1
|
Levy HA, Pinter ZW, Kazarian ER, Sodha S, Rhee JM, Fehlings MG, Freedman BA, Nassr AN, Karamian BA, Sebastian AS, Currier B. Contemporary Practice Patterns in the Treatment of Cervical Stenosis and Central Cord Syndrome: A Survey of the Cervical Spine Research Society. Clin Spine Surg 2024:01933606-990000000-00346. [PMID: 39101583 DOI: 10.1097/bsd.0000000000001663] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Accepted: 06/28/2024] [Indexed: 08/06/2024]
Abstract
STUDY DESIGN Cross-sectional study. OBJECTIVE To evaluate for areas of consensus and divergence of opinion within the spine community regarding the management of cervical spondylotic conditions and acute traumatic central cord syndrome (ATCCS) and the influence of the patient's age, disease severity, and myelomalacia. SUMMARY OF BACKGROUND DATA There is ongoing disagreement regarding the indications for, and urgency of, operative intervention in patients with mild degenerative myelopathy, moderate to severe radiculopathy, isolated axial symptomatology with evidence of spinal cord compression, and ATCCS without myelomalacia. METHODS A survey request was sent to 330 attendees of the Cervical Spine Research Society (CSRS) 2021 Annual Meeting to assess practice patterns regarding the treatment of cervical stenosis, myelopathy, radiculopathy, and ATCCS in 16 unique clinical vignettes with associated MRIs. Operative versus nonoperative treatment consensus was defined by a management option selected by >80% of survey participants. RESULTS Overall, 116 meeting attendees completed the survey. Consensus supported nonoperative management for elderly patients with axial neck pain and adults with axial neck pain without myelomalacia. Operative management was indicated for adult patients with mild myelopathy and myelomalacia, adult patients with severe radiculopathy, elderly patients with severe radiculopathy and myelomalacia, and elderly ATCCS patients with pre-existing myelopathic symptoms. Treatment discrepancy in favor of nonoperative management was found for adult patients with isolated axial symptomatology and myelomalacia. Treatment discrepancy favored operative management for elderly patients with mild myelopathy, adult patients with mild myelopathy without myelomalacia, elderly patients with severe radiculopathy without myelomalacia, and elderly ATCCS patients without preceding symptoms. CONCLUSIONS Although there is uncertainty regarding the treatment of mild myelopathy, operative intervention was favored for nonelderly patients with evidence of myelomalacia or radiculopathy and for elderly patients with ATCCS, especially if pre-injury myelopathic symptoms were present. LEVEL OF EVIDENCE Level V.
Collapse
Affiliation(s)
- Hannah A Levy
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN
| | | | - Erick R Kazarian
- Department of Orthopedic Surgery, Rothman Institute, New York City, NY
| | | | - John M Rhee
- Department of Orthopedic Surgery, Emory University, Atlanta, GA
| | - Michael G Fehlings
- Department of Surgery, Division of Neurosurgery, University of Toronto, Toronto, ON, Canada
| | | | - Ahmad N Nassr
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN
| | - Brian A Karamian
- Department of Orthopaedic Surgery, University of Utah, Salt Lake City, UT
| | | | | |
Collapse
|
2
|
Acute Traumatic Myelopathy: Rethinking Central Cord Syndrome. J Am Acad Orthop Surg 2022; 30:1099-1107. [PMID: 36400056 DOI: 10.5435/jaaos-d-22-00260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 06/02/2022] [Indexed: 11/21/2022] Open
Abstract
Central cord syndrome (CCS) is an incomplete spinal cord injury that consists of both sensory and motor changes of the upper and lower extremities. CCS most commonly occurs after trauma to the cervical spine leading to acute neurological changes. Despite being the most common incomplete spinal cord injury with the best outcomes, optimal treatment remains controversial. Although clinical practice has shifted from primarily conservative management to early surgical intervention, many questions remain unanswered and treatment remains varied. One of the most limiting aspects of CCS remains the diagnosis itself. CCS, by definition, is a syndrome with a very specific pattern of neurological deficits. In practice and in the literature, CCS has been used to describe a spectrum of neurological conditions and traumatic morphologies. Establishing clarity will allow for more accurate decision making by clinicians involved in the care of these injuries. The authors emphasize that a more precise term for the clinical condition in question is acute traumatic myelopathy: an acute cervical cord injury in the setting of a stable spine with either congenital and/or degenerative stenosis.
Collapse
|
3
|
Liu G, Liu L, Wang Y. Surgical Efficacy and Prognostic Factors for Acute Traumatic Central Cord Syndrome Without Fracture and Dislocation. Orthopedics 2022; 45:325-332. [PMID: 36098568 DOI: 10.3928/01477447-20220907-07] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
This study was undertaken to evaluate the effectiveness of surgical treatment of acute traumatic central cord syndrome (ATCCS) without fracture and dislocation and explore surgical timing and factors influencing postoperative recovery of spinal cord function. We retrospectively collected the general and clinical data of 112 patients with ATCCS (American Spinal Injury Association impairment scale grade C or D) without fracture and dislocation who underwent surgical treatment in our hospital from January 2013 to August 2019. We used statistical methods to evaluate the safety of the operation and explore the timing of surgery and the factors influencing postoperative recovery of spinal cord function. The mean age of the 112 patients was 60.64±12.91 years. The Japanese Orthopaedic Association score and the American Spinal Injury Association motor score (AMS) of the 112 patients were significantly higher at final follow-up than at admission. No significant difference in recovery of spinal cord function was seen between the early operation group (≤4 days) and the late operation group (>4 days). Comparison of patients with a good prognosis vs a poor prognosis showed that age, intrahand muscle strength at admission, maximum spinal cord compression, maximum canal compromise, length of high-intensity signal in the spinal cord on sagittal T2-weighted magnetic resonance imaging, AMS, and American Spinal Injury Association injury grade D/C at admission had a significant effect on recovery of spinal cord function. Surgical treatment of ATCCS without fracture and dislocation is safe and effective. Age, admission AMS and American Spinal Injury Association impairment scale score, intrinsic hand muscle strength, maximum canal compromise, maximum spinal cord compression, and length of high-intensity signal in the spinal cord can be used to predict postoperative recovery of spinal cord function. [Orthopedics. 2022;45(6):325-332.].
Collapse
|
4
|
Kamei N, Nakanishi K, Nakamae T, Tamura T, Tsuchikawa Y, Moisakos T, Harada T, Maruyama T, Adachi N. Differences between spinal cord injury and cervical compressive myelopathy in intramedullary high-intensity lesions on T2-weighted magnetic resonance imaging: A retrospective study. Medicine (Baltimore) 2022; 101:e29982. [PMID: 36042590 PMCID: PMC9410606 DOI: 10.1097/md.0000000000029982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Increases in aging populations have raised the number of patients with cervical spinal cord injury (SCI) without fractures due to compression of the cervical spinal cord. In such patients, it is necessary to clarify whether SCI or cervical compressive myelopathy (CCM) is the cause of disability after trauma. This study aimed to clarify the differences in magnetic resonance imaging (MRI) features between SCI and CCM. Overall, 60 SCI patients and 60 CCM patients with intramedullary high-intensity lesions on T2-weighted MRI were included in this study. The longitudinal lengths of the intramedullary T2 high-intensity lesions were measured using sagittal MRI sections. Snake-eye appearance on axial sections was assessed as a characteristic finding of CCM. The T2 values of the high-intensity lesions and normal spinal cords at the first thoracic vertebra level were measured, and the contrast ratio was calculated using these values. The longitudinal length of T2 high-intensity lesions was significantly longer in SCI patients than in CCM patients. Snake-eye appearance was found in 26 of the 60 CCM patients, but not in SCI patients. On both the sagittal and axial images, the contrast ratio was significantly higher in the SCI group than in the CCM group. Based on these results, a diagnostic scale was created. This scale made it possible to distinguish between SCI and CCM with approximately 90% accuracy.
Collapse
Affiliation(s)
- Naosuke Kamei
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
- *Correspondence: Naosuke Kamei, Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan (e-mail: )
| | | | - Toshio Nakamae
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Takayuki Tamura
- Department of Clinical Support, Hiroshima University Hospital, Hiroshima, Japan
| | - Yuji Tsuchikawa
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Taiki Moisakos
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Takahiro Harada
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Toshiaki Maruyama
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Nobuo Adachi
- Department of Orthopaedic Surgery, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| |
Collapse
|
5
|
Risk Factors for Poor Prognosis of Spinal Cord Injury without Radiographic Abnormality Associated with Cervical Ossification of the Posterior Longitudinal Ligament. BIOMED RESEARCH INTERNATIONAL 2022; 2022:1572341. [PMID: 35224091 PMCID: PMC8872685 DOI: 10.1155/2022/1572341] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 02/04/2022] [Indexed: 01/16/2023]
Abstract
Purpose To investigate the factors associated with the prognosis of spinal cord injury without radiographic abnormality (SCIWORA) accompanied by cervical ossification of the posterior longitudinal ligament (C-OPLL). Methods We retrospectively investigated 287 patients with SCIWORA associated with C-OPLL, who were admitted within 30 days after trauma to our facility between August 2014 and August 2018. All patients were divided into the good or poor prognosis group. Patient demographics were analyzed. Besides, occupying ratio on CT and spinal cord high signal changes in MRI T2WI were measured and recorded. Multivariate linear regression was applied to analyze the correlation of prognosis with spinal cord high signal changes in MRI T2WI, cause of injury, and occupying ratio. Results Occupying ratio of ossification mass was 43.5 ± 10.7% in the poor prognosis group and 27.3 ± 7.7% in the good prognosis group. The occurrence rate of high signal changes in MRI T2WI was 84.2% in the poor prognosis group and 41.3% in the good prognosis group. Poor prognosis was correlated with high occupying ratio and spinal cord high signal changes in MRI T2WI. In the patient with SCIWORA associated with C-OPLL, ROC curve of occupying ratio showed 30% as a predictor for the poor prognosis. Among the 92 patients with occupying ratio ≤ 30%, poor prognosis was observed in 5 cases (5.4%), whereas in the 72 cases with occupying ratio > 30%, poor prognosis was seen in 33 cases (45.8%). Postoperative AIS grade at final follow-up in occupying ratio > 30% group was significantly worse. Conclusions Patients suffering from SCIWORA with C-OPLL have poor prognosis when they have higher occupying ratio of ossification mass and spinal cord high signal changes in MRI T2WI. The cut-off value of occupying ratio for predicting the poor prognosis was 30% in patients with SCIWORA associated with C-OPLL.
Collapse
|
6
|
Ramey WL, Reyes AA, Avila MJ, Hurlbert RJ, Chapman JR, Dumont TM. The Central Cord Score: A Novel Classification and Scoring System Specific to Acute Traumatic Central Cord Syndrome. World Neurosurg 2021; 156:e235-e242. [PMID: 34536617 DOI: 10.1016/j.wneu.2021.09.037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 09/07/2021] [Accepted: 09/08/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Acute traumatic central cord syndrome (ATCCS) is the most common form of spinal cord injury in the United States. Treatment remains controversial, which is a consequence of ATCCS having an inherently different natural history from conventional spinal cord injury, thus requiring a separate classification system. We devised a novel Central Cord Score (CCscore), which both guides treatment and tracks improvement over time with symptoms specific to ATCCS. METHODS Medical records of patients with a diagnosis of ATCCS were retrospectively reviewed at a single institution. The CCscore was devised based on signs, symptoms, and imaging findings we believed to be critical in assessing severity of ATCCS. Numeric values were assigned for distal upper extremity motor strength, upper extremity sensation, ambulatory status, magnetic resonance imaging cord signal, and urinary retention. RESULTS We identified 51 patients with follow-up data; there were 17 cases of mild injury (CCscore 1-5), 23 moderate cases (CCscore 6-10), and 11 severe cases (CCscore 11-15). Patients treated surgically had significantly greater improvement in upper extremity motor scores and total CCscore only up to 3 months. In terms of timing of surgery, patients treated <24 hours after injury had significantly improved upper extremity motor scores and overall CCscores at last follow-up of ≥3 months. CONCLUSIONS Based on these data and their alignment with past literature, the CCscore is able to objectively and specifically categorize the severity and outcome of ATCCS, which represents a step forward in the quest to determine the ultimate efficacy and timing of surgery for ATCCS.
Collapse
Affiliation(s)
- Wyatt L Ramey
- Department of Neurosurgery, Banner University Medical Center - Tucson, Tucson, Arizona, USA.
| | - Angelica Alvarez Reyes
- Department of Neurosurgery, Banner University Medical Center - Tucson, Tucson, Arizona, USA
| | - Mauricio J Avila
- Department of Neurosurgery, Banner University Medical Center - Tucson, Tucson, Arizona, USA
| | - R John Hurlbert
- Department of Neurosurgery, Banner University Medical Center - Tucson, Tucson, Arizona, USA
| | - Jens R Chapman
- Department of Neurosurgery, Swedish Neuroscience Institute, Seattle, Washington, USA
| | - Travis M Dumont
- Department of Neurosurgery, Banner University Medical Center - Tucson, Tucson, Arizona, USA
| |
Collapse
|
7
|
Machino M, Ando K, Kobayashi K, Nakashima H, Kanbara S, Ito S, Inoue T, Yamaguchi H, Koshimizu H, Ito K, Kato F, Ishiguro N, Imagama S. Postoperative changes in spinal cord signal intensity in patients with spinal cord injury without major bone injury: comparison between preoperative and postoperative magnetic resonance images. J Neurosurg Spine 2021; 34:259-266. [PMID: 33126220 DOI: 10.3171/2020.6.spine20761] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 06/19/2020] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Although increased signal intensity (ISI) on MRI is observed in patients with cervical spinal cord injury (SCI) without major bone injury, alterations in ISI have not been evaluated. The association between postoperative ISI and surgical outcomes remains unclear. This study elucidated whether or not the postoperative classification and alterations in MRI-based ISI of the spinal cord reflected the postoperative symptom severity and surgical outcomes in patients with SCI without major bone injury. METHODS One hundred consecutive patients with SCI without major bone injury (79 male and 21 female) with a mean age of 55 years (range 20-87 years) were included. All patients were treated with laminoplasty and underwent MRI pre- and postoperatively (mean 12.5 ± 0.8 months). ISI was classified into three groups on the basis of sagittal T2-weighted MRI: grade 0, none; grade 1, light (obscure); and grade 2, intense (bright). The neurological statuses were evaluated according to the Japanese Orthopaedic Association (JOA) scoring system and the American Spinal Injury Association Impairment Scale (AIS). RESULTS Preoperatively, 8 patients had grade 0 ISI, 49 had grade 1, and 43 had grade 2; and postoperatively, 20 patients had grade 0, 24 had grade 1, and 56 had grade 2. The postoperative JOA scores and recovery rate (RR) decreased significantly with increasing postoperative ISI grade. The postoperative ISI grade tended to increase with the postoperative AIS grade. Postoperative grade 2 ISI was observed in severely paralyzed patients. The postoperative ISI grade improved in 23 patients (23%), worsened in 25 (25%), and remained unchanged in 52 (52%). Patients with an improved ISI grade had a better RR than those with a worsened ISI grade. CONCLUSIONS Postoperative ISI reflected postoperative symptom severity and surgical outcomes. Alterations in ISI were seen postoperatively in 48 patients (48%) and were associated with surgical outcomes.
Collapse
Affiliation(s)
- Masaaki Machino
- 1Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine; and
| | - Kei Ando
- 1Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine; and
| | - Kazuyoshi Kobayashi
- 1Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine; and
| | - Hiroaki Nakashima
- 1Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine; and
| | - Shunsuke Kanbara
- 1Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine; and
| | - Sadayuki Ito
- 1Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine; and
| | - Taro Inoue
- 1Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine; and
| | - Hidetoshi Yamaguchi
- 1Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine; and
| | - Hiroyuki Koshimizu
- 1Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine; and
| | - Keigo Ito
- 2Department of Orthopedic Surgery, Chubu Rosai Hospital, Japan Organization of Occupational Health and Safety, Nagoya, Japan
| | - Fumihiko Kato
- 2Department of Orthopedic Surgery, Chubu Rosai Hospital, Japan Organization of Occupational Health and Safety, Nagoya, Japan
| | - Naoki Ishiguro
- 1Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine; and
| | - Shiro Imagama
- 1Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine; and
| |
Collapse
|
8
|
Qi C, Xia H, Miao D, Wang X, Li Z. The influence of timing of surgery in the outcome of spinal cord injury without radiographic abnormality (SCIWORA). J Orthop Surg Res 2020; 15:223. [PMID: 32546184 PMCID: PMC7298776 DOI: 10.1186/s13018-020-01743-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Accepted: 06/04/2020] [Indexed: 11/20/2022] Open
Abstract
Background Spinal cord injury without radiographic abnormality (SCIWORA) is a rare traumatic myelopathy. Although surgery is one of the most important treatments, the surgery for SCIWORA is controversial, especially the time of surgery is a topic of controversy. Here, we investigate the effects of difference in duration from injury to surgery on the outcome of SCIWORA. Methods This retrospective study was performed in all patients with spinal cord injury admitted to the Third Affiliated Hospital of Hebei Medical University from January 2013 to April 2017. Fifty-seven patients who met the study requirements were divided into 3 groups according to the duration from injury to surgery. Group A (surgery within 3 days of injury) had 18 patients, group B (surgery within 3–7 days) had 18 patients, and group C (surgery later than 7 days) had 21 patients. All the groups were compared with Mann–Whitney U test; the functional improvement of spinal cord was compared and analyzed using the ASIA sports score and ASIA Impairment Scale (AIS). Results There was a significant improvement in the long-term AIS (final follow-up) in all the 3 groups compared to before surgery. The final follow-up recovery rate of group C was worse than group A and group B. The curative effect of operation within 7 days was significantly better than the surgery done 7 days later. The recovery rate of group C was worse than group A and B. The ASIA sports score showed that recovery was quicker in the early stage and slow in the later stage. Conclusions The optimal schedule of surgical treatment was 3–7 days after injury, which can significantly improve the short-term and long-term follow-up effects. Longer the time to surgery from the time of injury, the worse was the prognosis.
Collapse
Affiliation(s)
- Can Qi
- Department of Orthopedics, The Third Affiliated Hospital of Hebei Medical University, 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, China
| | - Hehuan Xia
- Department of Orthopedics, The Third Affiliated Hospital of Hebei Medical University, 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, China
| | - Dechao Miao
- Department of Spinal Surgery, The Third Affiliated Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Xingui Wang
- Department of Orthopedics, The Third Affiliated Hospital of Hebei Medical University, 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, China
| | - Zengyan Li
- Department of Orthopedics, The Third Affiliated Hospital of Hebei Medical University, 139 Ziqiang Road, Shijiazhuang, 050051, Hebei, China.
| |
Collapse
|
9
|
Bailly N, Diotalevi L, Beauséjour MH, Wagnac É, Mac-Thiong JM, Petit Y. Numerical investigation of the relative effect of disc bulging and ligamentum flavum hypertrophy on the mechanism of central cord syndrome. Clin Biomech (Bristol, Avon) 2020; 74:58-65. [PMID: 32145670 DOI: 10.1016/j.clinbiomech.2020.02.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 02/07/2020] [Accepted: 02/13/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND The pathogenesis of the central cord syndrome is still unclear. While there is a consensus on hyperextension as the main traumatic mechanism leading to this condition, there is yet to be consensus in studies regarding the pathological features of the spine (intervertebral disc bulging or ligamentum flavum hypertrophy) that could contribute to clinical manifestations. METHODS A comprehensive finite element model of the cervical spine segment and spinal cord was used to simulate high-speed hyperextension. Four stenotic cases were modelled to study the effect of ligamentum flavum hypertrophy and intervertebral disc bulging on the von Mises stress and strain. FINDINGS During hyperextension, the downward displacement of the ligamentum flavum and a reduction of the spinal canal diameter (up to 17%) led to a dynamic compression of the cord. Ligamentum flavum hypertrophy was associated with stress and strain (peak of 0.011 Mpa and 0.24, respectively) in the lateral corticospinal tracts, which is consistent with the histologic pattern of the central cord syndrome. Linear intervertebral disc bulging alone led to a higher stress in the anterior and posterior funiculi (peak 0.029 Mpa). Combined with hypertrophic ligamentum flavum, it further increased the stress and strain in the corticospinal tracts and in the posterior horn (peak of 0.023 Mpa and 0.35, respectively). INTERPRETATION The stenotic typology and geometry greatly influence stress and strain distribution resulting from hyperextension. Ligamentum flavum hypertrophy is a main feature leading to central cord syndrome.
Collapse
Affiliation(s)
- Nicolas Bailly
- Department of Mechanical Engineering, École de technologie supérieure, 1100 Notre-Dame Street West, Montréal, Québec H3C 1K3, Canada; Research Center, Hôpital du Sacré-Cœur de Montréal, 5400 Gouin blvd, Montréal H4J 1C5, Québec, Canada; International Laboratory on Spine Imaging and Biomechanics (iLab-Spine), France
| | - Lucien Diotalevi
- Department of Mechanical Engineering, École de technologie supérieure, 1100 Notre-Dame Street West, Montréal, Québec H3C 1K3, Canada; Research Center, Hôpital du Sacré-Cœur de Montréal, 5400 Gouin blvd, Montréal H4J 1C5, Québec, Canada; International Laboratory on Spine Imaging and Biomechanics (iLab-Spine), France
| | - Marie-Hélène Beauséjour
- Department of Mechanical Engineering, École de technologie supérieure, 1100 Notre-Dame Street West, Montréal, Québec H3C 1K3, Canada; Research Center, Hôpital du Sacré-Cœur de Montréal, 5400 Gouin blvd, Montréal H4J 1C5, Québec, Canada; International Laboratory on Spine Imaging and Biomechanics (iLab-Spine), France; Laboratoire de Biomécanique Appliquée, UMRT24 IFSTTAR- Université de la Méditerranée, F-13916 Marseille cedex 20, France
| | - Éric Wagnac
- Department of Mechanical Engineering, École de technologie supérieure, 1100 Notre-Dame Street West, Montréal, Québec H3C 1K3, Canada; Research Center, Hôpital du Sacré-Cœur de Montréal, 5400 Gouin blvd, Montréal H4J 1C5, Québec, Canada; International Laboratory on Spine Imaging and Biomechanics (iLab-Spine), France
| | - Jean-Marc Mac-Thiong
- Research Center, Hôpital du Sacré-Cœur de Montréal, 5400 Gouin blvd, Montréal H4J 1C5, Québec, Canada; Department of Orthopaedic Surgery, Université de Montréal, P.O. box 6128, Station Centre-Ville, Montréal, Québec H3C 3J7, Canada
| | - Yvan Petit
- Department of Mechanical Engineering, École de technologie supérieure, 1100 Notre-Dame Street West, Montréal, Québec H3C 1K3, Canada; Research Center, Hôpital du Sacré-Cœur de Montréal, 5400 Gouin blvd, Montréal H4J 1C5, Québec, Canada; International Laboratory on Spine Imaging and Biomechanics (iLab-Spine), France.
| |
Collapse
|
10
|
Machino M, Ando K, Kobayashi K, Morozumi M, Tanaka S, Ito K, Kato F, Ishiguro N, Imagama S. Differences in clinical outcomes between traumatic cervical myelopathy and degenerative cervical myelopathy: A comparative study of cervical spinal cord injury without major bone injury and cervical spondylotic myelopathy. J Clin Neurosci 2019; 70:127-131. [PMID: 31427237 DOI: 10.1016/j.jocn.2019.08.054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 08/06/2019] [Indexed: 10/26/2022]
Abstract
A comparative study to examine the surgical outcomes of traumatic cervical myelopathy (TCM) patients was designed. The study aim was to compare the surgical outcomes between TCM and degenerative cervical myelopathy (DCM) and to characterize the preoperative symptoms and postoperative residual symptoms in TCM patients. One hundred consecutive patients with TCM (81 men, 19 women; mean age, 57.7 years; range, 31-79 years) and 100 consecutive patients with DCM (88 men, 12 women; mean age, 58.4 years; range, 36-78 years) were included in this study. All patients were treated by laminoplasty. The pre- and postoperative neurological statuses were evaluated according to the Japanese Orthopaedic Association (JOA) scoring system for cervical myelopathy. The recovery rate (RR) of each function was compared between the two groups. The mean preoperative JOA scores of motor function of the upper extremity in the TCM and DCM groups were 1.9 and 2.3, respectively (P < 0.01). After surgery, the mean RRs of motor function of the upper extremity in the TDM and DCM groups were 36.4% and 55.7%, respectively (P < 0.01) and in the lower extremity were 32.3% and 46.5%, respectively (P < 0.05). The RR for sensory function of the lower extremity was significantly lower in TCM patients than in DCM patients (39.6 vs 68.2, respectively; P < 0.0001). Motor function impairments of the upper and lower extremities and sensory function impairments of the lower extremities after surgery were more persistent in the TCM group than in the DCM group.
Collapse
Affiliation(s)
- Masaaki Machino
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kei Ando
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kazuyoshi Kobayashi
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Masayoshi Morozumi
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Satoshi Tanaka
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Keigo Ito
- Department of Orthopedic Surgery, Chubu Rosai Hospital, Japan Organization of Occupational Health and Safety, Nagoya, Japan
| | - Fumihiko Kato
- Department of Orthopedic Surgery, Chubu Rosai Hospital, Japan Organization of Occupational Health and Safety, Nagoya, Japan
| | - Naoki Ishiguro
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Shiro Imagama
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.
| |
Collapse
|
11
|
Kent M, Glass EN, Song RB, Warren JD, de Lahunta A. What Is Your Neurologic Diagnosis? J Am Vet Med Assoc 2019; 254:1049-1052. [PMID: 30986156 DOI: 10.2460/javma.254.9.1049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
12
|
Machino M, Ando K, Kobayashi K, Ota K, Morozumi M, Tanaka S, Ito K, Kato F, Ishiguro N, Imagama S. MR T2 image classification in adult patients of cervical spinal cord injury without radiographic abnormality: A predictor of surgical outcome. Clin Neurol Neurosurg 2018; 177:1-5. [PMID: 30579047 DOI: 10.1016/j.clineuro.2018.12.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 12/05/2018] [Accepted: 12/13/2018] [Indexed: 11/19/2022]
Abstract
OBJECTIVES Although patients with cervical spinal cord injury without radiographic abnormality (SCIWORA) present increased signal intensity (ISI) on magnetic resonance imaging (MRI), its degree has not been examined. This study evaluated the clinical effectiveness of MRI-based ISI in adult patients of SCIWORA. Its predictive value for symptom severity was also evaluated. PATIENTS AND METHODS One-hundred consecutive SCIWORA patients who had undergone expansive laminoplasty were enrolled. Among them, 79 were male and 21 were female. The mean age was 55 years (range 20-87). All patients underwent MRI in the acute phase, and ISI was classified into three groups based on sagittal T2-weighted MRI: Grade 0, none; Grade 1, light (obscure); and Grade 2, intense (bright). The pre- and postoperative neurological status was evaluated using the Japanese Orthopaedic Association scoring system for cervical myelopathy (JOA score) and the ASIA impairment scale (AIS). RESULTS Preoperative MRI showed Grade 0 in 8 patients, Grade 1 in 49 patients, and Grade 2 in 43 patients. There were no differences in age and gender among three groups. The pre- and postoperative JOA scores decreased significantly with an increasing ISI grade. The recovery rate of JOA score decreased with the ISI grade. The ISI grade tended to increase with the pre- and postoperative AIS grades. ISI Grade 2 on MRI was observed in severely paralyzed cases. CONCLUSIONS MRI-based ISI classification is correlated with preoperative symptom severity in adult patients with SCIWORA and can be a predictor of surgical outcome.
Collapse
Affiliation(s)
- Masaaki Machino
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kei Ando
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kazuyoshi Kobayashi
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kyotaro Ota
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Masayoshi Morozumi
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Satoshi Tanaka
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Keigo Ito
- Department of Orthopedic Surgery and Radiology, Chubu Rosai Hospital, Japan Organization of Occupational Health and Safety, Nagoya, Japan
| | - Fumihiko Kato
- Department of Orthopedic Surgery and Radiology, Chubu Rosai Hospital, Japan Organization of Occupational Health and Safety, Nagoya, Japan
| | - Naoki Ishiguro
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Shiro Imagama
- Department of Orthopedic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan.
| |
Collapse
|
13
|
Paquet J, Rivers CS, Kurban D, Finkelstein J, Tee JW, Noonan VK, Kwon BK, Hurlbert RJ, Christie S, Tsai EC, Ahn H, Drew B, Bailey CS, Fourney DR, Attabib N, Johnson MG, Fehlings MG, Parent S, Dvorak MF. The impact of spine stability on cervical spinal cord injury with respect to demographics, management, and outcome: a prospective cohort from a national spinal cord injury registry. Spine J 2018; 18:88-98. [PMID: 28673827 DOI: 10.1016/j.spinee.2017.06.032] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Revised: 06/13/2017] [Accepted: 06/26/2017] [Indexed: 02/03/2023]
Abstract
BACKGROUND CONTEXT Emergent surgery for patients with a traumatic spinal cord injury (SCI) is seen as the gold standard in acute management. However, optimal treatment for those with the clinical diagnosis of central cord syndrome (CCS) is less clear, and classic definitions of CCS do not identify a unique population of patients. PURPOSE The study aimed to test the authors' hypothesis that spine stability can identify a unique group of patients with regard to demographics, management, and outcomes, which classic CCS definitions do not. STUDY DESIGN/SETTING This is a prospective observational study. PATIENT SAMPLE The sample included participants with cervical SCI included in a prospective Canadian registry. OUTCOME MEASURES The outcome measures were initial hospitalization length of stay, change in total motor score from admission to discharge, and in-hospital mortality. METHODS Patients with cervical SCI from a prospective Canadian SCI registry were grouped into stable and unstable spine cohorts. Bivariate analyses were used to identify differences in demographic, injury, management, and outcomes. Multivariate analysis was used to better understand the impact of spine stability on motor score improvement. No conflicts of interest were identified. RESULTS Compared with those with an unstable spine, patients with cervical SCI and a stable spine were older (58.8 vs. 44.1 years, p<.0001), more likely male (86.4% vs. 76.1%, p=.0059), and have more medical comorbidities. Patients with stable spine cervical SCI were more likely to have sustained their injury by a fall (67.4% vs. 34.9%, p<.0001), and have high cervical (C1-C4; 58.5% vs. 43.3%, p=.0009) and less severe neurologic injuries (ASIA Impairment Scale C or D; 81.3% vs. 47.5%, p<.0001). Those with stable spine injuries were less likely to have surgery (67.6% vs. 92.6%, p<.0001), had shorter in-hospital lengths of stay (median 84.0 vs. 100.5 days, p=.0062), and higher total motor score change (20.7 vs. 19.4 points, p=.0014). Multivariate modeling revealed that neurologic severity of injury and spine stability were significantly related to motor score improvement; patients with stable spine injuries had more motor score improvement. CONCLUSIONS We propose that classification of stable cervical SCI is more clinically relevant than classic CCS classification as this group was found to be unique with regard to demographics, neurologic injury, management, and outcome, whereas classic CCS classifications do not . This classification can be used to assess optimal management in patients where it is less clear if and when surgery should be performed.
Collapse
Affiliation(s)
- Jérôme Paquet
- Laval University, 1401, 18e Rue, Sciences Neurologiques, Québec, QC G1J 1Z4, Canada.
| | - Carly S Rivers
- Rick Hansen Institute, 6400-818 West 10th Ave, Vancouver, BC V5Z 1M9, Canada
| | - Dilnur Kurban
- Rick Hansen Institute, 6400-818 West 10th Ave, Vancouver, BC V5Z 1M9, Canada
| | - Joel Finkelstein
- Sunnybrook Health Sciences Centre, 2075 Bayview Ave, Room MG 361, Toronto, ON M4N 3M5, Canada
| | - Jin W Tee
- Department of Neurosurgery, National Trauma Research Institute (NTRI), The Alfred Hospital, 55 Commercial Rd, Melbourne, VIC 3004, Australia
| | - Vanessa K Noonan
- Rick Hansen Institute, 6400-818 West 10th Ave, Vancouver, BC V5Z 1M9, Canada
| | - Brian K Kwon
- Vancouver Spine Surgery Institute, Department of Orthopaedics, University of British Columbia, International Collaboration on Repair Discoveries (ICORD), UBC, 818 West 10th Ave, Vancouver, BC V5Z 1M9, Canada
| | - R John Hurlbert
- Department of Clinical Neurosciences, University of Calgary, 12th Floor Foothills Hospital, 1403 29 St NW, Calgary, AB T2N 2T9, Canada
| | - Sean Christie
- Research Division of Neurosurgery, Dalhousie University, 1796 Summer St, Rm 3814, Halifax, NS B3H 3A7, Canada
| | - Eve C Tsai
- Department of Surgery, Division of Surgery, University of Ottawa, C2-1053 Carling Ave, Ottawa, ON K1Y 4E9, Canada
| | - Henry Ahn
- University of Toronto Spine Program, 55 Queen St East, Suite 1008, Toronto, ON M5C1R6 Canada
| | - Brian Drew
- Department of Orthopaedic Surgery, McMaster University, 237 Barton St West, Hamilton, ON L8L 2X2, Canada
| | - Christopher S Bailey
- Division of Orthopaedics, Department of Surgery, Schulich School of Medicine and Dentistry, University of Western Ontario, Room E4, 800 Commissioners Rd East, London, ON N6A 5W9, Canada
| | - Daryl R Fourney
- Division of Neurosurgery, University of Saskatchewan, Royal University Hospital, 103 Hospital Drive, Saskatoon, SK S7N 0W8, Canada
| | - Najmedden Attabib
- Dalhousie University, Horizon Health Network, Division of Neurosurgery Saint John Regional Hospital, P.O. Box 2100, Saint John, NB E2L4L2, Canada
| | - Michael G Johnson
- University of Manitoba, Department of Surgery, Orthopaedics and Neurosurgery, AD4-820 Sherbrook St, Winnipeg, MB, R3A 1R9, Canada
| | - Michael G Fehlings
- Department of Surgery, University of Toronto, 399 Bathurst St, Suite 4ww-449, Toronto, ON M5T 2S8, Canada
| | - Stefan Parent
- Professeur-Agrégé Département de Chirurgie Chaire Académique sur les Déformations de la Colonne, 5400 boul. Western Gouin, Montréal, QC H4L 1C5, Canada
| | - Marcel F Dvorak
- Vancouver Spine Surgery Institute, Department of Orthopaedics, University of British Columbia, 818 West 10th Ave, Vancouver, BC V5Z 1M9, Canada
| | | |
Collapse
|
14
|
Traumatic central cord syndrome after blunt cervical trauma: a pediatric case report. Spinal Cord Ser Cases 2016; 2:16014. [PMID: 28053758 DOI: 10.1038/scsandc.2016.14] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2015] [Revised: 04/21/2016] [Accepted: 05/13/2016] [Indexed: 11/09/2022] Open
Abstract
INTRODUCTION Traumatic central cord syndrome (CCS) is the most frequently encountered incomplete spinal cord injury (SCI). The patient presents weakness, which is usually greater in the upper extremities than in the lower extremities, secondary to damage to the cervical spinal cord and anatomic distribution of the corticospinal tracts. CCS is seen commonly after a hyperextension mechanism in older patients with spondylotic changes. There are few literature reports regarding CCS in pediatric patients. We present an unusual case of traumatic CCS in a pediatric patient. CASE PRESENTATION A 15-year-old male patient, victim of bullying at school, received cervical blunt trauma with a plastic tube. Within 3 h, the patient developed generalized weakness, which was greater in the upper extremities than in the lower extremities. Upon evaluation, the patient was found with marked upper extremity weakness compared to the lower extremities, with a Manual Muscle Test difference of 11 points. Imaging studies showed contusive changes in the C4-C7 central spinal cord. After rehabilitation therapies the patient gained 23 points in MMT at the day of discharge. DISCUSSION Different etiologies of CCS have previously been described in pediatric patients. However, this is the first case that describes a bullying event with cervical blunt trauma and subsequent CCS. In this case, history and physical examination, along with imaging studies, helped in the diagnosis, but it is important to be aware of the possibility of SCI without radiographic abnormalities, as it is common in the pediatric population. CCS occurs rarely in pediatric patients without underlying pathology. Physicians must be aware of the symptoms and clinical presentation in order to provide treatment and start early rehabilitation program.
Collapse
|
15
|
Ansari A. Lobster claw sign: a new sign depicting central cervical cord injury at or below that level. Case report. ROMANIAN NEUROSURGERY 2016. [DOI: 10.1515/romneu-2016-0066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Abstract
Traumatic cervical central cord spinal injuries (CSS) are now more readily recognized both clinically and on radiolgical scans. In this article, we introduce a lobster claw sign due to a particular positionin
Collapse
|
16
|
Delayed Magnetic Resonance Imaging in Patients With Cervical Spinal Cord Injury Without Radiographic Abnormality. Spine (Phila Pa 1976) 2016; 41:E981-E986. [PMID: 26890959 DOI: 10.1097/brs.0000000000001505] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN A prospective imaging study to develop diagnostic criteria. OBJECTIVE The aim of this study was to investigate image findings on delayed magnetic resonance imaging (MRI) after the acute phase of spinal cord injury without radiographic abnormality (SCIWORA) and their relationship with symptom severity. SUMMARY OF BACKGROUND DATA MRI is used to diagnose acute neurological injury, with increased signal intensity (ISI) and prevertebral hyperintensity (PVH) often seen in patients with SCIWORA; however, changes after the acute phase are unclear. METHODS We included 68 patients diagnosed with SCIWORA within 48 hours of injury. We then compared their acute (within 2 days) and delayed (after 2 weeks) MRI images. ISI grade (0-3) and ISI and PVH ranges (relative to the C3 vertebral height) were measured. Neurological status at admission and 2 weeks after injury was assessed by the Japanese Orthopaedic Association scoring system for cervical myelopathy (JOA score) and the American Spinal Injury Association impairment scale. RESULTS For acute MRI, the rates of grade 0, 1, and 2 ISI were 4, 54, and 10 patients, respectively. For delayed MRI, the rates of grade 0, 1, and 2 ISI changed to 3, 31, and 34 patients, respectively. ISI ranges reduced in delayed MRI, but there was no significance. PVH ranges were 3.0 ± 1.7 in acute MRI, and reduced to 1.3 ± 0.9 with significant difference (P < 0.001). There were significant negative correlations with the JOA score for ISI grades on delayed MRI only (r = -0.49). However, there were significant negative correlations with the JOA score for the PVH range on both the acute (r = -0.55) and delayed (r = -0.46) MRI. CONCLUSION When comparing acute and delayed MRI, there were significant differences in ISI and PVH findings. Delayed MRI also reflected the clinical symptom severity, giving useful information about the state of the spinal cord. LEVEL OF EVIDENCE 3.
Collapse
|
17
|
Zohrabian VM, Parker L, Harrop JS, Vaccaro AR, Marino RJ, Flanders AE. Can anatomic level of injury on MRI predict neurological level in acute cervical spinal cord injury? Br J Neurosurg 2015; 30:204-10. [PMID: 26168300 DOI: 10.3109/02688697.2015.1056089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Determining neurological level of injury (NLI) is of paramount importance after spinal cord injury (SCI), although its accuracy depends upon the reliability of the neurologic examination. Here, we determine if anatomic location of cervical cord injury by MRI (MRI level of injury) can predict NLI in the acute traumatic setting. METHODS A retrospective review was undertaken of SCI patients with macroscopic evidence of cervical cord injury from non-penetrating trauma, all of whom had undergone cervical spine MRI and complete neurologic testing. The recorded MRI information included cord lesion type (intra-axial edema, hemorrhage) and MRI locations of upper and lower lesion boundary, as well as lesion epicenter. Pearson correlation and Bland-Altman analyses were used to assess the relationship between MRI levels of injury and NLI. RESULTS All five MRI parameters, namely (1) upper and (2) lower boundaries of cord edema, (3) lesion epicenter, and (4) upper and (5) lower boundaries of cord hemorrhage demonstrated statistically significant, positive correlations with NLI. The MRI locations of upper and lower boundary of hemorrhage were found to have the strongest correlation with NLI (r = 0.72 and 0.61, respectively; p < 0.01). A weaker (low to moderate) correlation existed between lower boundary of cord edema and NLI (r = 0.30; p < 0.01). Upper boundary of cord hemorrhage on MRI demonstrated the best agreement with NLI (mean difference 0.03 ± 0.73; p < 0.01) by Bland-Altman analysis. CONCLUSIONS MRI level of injury has the potential to serve as a surrogate for NLI in instances where the neurologic examination is either unavailable or unreliable.
Collapse
Affiliation(s)
- Vahe M Zohrabian
- a Department of Diagnostic Radiology , Yale University School of Medicine , New Haven , USA
| | - Laurence Parker
- b Department of Radiology , Thomas Jefferson University Hospital , PA , USA
| | - James S Harrop
- c Department of Neurological Surgery , Thomas Jefferson University Hospital , PA , USA
| | - Alex R Vaccaro
- d Department of Orthopaedic Surgery , The Rothman Institute, Thomas Jefferson University Hospital , PA , USA
| | - Ralph J Marino
- e Department of Rehabilitation Medicine , Regional Spinal Cord Injury Centre of the Delaware Valley, Thomas Jefferson University Hospital , PA , USA
| | - Adam E Flanders
- b Department of Radiology , Thomas Jefferson University Hospital , PA , USA
| |
Collapse
|
18
|
Epstein NE, Hollingsworth R. Diagnosis and management of traumatic cervical central spinal cord injury: A review. Surg Neurol Int 2015; 6:S140-53. [PMID: 26005576 PMCID: PMC4431046 DOI: 10.4103/2152-7806.156552] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2014] [Accepted: 12/30/2014] [Indexed: 12/02/2022] Open
Abstract
Background: The classical clinical presentation, neuroradiographic features, and conservative vs. surgical management of traumatic cervical central spinal cord (CSS) injury remain controversial. Methods: CSS injuries, occurring in approximately 9.2% of all cord injuries, are usually attributed to significant hyperextension trauma combined with congenital/acquired cervical stenosis/spondylosis. Patients typically present with greater motor deficits in the upper vs. lower extremities accompanied by patchy sensory loss. T2-weighted magnetic resonance (MR) scans usually show hyperintense T2 intramedullary signals reflecting acute edema along with ligamentous injury, while noncontrast computed tomography (CT) studies typically show no attendant bony pathology (e.g. no fracture, dislocation). Results: CSS constitute only a small percentage of all traumatic spinal cord injuries. Aarabi et al. found CSS patients averaged 58.3 years of age, 83% were male and 52.4% involved accidents/falls in patients with narrowed spinal canals (average 5.6 mm); their average American Spinal Injury Association (ASIA) motor score was 63.8, and most pathology was at the C3-C4 and C4-C5 levels (71%). Surgery was performed within 24 h (9 patients), 24–48 h (10 patients), or after 48 h (23 patients). In the Brodell et al. study of 16,134 patients with CSS, 39.7% had surgery. In the Gu et al. series, those with CSS and stenosis/ossification of the posterior longitudinal ligament (OPLL) exhibited better outcomes following laminoplasty. Conclusions: Recognizing the unique features of CSS is critical, as the clinical, neuroradiological, and management strategies (e.g. conservative vs. surgical management: early vs. late) differ from those utilized for other spinal cord trauma. Increased T2-weighted MR images best document CSS, while CT studies confirm the absence of fracture/dislocation.
Collapse
Affiliation(s)
- Nancy E Epstein
- Department of NeuroScience, Winthrop University Hospital, Mineola, NY 11501, USA
| | - Renee Hollingsworth
- Department of NeuroScience, Winthrop University Hospital, Mineola, NY 11501, USA
| |
Collapse
|
19
|
Thompson C, Gonsalves JF, Welsh D. Hyperextension injury of the cervical spine with central cord syndrome. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2014; 24:195-202. [PMID: 25077941 DOI: 10.1007/s00586-014-3432-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Revised: 06/21/2014] [Accepted: 06/21/2014] [Indexed: 11/25/2022]
Abstract
PURPOSE Traumatic central cord syndrome (TCCS) is the most commonly encountered type of incomplete spinal cord injury. TCCS typically occurs in patients over the age of 50 with a narrow spinal canal and follows an acute hyperextension injury of the cervical spine. Here, we report on the demographics of TCCS patients, their clinical course and outcomes, and the factors that may have influenced these outcomes. METHODS We conducted a retrospective folder review of patients who presented to our facility between January 2004 and December 2008 following hyperextension injury of the cervical spine and with the clinical manifestations of a central cord syndrome. Patient details were obtained from the acute spinal cord injury register at Groote Schuur Hospital and the patient folders, radiographs and magnetic resonance imaging films were reviewed. Predetermined data points were identified, tabulated and analysed, with only information from the injury-related admission being included. RESULTS An ASIA motor score of ≥60 on admission or discharge correlated with an 80 % chance of being able to walk at discharge from hospital. An ASIA motor score of ≤50 on admission correlated with an 80 % chance of not walking at discharge. An ASIA motor score of ≤50 at discharge meant a patient was not only unable to walk, but required placement in a spinal injury rehabilitation centre. Further, if a patient had a cervical spinal canal diameter of ≥8 mm they had a 50 % chance of clinical improvement and nearly 80 % chance of a functional outcome. CONCLUSION The Groote Schuur Hospital patient population differs from the international norm, particularly with respect to age and mechanism of injury. The ASIA motor score and cervical spine canal diameter proved to be useful predictors of outcome. Within our patient group, timing of surgery did not appear to influence the outcome.
Collapse
Affiliation(s)
- Crispin Thompson
- Division of Neurosurgery, Groote Schuur Hospital, Faculty of Health Sciences, University of Cape Town, H53 Old Main Building, Main Road, Observatory, Cape Town, 7295, South Africa,
| | | | | |
Collapse
|
20
|
Molliqaj G, Payer M, Schaller K, Tessitore E. Acute traumatic central cord syndrome: A comprehensive review. Neurochirurgie 2014; 60:5-11. [DOI: 10.1016/j.neuchi.2013.12.002] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2013] [Revised: 12/02/2013] [Accepted: 12/08/2013] [Indexed: 11/15/2022]
|
21
|
|
22
|
Aarabi B, Hadley MN, Dhall SS, Gelb DE, Hurlbert RJ, Rozzelle CJ, Ryken TC, Theodore N, Walters BC. Management of Acute Traumatic Central Cord Syndrome (ATCCS). Neurosurgery 2013; 72 Suppl 2:195-204. [DOI: 10.1227/neu.0b013e318276f64b] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- Bizhan Aarabi
- Department of Neurosurgery, and University of Maryland, Baltimore, Maryland
| | - Mark N. Hadley
- Division of Neurological Surgery, and Children's Hospital of Alabama, University of Alabama at Birmingham, Birmingham, Alabama
| | - Sanjay S. Dhall
- Department of Neurosurgery, Emory University, Atlanta, Georgia
| | - Daniel E. Gelb
- Department of Orthopaedics, University of Maryland, Baltimore, Maryland
| | - R. John Hurlbert
- Department of Clinical Neurosciences, University of Calgary Spine Program, Faculty of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Curtis J. Rozzelle
- Division of Neurological Surgery, Children's Hospital of Alabama, University of Alabama at Birmingham, Birmingham, Alabama
| | - Timothy C. Ryken
- Iowa Spine & Brain Institute, University of Iowa, Waterloo/Iowa City, Iowa
| | - Nicholas Theodore
- Division of Neurological Surgery, Barrow Neurological Institute, Phoenix, Arizona
| | - Beverly C. Walters
- Division of Neurological Surgery, and Children's Hospital of Alabama, University of Alabama at Birmingham, Birmingham, Alabama
- Department of Neurosciences, Inova Health System, Falls Church, Virginia
| |
Collapse
|
23
|
Can magnetic resonance imaging reflect the prognosis in patients of cervical spinal cord injury without radiographic abnormality? Spine (Phila Pa 1976) 2011; 36:E1568-72. [PMID: 21289591 DOI: 10.1097/brs.0b013e31821273c0] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN This is a prospective imaging study of adult patients with cervical spinal cord injury without radiographic abnormality (SCIWORA). OBJECTIVE The purpose of this study was to investigate the occurrence rate of intramedullary high-signal intensity (increased signal intensity [ISI]) and prevertebral hyperintensity (PVH) in patients with SCIWORA, and examine their relationship to symptom severity and surgical outcome. SUMMARY OF BACKGROUND DATA SCIWORA is accompanied by the presence of neurologic symptoms in the absence of positive radiographic findings before the emergence of magnetic resonance imaging (MRI). There are few reports regarding the image features on MRI in these patients. METHODS One-hundred consecutive patients with SCIWORA who had undergone expansive laminoplasty were enrolled. There were 79 men and 21 women; the mean age was 55 years (range, 16-87 years). All patients underwent functional x-ray and MRI in the acute phase. On MR T2-weighted imaging sagittal view, occurrence of ISI and PVH was evaluated. Range of ISI and PVH was measured relative to C3 vertebral height. Japanese Orthopaedic Association (JOA) scoring system for cervical myelopathy (JOA score), it's recovery rate, and ASIA impairment scale were used to evaluate neurological status. RESULTS ISI was observed in 92 patients and PVH in 90 patients on MRI preoperatively. The range of ISI and PVH tended to increase with scores on the preoperative ASIA scale. ISI and PVH were seen in all patients with ASIA A and B. There was a significant negative correlation between the range of ISI and preoperative JOA score. A significant negative correlation between the range of ISI and recovery rate of JOA score was also seen. CONCLUSION ISI and PVH occurred in more than 90% of patients with SCIWORA. The range of ISI significantly reflected symptom severity and prognosis for neurologic outcome.
Collapse
|
24
|
Rust CL, Ching AC, Hart RA. Dropped-head syndrome resulting from injury to the central spinal cord at the upper cervical level. ACTA ACUST UNITED AC 2011; 93:503-6. [DOI: 10.1302/0301-620x.93b4.26107] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
There are many causes of paraspinal muscle weakness which give rise to the dropped-head syndrome. In the upper cervical spine the central portion of the spinal cord innervates the cervical paraspinal muscles. Dropped-head syndrome resulting from injury to the central spinal cord at this level has not previously been described. We report two patients who were treated acutely for this condition. Both presented with weakness in the upper limbs and paraspinal cervical musculature after a fracture of C2. Despite improvement in the strength of the upper limbs, the paraspinal muscle weakness persisted in both patients. One ultimately underwent cervicothoracic fusion to treat her dropped-head syndrome. While the cause of the dropped-head syndrome cannot be definitively ascribed to the injuries to the spinal cord, this pattern is consistent with the known patho-anatomical mechanisms of both injury to the central spinal cord and dropped-head syndrome.
Collapse
Affiliation(s)
- C. L. Rust
- Department of Orthopaedics and Rehabilitation, Oregon Health and Science University, 3181 SW Sam Jackson Park Road, OP31, Portland, Oregon 97239, USA
| | - A. C. Ching
- Department of Orthopaedics and Rehabilitation, Oregon Health and Science University, 3181 SW Sam Jackson Park Road, OP31, Portland, Oregon 97239, USA
| | - R. A. Hart
- Department of Orthopaedics and Rehabilitation, Oregon Health and Science University, 3181 SW Sam Jackson Park Road, OP31, Portland, Oregon 97239, USA
| |
Collapse
|
25
|
Aarabi B, Alexander M, Mirvis SE, Shanmuganathan K, Chesler D, Maulucci C, Iguchi M, Aresco C, Blacklock T. Predictors of outcome in acute traumatic central cord syndrome due to spinal stenosis. J Neurosurg Spine 2011; 14:122-30. [DOI: 10.3171/2010.9.spine09922] [Citation(s) in RCA: 89] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Object
The objective of this study was to elucidate the relationship between admission demographic data, validated injury severity measures on imaging studies, and clinical indicators on the American Spinal Injury Association (ASIA) motor score, Functional Independence Measure (FIM), manual dexterity, and dysesthetic pain at least 12 months after surgery for acute traumatic central cord syndrome (ATCCS) due to spinal stenosis.
Methods
Over a 100-month period (January 2000 to April 2008), of 211 patients treated for ATCCS, 59 cases were due to spinal stenosis, and these patients underwent surgical decompression. Five of these patients died, 2 were lost to follow-up, 10 were not eligible for the study, and the remaining 42 were followed for at least 12 months.
Results
In the cohort of 42 patients, mean age was 58.3 years, 83% of the patients were men, and 52.4% of the accidents were due to falls. Mean admission ASIA motor score was 63.8 (upper extremities score, 25.8 and lower extremities score, 39.8), the spinal cord was most frequently compressed at skeletal segments C3–4 and C4–5 (71%), mean midsagittal diameter at the point of maximum compression was 5.6 mm, maximum canal compromise (MCC) was 50.5%, maximum spinal cord compression was 16.5%, and length of parenchymal damage on T2-weighted MR imaging was 29.4 mm. Time after injury until surgery was within 24 hours in 9 patients, 24–48 hours in 10 patients, and more than 48 hours in 23 patients. At the 1-year follow-up, the mean ASIA motor score was 94.1 (upper extremities score, 45.7 and lower extremities score, 47.6), FIM was 111.1, manual dexterity was 64.4% of baseline, and pain level was 3.5. Stepwise regression analysis of 10 independent variables indicated significant relationships between ASIA motor score at follow-up and admission ASIA motor score (p = 0.003), MCC (p = 0.02), and midsagittal diameter (p = 0.02); FIM and admission ASIA motor score (p = 0.03), MCC (p = 0.02), and age (p = 0.02); manual dexterity and admission ASIA motor score (p = 0.0002) and length of parenchymal damage on T2-weighted MR imaging (p = 0.002); and pain level and age (p = 0.02) and length of parenchymal lesion on T2-weighted MR imaging (p = 0.04).
Conclusions
The main indicators of long-term ASIA motor score, FIM, manual dexterity, and dysesthetic pain were admission ASIA motor score, midsagittal diameter, MCC, length of parenchymal damage on T2-weighted MR imaging, and age, but different domains of outcome were determined by different predictors.
Collapse
|
26
|
Stevens EA, Marsh R, Wilson JA, Sweasey TA, Branch CL, Powers AK. A review of surgical intervention in the setting of traumatic central cord syndrome. Spine J 2010; 10:874-80. [PMID: 20869001 DOI: 10.1016/j.spinee.2010.07.388] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2009] [Revised: 06/14/2010] [Accepted: 07/26/2010] [Indexed: 02/03/2023]
Abstract
BACKGROUND CONTEXT Surgical treatment in the setting of central cord syndrome (CCS) has become safer since Schneider's original description. It is generally accepted that a decompressive surgical intervention is a valid treatment option in a patient with CCS and radiographic evidence of spinal cord compression. The optimal timing of surgical intervention for CCS remains controversial. PURPOSE To review a single institution's experience managing CCS, with particular emphasis on surgical versus medical management, timing of surgery, neurologic outcomes, hospital length of stay, and complications. STUDY DESIGN Retrospective review. PATIENT SAMPLE One hundred twenty-six patients diagnosed with CCS were treated at Wake Forest University Baptist Medical Center between June 1985 and September 2006. OUTCOME MEASURES Neurological outcomes were measured using the Frankel grading scale. Other outcome measures included hospital and intensive care unit (ICU) length of stay and complication profiles. METHODS A retrospective chart review was performed on patients admitted to Wake Forest University Baptist Medical Center with the diagnosis of traumatic central cord injury from June 1985 to September 2006 with institutional review board approval. Neurologic status was recorded on presentation and at maximum follow-up using the Frankel classification. The surgical cohort was stratified into three subgroups with regard to the timing of surgical intervention after injury: surgery less than 24 hours after injury, surgery greater than 24 hours after injury but during the initial admission, and delayed operative intervention on a second hospital admission. Other variables collected included ICU and hospital length of stay and complication profiles. Data analyses were performed using SPSS (SPSS, Chicago, IL, USA) and Excel 2002 (Microsoft, Seattle, WA, USA). RESULTS A total of 126 patients treated for CCS were reviewed. Sixty-seven patients received surgery compared with 59 patients managed nonoperatively. Of those managed operatively, 16 patients received surgery within 24 hours of the time of injury. There were 34 patients who received surgery greater than 24 hours after the time of injury but during their initial admission with a mean time to surgery of 6.4 days (5-52 days). There were 17 patients who received their operation on a second hospital admission with a mean time interval of 137 days between injury and surgery (3-209). Mean follow-up was 32 months (1-210 months). An improvement in Frankel grade was seen in the overall operative cohort compared with those patients who received medical management alone. No statistically significant difference in neurologic outcome using Frankel grades was identified between the surgical subgroups with regard to timing of surgery. A trend toward decreased length of stay was seen in the surgical subgroup that received surgery during their initial admission. No statistically significant difference was identified between complication rates for the operative and nonoperative groups; however, a trend toward fewer complications and deaths was seen in those who received surgery in the first 24 hours or during the initial hospitalization. CONCLUSIONS Surgical treatment in the setting of CCS has become safer since Schneider's original description. Acknowledging its numerous limitations, this retrospective study supports surgical intervention in the setting of CCS as a safe effective management option. Improved Frankel grades were identified in those patients managed surgically compared with those receiving medical management alone. The data further shed light on the safety and potential benefits of early operative intervention for acute CCS compared with delayed surgical treatment. A prospective randomized controlled trial is needed to definitively compare surgical versus medical management and/or early versus delayed surgical treatment in the setting of traumatic CCS.
Collapse
|
27
|
Diagnostic criteria of traumatic central cord syndrome. Part 2: A Questionnaire Survey among Spine Specialists. Spinal Cord 2010; 48:657-63. [DOI: 10.1038/sc.2010.72] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
|
28
|
Diagnostic criteria of traumatic central cord syndrome. Part 1: A systematic review of clinical descriptors and scores. Spinal Cord 2010; 48:652-6. [DOI: 10.1038/sc.2009.155] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
29
|
Yadla S, Klimo Jr P, Harrop J. Traumatic Central Cord Syndrome: Etiology, Management, and Outcomes. Top Spinal Cord Inj Rehabil 2010. [DOI: 10.1310/sci1503-73] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
|
30
|
|
31
|
Abstract
Central cord syndrome is the most common type of incomplete spinal cord injury. This syndrome most often occurs in older persons with underlying cervical spondylosis caused by a hyperextension mechanism. It also occurs in younger persons who sustain trauma to the cervical spine and, less commonly, as a result of nontraumatic causes. The upper extremities are more affected than the lower extremities, with motor function more severely impaired than sensory function. Central cord syndrome presents a spectrum, from weakness limited to the hands and forearms with sensory preservation, to compete quadriparesis with sacral sparing as the only evidence of incomplete spinal cord injury. Historically, treatment has been nonsurgical, but recovery is often incomplete. Early surgical treatment of central cord syndrome remains controversial. However, recent studies have shown benefits, particularly of early surgery to decompress the spinal cord in patients with pathologic conditions revealed by radiography or MRI.
Collapse
|
32
|
Chen L, Yang H, Yang T, Xu Y, Bao Z, Tang T. Effectiveness of surgical treatment for traumatic central cord syndrome. J Neurosurg Spine 2009; 10:3-8. [PMID: 19119925 DOI: 10.3171/2008.9.spi0822] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECT The authors undertook a study in patients with traumatic central cord syndrome (TCCS) who underwent surgical intervention. They retrospectively assessed the motor score improvement and functional status and identified prognostic predictors of improvement. METHODS Between March 1999 and May 2004, 49 patients with TCCS were surgically treated. Motor scores were collected at admission and follow-up using the American Spinal Injury Association (ASIA) Impairment Scale. The 36-Item Short Form Health Survey (SF-36) was administered. Other parameters including walking index, spasticity, bladder management, and neuropathic pain scores were recorded. Patients were asked to assess their level of satisfaction with their final symptoms. RESULTS The average ASIA score, converted into numeric values, was increased from 54.9 at admission to 81.9 and 89.6 at 6 months and final follow-up, respectively. Significant improvement of ASIA score was achieved within the first 6 months of surgery. No significant difference was found between patients who underwent surgery within 4 days of injury or after 4 days of injury, adopting different approaches (anterior, posterior, or a combination), or with different pathological entities (acute disc herniation, fracture or dislocation, or multilevel degeneration). The ASIA score improvement had a positive correlation with the age at injury (r = 0.505, p = 0.023). The SF-36 data at 6 months and final follow-up were not as satisfactory as the improvement in ASIA scores, and almost one-third of patients expressed dissatisfaction with their final symptoms. For patients who were older than 65 years at injury, the mean follow-up Walking Index for Spinal Cord Injury (WISCI) score was statistically lower than it was in younger patients. The presence of spasticity or neuropathic pain at follow-up was not related to age, sex, ASIA motor score, or WISCI outcome. CONCLUSIONS Surgical intervention can be safely applied in patients with TCCS. Significant improvement of ASIA score was achieved during the first 6-month period of follow-up. Factors including type of lesion, timing of surgery within or after 4 days of injury, and surgical approach were not significantly associated with final ASIA score. The improvement in the ASIA motor score was positively correlated with age at injury. No significant correlation was found between or among the presence of spasticity, neuropathic pain, and ASIA score at final visit. Almost one-third of patients were not satisfied with their final symptoms.
Collapse
Affiliation(s)
- Liang Chen
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Suzhou University, Suzhou, People's Republic of China
| | | | | | | | | | | |
Collapse
|
33
|
Subaxial injury classification system to determine the surgical approach for subaxial cervical spine injuries. CURRENT ORTHOPAEDIC PRACTICE 2008. [DOI: 10.1097/bco.0b013e3282fa74b8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
34
|
Abstract
Approximately 30,000 spinal injuries occur in the United States every year. Injuries to the spine and its contents affect predominately young, healthy individuals and are a major cause of disability, with significant socioeconomic consequences. The main cause for spinal injuries is blunt trauma, most commonly caused by motor vehicle accidents, followed by falls and sport injuries. Already, in the initial evaluation of patients who have blunt trauma, multislice CT with two-dimensional (and threedimensional) reformatting is the method of choice. The liberal use of MR imaging is recommended to assess for injuries to soft tissue, the spine and its contents, intervertebral discs, and ligaments.
Collapse
Affiliation(s)
- Pia C Sundgren
- Department of Radiology, University of Michigan Health Systems, 1500 East Medical Center Drive, Ann Arbor, MI 48104, USA.
| | | | | |
Collapse
|