; 70:S135-S143. [PMID: 36412360 DOI: 10.4103/0028-3886.360924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
BACKGROUND Accuracy of screw placement is one of the important factors necessary for adequate union in odontoid fractures with malposition rates as high as 27.2% with standard techniques. OBJECTIVE To evaluate efficacy of intraoperative O-arm assistance in improving accuracy of anterior odontoid screw placement and clinco-radiological outcome in type II and III odontoid fractures. MATERIAL AND METHODS In this retrospective study, surgery consisted of anterior odontoid screw fixation under intraoperative O-arm assistance over 5 years. Demographical, clinical, radiological, operative details and postoperative events were retrieved from hospital database and evaluated for fusion and surgical outcome. RESULTS 50 patients (Mean age 34.6 years, SD 14.10, range: 7-70 years; 44 males and 6 females) with Type II and Type III odontoid fracture underwent O-arm assisted anterior screw placement. The mean interval between injury and surgery was 12 days (range 1-65 days). Mean operating time was 132.2 min ± SD 33.56 with average blood loss of 93 ml. ±SD 61.46. With our technique, accurate screw placement was achieved in 100% patients. At the mean follow-up of 26.4 month (SD13.75), overall acceptable fusion rate was 97.8% with non-union in 2.2% patients. Morbidity occurred in two patients; one patient developed fixation failure while other patient had nonunion which was managed with posterior C1-C2 arthrodesis. We had surgical mortality in one patient due to SAH. So overall our procedure was successful in 94% patients and among patients whose follow-up was available, acceptable fusion rates of 97.8% were achieved. CONCLUSION We conclude that use of intraoperative three-dimensional imaging using O-arm for anterior odontoid screw fixation improves accuracy and leads to improved radiological and clinical outcomes. It further enables us to extend the indications of odontoid screw fixation to selected complex Type II and rostral Type III odontoid fractures.
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Affiliation(s)
| | - Pankaj Kumar Singh
- Department of Neurosurgery, JPN Apex Trauma Center, All India Institute of Medical Sciences, New Delhi, India
| | - Deepak Agrawal
- Department of Neurosurgery, JPN Apex Trauma Center, All India Institute of Medical Sciences, New Delhi, India
| | - Guru Dutta Satyarthee
- Department of Neurosurgery, JPN Apex Trauma Center, All India Institute of Medical Sciences, New Delhi, India
| | - Deepak Kumar Gupta
- Department of Neurosurgery, JPN Apex Trauma Center, All India Institute of Medical Sciences, New Delhi, India
| | - Vivek Tandon
- Department of Neurosurgery, JPN Apex Trauma Center, All India Institute of Medical Sciences, New Delhi, India
| | - Hitesh Kumar Gurjar
- Department of Neurosurgery, JPN Apex Trauma Center, All India Institute of Medical Sciences, New Delhi, India
| | - Sachin Borkar
- Department of Neurosurgery, JPN Apex Trauma Center, All India Institute of Medical Sciences, New Delhi, India
| | - Amandeep Jagdevan
- Department of Neurosurgery, JPN Apex Trauma Center, All India Institute of Medical Sciences, New Delhi, India
| | - Shashwat Mishra
- Department of Neurosurgery, JPN Apex Trauma Center, All India Institute of Medical Sciences, New Delhi, India
| | - Shweta Kedia
- Department of Neurosurgery, JPN Apex Trauma Center, All India Institute of Medical Sciences, New Delhi, India
| | - Rajeev Sharma
- Department of Neurosurgery, JPN Apex Trauma Center, All India Institute of Medical Sciences, New Delhi, India
| | - Ramesh Doddamani
- Department of Neurosurgery, JPN Apex Trauma Center, All India Institute of Medical Sciences, New Delhi, India
| | - Satish Verma
- Department of Neurosurgery, JPN Apex Trauma Center, All India Institute of Medical Sciences, New Delhi, India
| | - Rajesh Meena
- Department of Neurosurgery, JPN Apex Trauma Center, All India Institute of Medical Sciences, New Delhi, India
| | - Rajinder Kumar
- Department of Neurosurgery, JPN Apex Trauma Center, All India Institute of Medical Sciences, New Delhi, India
| | - P Sarat Chandra
- Department of Neurosurgery, JPN Apex Trauma Center, All India Institute of Medical Sciences, New Delhi, India
| | - Shashank S Kale
- Department of Neurosurgery, JPN Apex Trauma Center, All India Institute of Medical Sciences, New Delhi, India
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Varshney G, Kumar A, Doddamani RS, Meena R, Sawarkar DP, Verma S, Singh PK, Gupta D, Satyarthee G, Chandra PS, Kale SS. Single-Stage Posterior Only Approach for Unilateral Atlantoaxial Spondyloptosis with type-II odontoid Fracture in Pediatric Patients. Neurol India 2022; 70:S129-S134. [PMID: 36412359 DOI: 10.4103/0028-3886.360918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
OBJECTIVE When there is a complete slippage of facet joints of C1 over C2 such that there is no contact between the articulating surfaces of C1 and C2, the condition is known as atlantoaxial spondyloptosis (AAS). AAS represents an extremely rare manifestation of atlantoaxial instability. This study was performed to highlight the presentation, radiological features, and management of unilateral AAS in pediatric patients. MATERIAL AND METHODS We retrospectively identified four pediatric patients with AAS from our hospital records in the last 6 years (2014-2019). RESULTS Among the four patients with unilateral AAS, three were posttraumic and one was diagnosed with craniovertebral junction tuberculosis (CVJ TB). All the patients had a varying degree of spastic quadriparesis on presentation. One patient with CVJ TB presented with neck tilt. All patients with traumatic unilateral AAS were associated with an odontoid fracture. These patients underwent C1-C2 fixation with complete reduction of spondyloptosis using the techniques of joint manipulation and joint remodeling with a posterior only approach. Complete reduction of AAS in patients with trauma was also associated with the realignment of the odontoid fracture. All patients improved neurologically after surgery and achieved excellent correction of the deformity on a follow-up imaging. CONCLUSION Pediatric unilateral AAS is an extremely rare phenomenon. A single-stage posterior approach with C1-C2 fixation is a feasible technique for the treatment of this seemingly difficult to correct deformity in pediatric patients and the clinical outcomes are excellent.
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Affiliation(s)
- Gaurav Varshney
- Department of Neurosurgery, All India Institute of Medical Sciences, New Delhi, India
| | - Amandeep Kumar
- Department of Neurosurgery, All India Institute of Medical Sciences, New Delhi, India
| | - Ramesh S Doddamani
- Department of Neurosurgery, All India Institute of Medical Sciences, New Delhi, India
| | - Rajesh Meena
- Department of Neurosurgery, All India Institute of Medical Sciences, New Delhi, India
| | - Dattaraj P Sawarkar
- Department of Neurosurgery, All India Institute of Medical Sciences, New Delhi, India
| | - Satish Verma
- Department of Neurosurgery, All India Institute of Medical Sciences, New Delhi, India
| | - Pankaj Kumar Singh
- Department of Neurosurgery, All India Institute of Medical Sciences, New Delhi, India
| | - Deepak Gupta
- Department of Neurosurgery, All India Institute of Medical Sciences, New Delhi, India
| | - Gurudutta Satyarthee
- Department of Neurosurgery, All India Institute of Medical Sciences, New Delhi, India
| | - P Sarat Chandra
- Department of Neurosurgery, All India Institute of Medical Sciences, New Delhi, India
| | - Shashank Sharad Kale
- Department of Neurosurgery, All India Institute of Medical Sciences, New Delhi, India
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Wilkinson BM, Ojukwu DI, Galgano MA. Operative Technique for Resection of a Ventral Trans-Dural Retro-Odontoid Pannus: A 2-Dimensional Operative Video. World Neurosurg 2022; 165:13-17. [PMID: 35526815 DOI: 10.1016/j.wneu.2022.04.124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Revised: 04/26/2022] [Accepted: 04/27/2022] [Indexed: 11/17/2022]
Abstract
Retro-odontoid pseudotumors are rare inflammatory complications of atlantoaxial instability often associated with cervical degenerative disease and rheumatoid arthritis. While propagation of these lesions has been shown to cause spinal cord compression and cervical myelopathy, intradural extension has rarely been reported. In this manuscript and two-dimensional illustrative intra-operative video, we demonstrate cervical decompression, removal of the intradural component, and stabilization with C1-2 instrumentation utilizing a posterior approach. A 71 year old patient presented with progressive cervical myelopathy. Preoperative imaging demonstrated a large retro-odontoid pannus causing severe spinal cord compression and an associated contrast-enhancing intradural lesion, in the absence of obvious C1-2 instability or fractures on CT scan. C1-2 posterior decompression and fusion were performed with maximally safe intradural pannus resection and ventral dural reconstruction. Postoperatively, the patient experienced significant improvement in myelopathic symptoms. Imaging demonstrated good spinal cord decompression with complete intradural pannus resection and debulking of the extradural component. Our outcome in this rare complication suggests a posterior approach may be effective in treating similar patients.
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Affiliation(s)
- Brandon M Wilkinson
- Department of Neurosurgery, SUNY Upstate Medical University, Syracuse, New York, USA
| | - Disep I Ojukwu
- St. George's University, School of Medicine, Great River, New York, USA.
| | - Michael A Galgano
- Department of Neurosurgery, SUNY Upstate Medical University, Syracuse, New York, USA; University of North Carolina, Department of Neurosurgery (current institution), Physicians Office Building, Chapel Hill, North Carolina, USA
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Kotheeranurak V, Pholprajug P, Jitpakdee K, Pruttikul P, Chitragran R, Singhatanadgige W, Limthongkul W, Yingsakmongkol W, Kim J. Full-Endoscopic Anterior Odontoid Screw Fixation: A Novel Surgical Technique. Orthop Surg 2022; 14:990-996. [PMID: 35445547 PMCID: PMC9087464 DOI: 10.1111/os.13271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 02/22/2022] [Accepted: 03/21/2022] [Indexed: 12/02/2022] Open
Abstract
OBJECTIVE First, to propose a novel minimally invasive technique of full-endoscopic anterior odontoid fixation (FEAOF) that aims to reduce the risk of retropharyngeal approach (both open and percutaneous techniques) to anterior odontoid screw fixation. Second, to describe steps of the procedure and, lastly, to report the initial outcomes in patients treated with this novel technique. METHODS Four non-consecutive patients who were diagnosed with a displaced odontoid fracture (Anderson-D'Alonzo classification type II and Grauer subclassification type A or B) from 2019 to 2020 underwent surgical fixation by our novel technique for anterior odontoid screw fixation. A detailed technical approach of FEAOF for the surgical treatment of type II odontoid fractures was described, and the patients' outcomes based on postoperative radiographic results including computed tomography (CT), clinical outcome parameters including visual analogue scale (VAS) for neck pain both preoperatively and at postoperative follow-up, and range of neck motion at the final follow-up were reported. RESULTS The mean age was 33.5 years (24-41), three patients were male. The mean operative time was 93.75 min, and the mean blood loss was 7.5 ml. An immediate post-operative thin-sliced CT showed that all patients achieved satisfactory reduction and proper screw position. No screw malposition or penetration was found. At a 6-month follow-up, a thin-sliced CT demonstrated solid bony union in every case. The mean VAS for neck pain was reduced from 6.5 to 0.6 at the 6-months follow-up. At the final follow-up, all patients showed improvement in ranges of motion without any complications; however, one patient was lost to follow-up. CONCLUSIONS FEAOF is a feasible and effective option for treating type II odontoid fractures. The procedure is less invasive than other techniques and provides clear direct visualization of the involved structures.
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Affiliation(s)
- Vit Kotheeranurak
- Department of OrthopaedicsQueen Savang Vadhana Memorial HospitalSrirachaThailand
| | | | - Khanathip Jitpakdee
- Department of OrthopaedicsQueen Savang Vadhana Memorial HospitalSrirachaThailand
| | | | - Roongrath Chitragran
- Department of OrthopaedicsPhramongkutklao hospital and college of medicineBangkokThailand
| | - Weerasak Singhatanadgige
- Department of Orthopaedics, Faculty of MedicineChulalongkorn UniversityBangkokThailand
- Center of Excellence in Biomechanics and Innovative Spine SurgeryChulalongkorn UniversityBangkokThailand
| | - Worawat Limthongkul
- Department of Orthopaedics, Faculty of MedicineChulalongkorn UniversityBangkokThailand
- Center of Excellence in Biomechanics and Innovative Spine SurgeryChulalongkorn UniversityBangkokThailand
| | - Wicharn Yingsakmongkol
- Department of Orthopaedics, Faculty of MedicineChulalongkorn UniversityBangkokThailand
- Center of Excellence in Biomechanics and Innovative Spine SurgeryChulalongkorn UniversityBangkokThailand
| | - Jin‐Sung Kim
- Department of Neurosurgery, Seoul St. Mary's Hospital, Spine CenterCollege of medicineSeoulSouth Korea
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Pongmanee S, Sarasombath P, Rojdumrongrattana B, Liawrungrueang W. An Unusual Chordoma of the Odontoid Process: A Case Report and Literature Review. J Am Acad Orthop Surg Glob Res Rev 2022; 6:e22.00018. [PMID: 35584249 PMCID: PMC10566828 DOI: 10.5435/jaaosglobal-d-22-00018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2022] [Accepted: 03/24/2022] [Indexed: 06/15/2023]
Abstract
The aim of this study is to present a rare case of chordoma in the odontoid process in which the tumor involved the odontoid process and compressed the spinal cord at the craniocervical junction. We report on the effectiveness and successful outcome of anterior microscopic tumor resection combined with posterior occipitocervical fixation and review the current standard treatment. A 39-year-old man presented with sudden dyspnea and quadriparesis caused by an unknown tumor compression at C2. Radiographic examination revealed a large destructive mass at C2 and heterogeneous enhancement. The patient received urgent surgical intervention by microscopic-assisted anterior tumor resection and posterior spinal fixation from the occiput to the C5 level. The pathohistologic reports for cytokeratins, epithelial membrane antigen, and S-100 protein were positive. The final diagnosis was chordoma of the odontoid process. At the 2-year follow-up, the patient's condition had improved, and a postoperative MRI showed no indication of tumor regrowth. Chordoma of the odontoid process or C2 body is very rare. The current standard management is wide tumor resection to prevent recurrence. The combined approach of anterior tumor resection with microscopic assistance and posterior stabilization of the occiput to C5 is the optimal treatment for this condition.
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Affiliation(s)
- Suthipas Pongmanee
- From the Department of Orthopaedics, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand
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43
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Watts A, Athanassacopoulos M, Breakwell L, Chiverton N, Cole A, Ivanov M, Tomlinson J. Management of C2 odontoid peg fragility fractures - A UK survey of spinal surgeons. Injury 2022; 53:1057-1061. [PMID: 34635337 DOI: 10.1016/j.injury.2021.09.057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 07/23/2021] [Accepted: 09/26/2021] [Indexed: 02/02/2023]
Abstract
PURPOSE Patients sustaining fragility fractures of the C2 odontoid peg have 30-day mortality rates as high as 10% rising up to 34.1% at 1 year. Substantial controversy exists regarding optimal management of these fractures and there is a lack of national guidance to inform best practice. The aim of this study was to determine current practice in the management of these fractures throughout the United Kingdom. METHODS A UK wide, cross sectional survey was conducted, asking 10 questions regarding the initial management, imaging and follow-up of an elderly patient with a type 2 fragility odontoid peg fracture. This was publicised through the British Orthopaedic Association website and sent to all members of the Society of British Neurological Surgeons (SBNS) via email. RESULTS 107 Responses were received. 56% from orthopaedic consultants, 29% from neurosurgical consultants and 15% from senior spine fellows. 86% (92) of respondents choose treatment with a cervical orthosis, with 84% (77) of these opting for a semi rigid Aspen or Philadelphia collar compared to 16% (15) opting for a soft cervical collar. Three (3%) opted for operative intervention with a further three (3%) choosing Halo fixation. Nine respondents (8%) opted for no orthosis and treatment with analgesia alone. Length of immobilisation in cervical orthosis ranged from 6 to 12 weeks. Initial follow-up ranged from 1 week to 6 weeks, with 6% (6) discharged without follow up. There was also marked variation in the use of follow-up imaging with 17% (18) using plain radiographs, 62% (66) requesting lateral flexion / extension radiographs, 10% (11) using CT and 11% (12) not performing any imaging at final follow up. In 60% (64) of cases respondents did not change subsequent management as a result of imaging. CONCLUSION Type-2 fragility peg fractures have high morbidity and mortality. There is marked variation in the treatment modalities used, follow-up regime and use of imaging throughout the UK. Given the rapidly increasing incidence of these injuries and the associated mortality this should be a high priority field for further research. Further large scale studies are urgently required to inform best practice and standardise management of these injuries.
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Affiliation(s)
- Anna Watts
- Speciality Registrar Trauma and Orthopaedics, Sheffield Teaching Hospital NHS Foundation Trust, England.
| | | | - Lee Breakwell
- Consultant Spinal Surgeon, Sheffield Teaching Hospital NHS Foundation Trust.
| | - Neil Chiverton
- Consultant Spinal Surgeon, Sheffield Teaching Hospital NHS Foundation Trust.
| | - Ashley Cole
- Consultant Spinal Surgeon, Sheffield Teaching Hospital NHS Foundation Trust.
| | - Marcel Ivanov
- Consultant Spinal Surgeon, Sheffield Teaching Hospital NHS Foundation Trust.
| | - James Tomlinson
- Consultant Spinal Surgeon, Sheffield Teaching Hospital NHS Foundation Trust.
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Bunmaprasert T, Trirattanapikul V, Sugandhavesa N, Phanphaisarn A, Liawrungrueang W, Phinyo P. Reducible Nonunited Type II Odontoid Fracture with Atlantoaxial Instability: Outcomes of Two Different Fixation Techniques. Int J Environ Res Public Health 2021; 18:ijerph18157990. [PMID: 34360289 PMCID: PMC8345345 DOI: 10.3390/ijerph18157990] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 07/19/2021] [Accepted: 07/27/2021] [Indexed: 11/16/2022]
Abstract
Displaced nonunited type II odontoid fracture can result in atlantoaxial instability, causing delayed cervical myelopathy. Both Magerl's C1-C2 transarticular screw fixation technique and Harms-Goel C1-C2 screw-rod segmental fixation technique are effective techniques to provide stability. This study aimed to demonstrate the results of two surgical fixation techniques for the treatment of reducible nonunited type II odontoid fracture with atlantoaxial instability. Medical records of patients with reducible nonunited type II odontoid fracture hospitalized for spinal fusion between April 2007 and April 2018 were reviewed. For each patient, specific surgical fixation, either Magerl's C1-C2 transarticular screw fixation technique augmented with supplemental wiring or Harms-Goel C1-C2 screw-rod fixation technique, was performed according to our management protocol. We reported the fusion rate, fusion period, and complications for each technique. Of 21 patients, 10 patients were treated with Magerl's C1-C2 transarticular screw fixation technique augmented with supplemental wiring, and 11 were treated with Harms-Goel C1-C2 screw-rod fixation technique. The bony fusion rate was 100% in both groups. The mean time to fusion was 69.7 (95%CI 53.1, 86.3) days in Magerl's C1-C2 transarticular screw fixation technique and 75.2 (95%CI 51.8, 98.6) days in Harms-Goel C1-C2 screw-rod fixation technique. No severe complications were observed in either group. Displaced reducible, nonunited type II odontoid fracture with cervical myelopathy should be treated by surgery. Both fixation techniques promote bony fusion and provide substantial construct stability.
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Affiliation(s)
- Torphong Bunmaprasert
- Department of Orthopaedics, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (T.B.); (V.T.); (N.S.); (A.P.); (W.L.)
| | - Vorapop Trirattanapikul
- Department of Orthopaedics, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (T.B.); (V.T.); (N.S.); (A.P.); (W.L.)
| | - Nantawit Sugandhavesa
- Department of Orthopaedics, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (T.B.); (V.T.); (N.S.); (A.P.); (W.L.)
| | - Areerak Phanphaisarn
- Department of Orthopaedics, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (T.B.); (V.T.); (N.S.); (A.P.); (W.L.)
| | - Wongthawat Liawrungrueang
- Department of Orthopaedics, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (T.B.); (V.T.); (N.S.); (A.P.); (W.L.)
| | - Phichayut Phinyo
- Department of Family Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
- Center for Clinical Epidemiology and Clinical Statistics, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
- Musculoskeletal Science and Translational Research (MSTR) Cluster, Chiang Mai University, Chiang Mai 50200, Thailand
- Correspondence: ; Tel.: +66-53-935-180
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Chibbaro S, Mallereau CH, Ganau M, Zaed I, Teresa Bozzi M, Scibilia A, Cebula H, Ollivier I, Loit MP, Chaussemy D, Coca HA, Dannhoff G, Romano A, Nannavecchia B, Gubian A, Spatola G, Signorelli F, Iaccarino C, Pop R, Proust F, Baloglu S, Todeschi J. Odontoid Type II fractures in elderly: what are the real management goals and how to best achieve them? A multicenter European study on functional outcome. Neurosurg Rev 2021; 45:709-718. [PMID: 34232408 DOI: 10.1007/s10143-021-01594-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 05/01/2021] [Accepted: 05/13/2021] [Indexed: 11/27/2022]
Abstract
Odontoid fractures constitute the most common cervical fractures in elderly. External immobilization is the treatment of choice for Type I and III; there is still no wide consensus about the best management of Type II fractures. Observational multicenter study was conducted on a prospectively built database on elderly patients (> 75 years) with Type II odontoid fracture managed conservatively during the last 10 years. All patients underwent CT scan on admission and at 3 months; if indicated, selected patient had CT scan at 6 and 12 months. All patients were clinically evaluated by Neck Disability Index (NDI), Charlson Comorbidity Index (CCI), and American Society of Anaesthesiologists classification (ASA) on admission; NDI was assessed also at 6 weeks, 3, 6, 12, and 24 months; furthermore, a quality of life (QoL) assessment with the SF-12 form was performed at 3 and 12 months. Among the 260 patients enrolled, 177 (68%) were women and 83 (32%) men, with a median age of 83 years. Patients were followed up for a minimum of 24 months: 247 (95%) showed an excellent functional outcome within 6 weeks, among them 117 (45%) showed a good bony healing, whereas 130 (50%) healed in pseudo-arthrosis. The residual 5% were still variably symptomatic at 12 weeks; however, only 5 out of 13 (2% of the total cohort) required delayed surgery. This study showed that a conservative approach to odontoid Type II fracture in elderly is an effective and valid option, resulting in an excellent functional outcome (regardless of bony fusion) in the majority of cases. Failure of conservative treatment can be safely addressed with surgical fixation at a later stage.
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Affiliation(s)
- Salvatore Chibbaro
- Department of Neurosurgery, Strasbourg University Hospital, Strasbourg, France
| | | | - Mario Ganau
- Department of Neurosurgery, Oxford University Hospital, Oxford, UK
| | - Ismail Zaed
- Department of Neurosurgery, Humanitas University Hospital, Rozzano, Italy
| | - Maria Teresa Bozzi
- Department of Neurosurgery, Strasbourg University Hospital, Strasbourg, France
| | - Antonino Scibilia
- Department of Neurosurgery, Strasbourg University Hospital, Strasbourg, France
| | - Helene Cebula
- Department of Neurosurgery, Strasbourg University Hospital, Strasbourg, France
| | - Irene Ollivier
- Department of Neurosurgery, Strasbourg University Hospital, Strasbourg, France
| | - Marie-Pierre Loit
- Department of Neurosurgery, Strasbourg University Hospital, Strasbourg, France
| | - Dominique Chaussemy
- Department of Neurosurgery, Strasbourg University Hospital, Strasbourg, France
| | - Hugo-Andres Coca
- Department of Neurosurgery, Strasbourg University Hospital, Strasbourg, France
| | - Guillaume Dannhoff
- Department of Neurosurgery, Strasbourg University Hospital, Strasbourg, France
| | - Antonio Romano
- Department of Neurosurgery, Parma University Hospital, Parma, Italy
| | | | - Arthur Gubian
- Department of Neurosurgery, Heidelberg University Hospital, Heidelberg, Germany
| | - Giorgio Spatola
- Department of Neurosurgery, Poli-Ambulanza Hospital, Brescia, Italy
| | | | - Corrado Iaccarino
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Modena, Italy
- Division of Neurosurgery, University Hospital of Modena, Modena, Italy
| | - Raoul Pop
- Neuroradiology Unit, Strasbourg University Hospital, Strasbourg, France
| | - François Proust
- Department of Neurosurgery, Strasbourg University Hospital, Strasbourg, France
| | - Seyyid Baloglu
- Neuroradiology Unit, Strasbourg University Hospital, Strasbourg, France
| | - Julien Todeschi
- Department of Neurosurgery, Strasbourg University Hospital, Strasbourg, France
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46
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Gandbhir VN, Agrawal VJ, Kakadiya GC, Chaudhary KS. Retro-Odontoid Pseudotumor Without Radiographic Instability with Congenital C1 Assimilation and C2-C3 Fusion: A Case Report. JBJS Case Connect 2021; 11:01709767-202106000-00100. [PMID: 34101670 DOI: 10.2106/jbjs.cc.20.00980] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
CASE The authors present a case of retro-odontoid pseudotumor (ROP) with congenital C1 assimilation and C2-C3 block vertebra without radiological instability who presented with cervical myelopathy with spastic quadriparesis. The patient was managed with occipitocervical fusion and C1 laminectomy. She had rapid neurological recovery in 3 months postoperatively and at 2 years had complete resolution of the retro-odontoid mass. CONCLUSION C1 assimilation without apparent radiographic instability as a cause of ROP is underappreciated. This case report and review of literature highlight that C1 assimilation and C2-C3 fusion can lead to ROP even in the absence of apparent radiographic instability with posterior atlantoaxial fusion alone providing good results.
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Affiliation(s)
- Viraj N Gandbhir
- Department of Orthopaedics, T.N.M.C. and B.Y.L. Nair Ch. Hospital, Mumbai, Maharashtra, India
| | - Vivek J Agrawal
- Department of Neurosurgery, Sir H. N. Reliance Foundation Hospital and Research Centre, Mumbai, Maharashtra, India
| | - Ghanshyam C Kakadiya
- Department of Orthopaedics, T.N.M.C. and B.Y.L. Nair Ch. Hospital, Mumbai, Maharashtra, India
| | - Kshitij S Chaudhary
- Department of Orthopaedics, Sir H. N. Reliance Foundation Hospital and Research Centre, Mumbai, Maharashtra, India
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Tyagi G, Patel KR, Singh GJ, Uppar AM, Beniwal M, Rao KVLN, Pruthi N, Bhat D, Somanna S, Chandramouli B, Dwarakanath S. Anterior Odontoid Screw Fixation for C2 Fractures: Surgical Nuances, Complications, and Factors Affecting Fracture Union. World Neurosurg 2021; 152:e279-e288. [PMID: 34058365 DOI: 10.1016/j.wneu.2021.05.077] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 05/19/2021] [Accepted: 05/20/2021] [Indexed: 11/18/2022]
Abstract
OBJECTIVE Type II odontoid fractures are the commonest C2 fractures. The management of dens fractures remains controversial with various radiological and fracture morphological factors affecting the approach and outcomes. METHODS All cases of anterior odontoid screw fixation between 2010 and 2020 were retrospectively analyzed. Patients' clinical, radiological (type of fracture, orientation, displacement, and diastasis), operative (single vs. double screw) and follow-up records were documented. The postoperative imaging findings were classified into grades I (excellent), II (good), and III (poor) based on the anatomical alignment with the screw. Follow-up cervical computed tomography was reviewed for fracture union. RESULTS A total of 49 patients with a mean age of 37.3 ± 13.8 years were included in the study. The average time from injury to surgery was 23.1 ± 22.2 days. The bicortical screw purchase and superoposterior odontoid tip breach significantly affected the postoperative alignment (P = 0.035 each). Fracture union was noted in 41 (83.7%) patients. The horizontal fracture displacement ≥2.5 mm (P = 0.02) and poor postoperative fracture alignment (P < 0.001) resulted in worse fracture union rates. Transient dysphagia was the commonest complication (n = 12), whereas screw breakout (n = 2) and pullout (n = 2) were other hardware-related complications. One patient underwent re-exploration for screw readjustment and 2 underwent posterior instrumentation. CONCLUSIONS Anterior odontoid screw fixation is technically straightforward, less morbid, and preserves biomechanical cervical mobility, when compared with the posterior instrumentation. With careful patient selection, meticulous surgical planning, and intraoperative image-guided screw insertion, good fracture union outcomes can be obtained. In the current study, we were able to achieve stable fracture union in 83.7% patients.
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Affiliation(s)
- Gaurav Tyagi
- Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bangalore, India
| | - Kautilya R Patel
- Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bangalore, India
| | - Gyani Jail Singh
- Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bangalore, India
| | - Alok Mohan Uppar
- Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bangalore, India
| | - Manish Beniwal
- Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bangalore, India
| | | | - Nupur Pruthi
- Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bangalore, India
| | - Dhananjaya Bhat
- Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bangalore, India
| | - Sampath Somanna
- Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bangalore, India
| | - Bangalore Chandramouli
- Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bangalore, India
| | - Srinivas Dwarakanath
- Department of Neurosurgery, National Institute of Mental Health and Neurosciences, Bangalore, India.
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Farah K, Meyer M, Reyre A, Cot K, Fuentes S. PICA injury secondary to anterior odontoid screw fixation: Case report of an exceptional complication. Neurochirurgie 2021; 67:310-314. [PMID: 33753130 DOI: 10.1016/j.neuchi.2021.02.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Revised: 02/15/2021] [Accepted: 02/28/2021] [Indexed: 12/21/2022]
Abstract
BACKGROUND Odontoid fracture is a common injury in the upper cervical spine that can sometimes be managed by anterior odontoid screw fixation. CASE DESCRIPTION We report the first case of iatrogenic postero-inferior cerebellar artery (PICA) injury while performing anterior odontoid screw fixation for a type II odontoid fracture in a 22-year-old man. Fisher grade 4 subarachnoid hemorrhage secondary to iatrogenic pseudoaneurysm formation was managed by the endovascular neuroradiologist. Odontoid fracture was then managed posteriorly using Harm's technique. Postoperative 12-month follow-up revealed good clinical and radiological results. CT scan showed fusion. Complete exclusion of the pseudo aneurysm with a mild stroke in the inferior left cerebellar hemisphere were noted on the MRI. There were no cerebellar ataxia or swallowing disorders. CONCLUSION To the best of our knowledge, this is the first case report of iatrogenic PICA injury in anterior odontoid screw fixation. The patient was well managed in our institution within a multidisciplinary team. We recommend that surgical management of odontoid fractures should be performed in expert centres.
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Affiliation(s)
- K Farah
- Neurosurgery department, Aix-Marseille University, APHM, CHU Timone, Marseille, France.
| | - M Meyer
- Neurosurgery department, Aix-Marseille University, APHM, CHU Timone, Marseille, France
| | - A Reyre
- Endovascular neuroradiology department, Aix-Marseille University, APHM, CHU Timone, Marseille, France
| | - K Cot
- Anesthesiology-intensive care department, Aix-Marseille University, APHM, CHU Timone, Marseille, France
| | - S Fuentes
- Neurosurgery department, Aix-Marseille University, APHM, CHU Timone, Marseille, France
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49
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Yang S, Liu YJ, Jiang WM. Experience in surgical treatment of type Ⅱ odontoid fractures: A report of two cases and review of the literature. Chin J Traumatol 2021; 24:57-62. [PMID: 31757743 PMCID: PMC7878463 DOI: 10.1016/j.cjtee.2019.10.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 09/15/2019] [Accepted: 10/05/2019] [Indexed: 02/04/2023] Open
Abstract
Two cases of type Ⅱ odontoid fractures were reported to share our experience in surgery treatment of such cases. A 33-year-old woman with comminuted type Ⅱ odontoid fracture and a 42-year-old man with fracture end hardened type Ⅱ odontoid fracture received surgical treatment in our hospital. Though imaging examination suggested that these two patients were suitable for anterior screw fixation, we encountered difficulties during the operation. The two patients eventually underwent posterior C1-C2 fusion surgery and recovered well. According to the experience of these two cases, we found that the fracture line angle and the degree of comminution are two important factors affecting surgical decision-making. Although anterior screw fixation is the ideal choice for type Ⅱ odontoid fractures with anterior superior to posterior inferior fracture line, it may not be the best choice for comminuted or fracture end hardened type Ⅱ odontoid fractures.
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Affiliation(s)
- Sen Yang
- Department of Orthopaedic Surgery, First Affiliated Hospital of Soochow University, Suzhou, 215006, China
| | - Yi-Jie Liu
- Department of Orthopaedic Surgery, First Affiliated Hospital of Soochow University, Suzhou, 215006, China
| | - Wei-Min Jiang
- Department of Orthopaedic Surgery, First Affiliated Hospital of Soochow University, Suzhou, 215006, China.
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García-Ramos CL, Mireles-Cano JN, Rosales-Olivarez LM, Alpizar-Aguirre A, Reyes-Sánchez A. [ Os odontoideum. Presentation in adult age]. Acta Ortop Mex 2020; 34:234-237. [PMID: 33535281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The Os odontoideum is a variable oval or round ossicle with a smooth cortical border, which partially corresponds to the odontoid process, without having continuity with the rest of C2 bone. The multifactorial etiology causes instability and clinically translates into pain and compression data into neural structures. The treatment of choice is surgical and techniques have been developed that focus on preserving the stability of the segment. We present the case of a 23-year-old female patient, who begins to suffer at 8 years of age, refers to moderate to severe cervicalgia, which develops with paresthesias in the left hemisphere and later paresis of the left thoracic limb. Physical examination showed hypoaesthesia of the left hemisphere, as well as paresis of the left thoracic limb. Extension studies demonstrate chronic axonal lesion from C1 to C3, predominantly left, imaging studies showing axial instability and magnetic resonance bulbar compression. The patient receives surgical treatment consisting of posterior fixation C1-C2, evolving satisfactorily.
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Affiliation(s)
- C L García-Ramos
- Servicio Cirugía de Columna Vertebral, Instituto Nacional de Rehabilitación «Dr. Luis Guillermo Ibarra Ibarra». Av. México-Xochimilco 289, C.P. 14389. Ciudad de México. México
| | - J N Mireles-Cano
- Cirugía de Columna Vertebral. Hospital Regional de Alta Especialidad del Bajío, León, Guanajuato, México
| | - L M Rosales-Olivarez
- Servicio Cirugía de Columna Vertebral, Instituto Nacional de Rehabilitación «Dr. Luis Guillermo Ibarra Ibarra». Av. México-Xochimilco 289, C.P. 14389. Ciudad de México. México
| | - A Alpizar-Aguirre
- Servicio Cirugía de Columna Vertebral, Instituto Nacional de Rehabilitación «Dr. Luis Guillermo Ibarra Ibarra». Av. México-Xochimilco 289, C.P. 14389. Ciudad de México. México
| | - A Reyes-Sánchez
- División de Cirugía de Columna, Instituto Nacional de Rehabilitación «Dr. Luis Guillermo Ibarra Ibarra». Av. México-Xochimilco 289, C.P. 14389. Ciudad de México. México
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