Severe cervical myelopathy: approaches and postoperative evaluation / Mielopatia cervical grave: vias de acesso e avaliação pós-operatória / Mielopatía cervical grave: vías de acceso y evaluación postoperatoria

ABSTRACT Objectives: To evaluate and compare the clinical evolution of surgical approaches used in patients with severe cervical myelopathy. Methods: Retrospective observational study in which 19 patients with myelopathy who underwent surgery were evaluated. Neurological assessments using the Frankel scale were conducted both preoperatively and one year following surgery, and the modified Japanese Orthopedic Association (JOA), Nurick, and Visual Analog Scale for pain (VAS) questionnaires were applied 1 year after the surgical procedure. Results: 89% of the participants were male and the average age was 63.9 years. No patient had postoperative neurological worsening, 12 patients (63.16%) had mild pain, and seven (36.84%) had moderate pain. The group with degenerative disease showed neurological improvement after surgery and the exclusively anterior approach was used in 84% of the cases, the exclusively posterior approach in 10% of the cases, and the dual approach in 6% of the cases. Conclusion: Surgical treatment has good results for inhibiting the unfavorable natural evolution of myelopathy within 1 year following surgery and promotes neurological improvement in degenerative cases, making it possible to use the anterior access route in most cases. Level of evidence III; Retrospective Study.

RESUMO Objetivos: Avaliar a evolução clínica em comparação com as vias de acesso cirúrgico em pacientes com mielopatia cervical grave. Métodos: Estudo observacional retrospectivo no qual foram avaliados 19 pacientes com mielopatia submetidos à cirurgia. Foram aplicados o questionário da Japanese Orthopedic Association (JOA) modificado, a Escala de Nurick e a Escala Visual Analógica (EVA) da dor um ano depois do procedimento cirúrgico e realizada avaliação neurológica pré-operatória e após um ano da cirurgia com a Escala de Frankel. Resultados: Os participantes eram 89% do sexo masculino e a média de idade foi de 63,9 anos. Nenhum paciente apresentou piora neurológica pós-operatória, 12 pacientes (63,16%) apresentaram dor leve e sete (36,84%) dor moderada. O grupo com doença degenerativa apresentou melhora neurológica depois da cirurgia e a via de acesso anterior exclusiva foi utilizada em 84% dos casos, 10% tiveram acesso exclusivamente por via posterior e 6% tiveram acesso com dupla via. Conclusões: O tratamento cirúrgico apresenta bons resultados para inibir a evolução natural desfavorável da mielopatia no período de um ano depois da cirurgia e promove melhora neurológica nos casos degenerativos, sendo possível a utilização da via de acesso anterior na maior parte dos casos. Nível de evidencia III; Estudo Retrospectivo.

RESUMEN Objetivos: Evaluar la evolución clínica en comparación con las vías de acceso quirúrgico en pacientes con mielopatía cervical severa. Métodos: Estudio observacional retrospectivo en el que se evaluaron 19 pacientes con mielopatía intervenidos quirúrgicamente. Se aplicó el cuestionario modificado de la Japanese Orthopedic Association (JOA), la escala de Nurick y la Escala Visual Analógica (EVA) del dolor 1 año después de la intervención quirúrgica y se realizó la evaluación neurológica preoperatoria y un año después de la cirugía utilizando la Escala de Frankel. Resultados: El 89% de los participantes eran hombres y la edad promedio era de 63,9 años. Ningún paciente presentó empeoramiento neurológico postoperatorio, 12 pacientes (63,16%) presentaron dolor leve y siete (36,84%) dolor moderado. El grupo con enfermedad degenerativa presentó mejoría neurológica tras la cirugía y en el 84% de los casos se utilizó la vía de acceso anterior exclusiva, el 10% la vía posterior exclusiva y el 6% la vía doble. Conclusión: El tratamiento quirúrgico presenta buenos resultados al inhibir la evolución natural desfavorable de la mielopatía en el período de un año después de la cirugía y promueve la mejoría neurológica en los casos degenerativos, posibilitando el uso de la vía de acceso anterior en la mayoría de los casos. Nivel de evidencia III; Estudio Retrospectivo.

Pattern recognition approach and clinico-radiological evaluation of compressive myelopathies at a tertiary care hospital

Background: Neuroimaging is indicated in most instances of new-onset myelopathy for clinico-radiological correlation in terms of diagnosis, recovery, and prediction of recurrence. Aim: This study was conducted to study the clinical profile of cases of Compressive Myelopathy and the pattern of spinal cord involvement, also to compare the sites of localisation of clinical diagnosis with MRI diagnosis. Methodology: The present study was a prospective study involving 30 patients. Patients with clinical suspicion of spinal cord disease of age group 20-80 years were included as study participants. The primary pulse sequences included T1 and T2 weighted images on MRI, the location of the lesion, its margins, signal intensity on both T1 and T2 weighted images was noted. Results: The majority of 53.33% of participants were aged between 51 to 60 years. Difficulty in walking was observed in 97% of participants. Men were more often affected than women. Cervical spondylosis was the commonest cause of compressive myelopathy in 57%. A most common pattern of spinal cord involvement was combined Anterior + Posterior cord involvement. The cervical site of localisation (54%) was the commonest followed by the thoracic and lumbar spinal cord. Conclusion: Myelopathies have male preponderance. The commonest cause of compressive myelopathy was Cervical spondylosis. Anterior plus posterior cord syndrome was the commonest pattern seen, followed by posterior cord syndrome, anterior cord syndrome being the least observed. MRI correlates well with a clinical diagnosis and is useful in suggesting the location of the lesion.

A Study on Etiological Profile of Non-Compressive Myelopathies in a Tertiary Care Hospital in Central Tamilnadu

Introduction: Non compressive myelopathy is defined as“spinal cord dysfunction in the absence of clinico-radiologicalevidence of spinal cord compression.” It can result fromdemyelinating, infectious, autoimmune, vascular, degenerativeand metabolic disorders in the absence of demonstrablecompression by imaging techniques. We aimed in analyzingthe etiological profile of non-compressive myelopathies in atertiary care hospital of Central Tamil nadu.Material and Methods: In the Neurology department, weconducted an observational study at Thanjavur MedicalCollege, Thanjavur, from September 2017 to September2018. Patients of non-compressive myelopathies whounderwent magnetic resonance imaging (MRI) of the spinewere segregated into two categories: Degenerative and nonDegenerative, as well as into acute, subacute and chronicmyelopathies.Results: The study had 75 patients with a median age of34.5 years and male: female ratio of 1.35:1. Presentation wasacute in 10 patients (13%), subacute in 5 (6.5%), chronic in54 (72.5%) and history of relapse and remission in 6(8%)patients. Degenerative etiology was found for 42 (56%)others were non degenerative (demyelinating, autoimmune,vascular, nutritional, or physical agent). MRI study carried outin all cases showed signal changes in 51 cases (68%) whichincluded myelomalacia, demyelination, atrophy of cord,infarction of cord. Etiological diagnosis could be establishedin 74 (97.3%) cases.Conclusion: Underlying etiology (degenerative,demyelinating, autoimmune, infectious, vascular, metabolicdisorder, or physical agent) was found in 91.3% patients ofnoncompressive myelopathy. Clinical features combinedwith MRI findings are helpful in defining the cause ofnon-compressive myelopathies. A follow-up of long termmay reveal some of the diagnosis especially degenerativemyelopathies in early stage.

Locking Stand-Alone Cage Constructs for the Treatment of Cervical Spine Degenerative Disease

STUDY DESIGN: Prospective case series study. PURPOSE: Description of the outcome of stand-alone cervical cages for single and multilevel cervical degenerative spine disease. OVERVIEW OF LITERATURE: The aim of anterior cervical discectomy and fusion (ACDF) for cervical spine disease is to improve patient symptoms and spine stability and restore lordosis. Locking stand-alone cages were developed with the goal of minimizing soft tissue disruption anterior to the vertebrae and reducing the profile of the construct by avoiding an anterior plate, thereby maximizing ACDF benefits. METHODS: This study comprises a case series of patients surgically treated between July 2015 and February 2018 who received single or multilevel ACDF with a zero-profile stand-alone cervical cage. Surgical and clinical preoperative evaluation and surgical outcomes were evaluated using pre- and postoperative Nurick, Visual Analog Scale (VAS), Neck Disability Index (NDI), Japanese Orthopedic Association (JOA) score for myelopathy scales, cervical Cobb angles, postoperative surgical complications, and fusion and subsidence rates. RESULTS: Fifty-three patients underwent ACDF; the mean age of these patients was 58.8 years, and their preoperative VAS, NDI, and JOA scores were 8.1, 31.6, and 15.3, respectively. The preoperative Cobb angle was 30.7°. Forty-five percent of patients had one-level, 54.7% had two-level, and 13.2% had three-level procedures. On preoperative magnetic resonance imaging, foraminal stenosis was present in 94.3% of patients, whereas medullar stenosis was present in 41.5%. The rate of complications was 5.7%: two patients had postoperative dysphagia (3.7%), and one patient had a surgical site hematoma. Mean postoperative follow-up time was 6.7 months; postoperative VAS, NDI, and JOA scores were 2.4, 15.9, and 15.8, respectively. Postoperative Cobb angle was 35.9°, fusion rate was 84.9%, and subsidence rate was 11.3%. CONCLUSIONS: ACDF with zero-profile stand-alone cervical devices is an excellent option for cervical degenerative disc disease of one, two, and three levels, with similar results reported when using ACDF with either cage or plate.

Mielopatía aguda compresiva por absceso pulmonar. Presentación de un caso / Compressive acute myelopathy by pulmonary abscess. A case report

Las mielopatías constituyen un conjunto heterogéneo de procesos patológicos que directa o indirectamente afectan a la médula espinal. Son poco frecuentes y pueden ser producidos por variadas causas y vías de afectación, que conllevan a grandes secuelas y elevada discapacidad. Se describe un caso de mielopatía aguda compresiva desencadenada por un absceso pulmonar como causa y mecanismo de producción inusual. Hombre de 48 años, con antecedentes de salud y cuadro clínico de inicio brusco de paraparesia fláccida e hiporreflexia osteotendinosa de miembros inferiores asimétrica, con predominio derecho, nivel sensitivo dorsal a nivel de D4 y dolor a la percusión en procesos espinosos dorsales en D3-D6. Los estudios sanguíneos, inmunológicos y de líquido cefalorraquídeo resultaron irrelevantes, excepto muestra de signos indirectos de infección. La radiografía de tórax mostró la presencia del absceso pulmonar primario derecho y la afectación medular se corroboró a través de la realización de la resonancia magnética medular dorsal. Presentó pobre respuesta ante los esteroides parenteral, hasta que se inició la terapia antibiótica, de forma paulatina y con apoyo rehabilitador. Transcurridos tres meses se investigaron y fueron descartadas otras etiologías no compresivas. Las mielopatías agudas representan un grupo heterogéneo de trastornos con distintas etiologías y mecanismos de producción, a través de su estudio se evidenció como causa un absceso pulmonar con afectación medular, por lo que debe ser considerado en la extensa lista de diagnósticos diferenciales (AU).

Myelopathies are a heterogeneous group of pathological processes that directly or indirectly affect the spinal cord. They are rare and can be produced by different causes and affectation pathways leading to major consequences and high disability. A case of acute compressive myelopathy triggered by a lung abscess as unusual cause and production mechanism is described. It is the case of a man, aged 48 years, with a clinical history and symptoms of acute onset of flaccid paraparesis and asymmetric osteotendinous hyporeflexia of lower limbs, with right predominance, dorsal sensitive level at D4, and pain at percussion in D3-D6 dorsal spinal processes. Blood, immune and cerebrospinal fluid (CSF) studies were irrelevant, but showing indirect signs of infection. Chest radiography showed the presence of the right primary lung abscess and spinal cord involvement was confirmed by performing dorsal medullar magnetic resonance (MRI). The patient had poor response to parenteral steroids until antibiotic therapy began, gradually and with rehabilitation support. After three months, other non-comprehensive etiologies were studied and ruled out. Acute myelopathies represent a heterogeneous group of disorders with different etiologies and production mechanisms. The study evidenced a lung abscess with spinal cord involvement as a cause, so it should be considered in the extensive list of differential diagnoses (AU).

Spinal Cord Neurosarcoidosis after Cervical Compressive Myelopathy

Sarcoidosis is a multisystem noncaseating granulomatous disease that usually involves the respiratory system. It can involve any part of the central nervous system, but spinal-cord involvement is extremely rare. There have been a few of reports on the coexistence of compressive myelopathy and spinal-cord sarcoidosis, and compressive myelopathy may be associated with the development of inflammatory granuloma in spinal-cord sarcoidosis. We report a 65-year-old man who presented with gait disturbance due to spinal-cord sarcoidosis after compressive myelopathy.

Skeletal fluorosis with progressive quadriparesis U.M.N. type, non compressive myelopathy, chronic kidney disease and secondary hyperparathyroidism and hypothyroidism – A case report.

Endemic fluorosis leads to dental fluorosis, skeletal fluorosis and visceral fluorosis. This case described about the crippling skeletal fluorosis with neurological manifestations in the form of myelopathy, due to exposure to high fluoride level in water for many years. The complications of fluoride deposition in bones resulted in generalised sclerosis, osteophytosis, with narrowing of inter vertebral disc spaces in vertebral column. In this case the skeletal fluorosis leads to severe spastic quadriparesis. This case had features of visceral fluorosis; the affected organs include thyroid gland with hypothyroidism, parathyroid gland with secondary hyperparathyroidism, pancreas with intra pancreatic calcification and the kidneys with chronic kidney disease.

Demographic Trends of Patients with Compressive Myelopathy in a Developing Asian Country

STUDY DESIGN: Prospective case series. PURPOSE: To analyze the demographic picture of the patients suffering from compression myelopathy due to various spinal problems. Overview of Literature: There is a lack of literature depicting demographic picture of such patients with spinal injuries as most of the articles have shown the epidemiology of spinal cord injuries either managed conservatively or operatively. None have focused on the patients with compressive myelopathy requiring surgeries. METHODS: Patients with spinal pathologies with a neurological deficit due to compressive myelopathy requiring surgical decompression of dorsal and thoracolumbar region were studied. The different kinds of etiologies, the demographic profiles involved, the involvement of various regions of spine in each of the etiologies, sex distribution of different etiologies, association of age and sex with the occurrence of paraplegia, and association of thoracolumbar junction (TLJ) involvement by age and sex were studied. This study addressed the dorsal and TLJ till L2 vertebrae surgically treated by anterior transthoracic transpleural approach. RESULTS: With regard to gender, 75% of the females and 67.3% of the males were paraplegic but there was no relationship between gender and the occurrence of paraplegia (p >0.05). There was also no association between TLJ involvement and the age and sex of the patients (p >0.05). Seventy percent of the patients were paraplegic with a mean age of 38.90 years and 30% were paraparetic with a mean age of 43.43 years. Male to female ratio stood at 4.43:1. CONCLUSIONS: Traumatic spine in females is increasing. The occurrence of paraplegia and involvement of TLJ is not affected by the age and the sex of the patients. Deep epidemiological understanding of spinal pathologies can lead to a better appreciation of the potential impact of health care management strategies and health policies to prevent and minimize their consequences considering limited worldwide reports on the same.

Hematoma espinal epidural espontáneo: reporte de un caso / Spontaneous spinal epidural hematoma: a case report

El hematoma espinal epidural espontáneo es raro en niños, especialmente en lactantes menores de un año. A esta edad, en la literatura inglesa se han reportado solamente cuatro casos. Considerando que en los lactantes los síntomas iniciales no son específicos, el diagnóstico se puede retrasar. Presentamos el primer caso reportado en Chile de un lactante con hematoma espinal epidural espontáneo. Un lactante varón de 11 meses de edad, inicia cuadro de repentino llanto, irritabilidad sostenida, con llanto al movilizar el cuello, agregándose cuatro días después, postura con leve inclinación de cabeza a izquierda, elevación de hombro izquierdo y paresia braquial derecha. Al 13°día desarrolla episodio repentino de distonía lingual, hipertonía de extremidades superiores y ataxia respiratoria. Al 16° día de evolución la RM demuestra una lesión epidural que comprime la médula espinal entre C2 y C5. Se realizó una laminectomía de emergencia extrayéndose el hematoma. Angio-RM y angio-TAC cervical fueron normales. Tres meses después de la cirugía, se mantiene con apoyo de ventilación mecánica y tetraparesia.

Spontaneous spinal epidural hematoma is rare in children, especially in infants less than one year old. Only four cases in this age range have been reported in the english literature Because of non-specific presenting symptoms in infants, the diagnosis may be delayed. We report the first case of spontaneous spinal epidural hematoma in Chile. An eleven month-old boy initially presented with sudden weeping, irritability and crying in response to neck mobilization. Four days later he developed head lateralization and upper right limb motor weakness. On the 13th day he had a sudden episode of lingual dystonia, upper limb hypertonia and respiratory ataxia. MRI showed epidural mass compressing the spinal cord at C2 to C5 level. At 16th day of evolution an emergency laminectomy and evacuation of hematoma was done. Cervical Angio-MRI and Angio-CT scan were normal. Three months after surgery, he is still tetraparetic and requires ventilatory support.

A Case of the Hirayama Disease in Young Male Adolescent

In the present study, we report muscular atrophy of the right distal upper extremity in a 14-year-old boy. The disease progressed insidiously for about 2 years, and during our first examination, he exhibited weakness and wasting in the right hand, and paresthesia on the C6-8 dermatomal area in the right upper extremity. Electromyography revealed neurogenic changes in atrophic muscles. Conduction velocity of the ulnar nerve of the affected hand was decreased. Magnetic resonance imaging (MRI) of the cervical spine in the neutral position revealed focal spinal cord atrophy and a small area of high signal intensity at C5-6 level. In the flexion-induced cervical spine MRI scan, the spinal cord was noticed to be compressed by the posterior dural sac with a forward shift and flow voids in the epidural space. All these parameters led to the diagnosis of Hirayama disease (HD). This is the first report of HD in Korea by pediatrician, even though it is characterized by juvenile onset.

A case of calcium pyrophosphate dihydrate deposition disease causing compressive cervical myelopathy / 대한내과학회지

Calcium pyrophosphate dihydrate (CPPD) deposition disease is an inflammatory arthropathy that is defined by the deposition of CPPD crystals in articular and periarticular structure. Spinal involvement in CPPD deposition disease is rare. We reported a rare case of CPPD deposition disease that caused compressive cervical myelopathy. A 57-year-old woman was admitted to the hospital with 1 week history of progressive paresis of the right upper and lower extremities. Computed tomography showed the round and nodular calcified ligamentum flavum. Magnetic resonance imaging showed a low intensity epidural mass pressing and distorting the cervical cord at C-4 and 5 levels on both T1 and T2- weighted images. Radiographic findings were consistent with calcification of the ligamentum flavum in the C-4 and 5 levels causing cord compression. The lesion was eventually removed by hemilaminectomy. The mass was composed of a very hard crystal like calcified deposition in the ligamentum flavum. The histopathological evaluation of the exicised ligamentum flavum revealed the characteristic crystals of CPPD.

The Cervical Herniated Intervertebral Disc Presenting with False Localizing Thoracic Sensory Levels

Symptoms of compressive cervical myelopathy classically include spasticity and weakness, predominantly involving the lower extremities. Sensory abnormalities are reportedly common in the upper extremities, but are often vague or misleading. The sensory findings are usually localized 2-3 spinal segments below the actual spinal cord compression. In our current series, 3 patients presented with progressive symptoms of weakness and hyperreflexia involving the lower extremities without upper extremity symptoms and with a distant thoracic sensory level ranging from T10 to T12. All 3 patients were eventually found to have a cervical herniated intervertebral disc. The direct physical effects of compression and vascular compromise in the central cervical cord compression may be responsible for the reported abnormality at a distinct thoracic sensory level. Failure to diagnose cervical myelopathy because of the presence of a thoracic sensory level can delay appropriate treatment or lead to incorrect therapy.