Relevance of the diagnosis traumatic cervical Brown-Séquard-plus syndrome: an analysis based on the neurological and functional recovery in a prospective cohort of 148 patients

Clinical Subsets of Central Cord Syndrome: Is it a Distinct Entity from Other Forms of Incomplete Tetraplegia for Research?

Central cord syndrome (CCS) is the most prevalent and debated incomplete spinal cord injury (SCI) syndrome, with its hallmark feature being more pronounced weakness of the upper extremities compared to the lower extremities. Varying definitions encapsulate multiple clinical features under the single umbrella term of CCS, complicating evaluation of its frequency, prognosis discussions, and outcomes research. Oftentimes, people with CCS are excluded from research protocols, as it is thought to have a favorable prognosis, but the vague nature of CCS raises doubts about the validity of this practice. The objective of this study was to categorize CCS into specific subsets with clear quantifiable differences, to assess whether this would enhance the ability to determine if individuals with CCS or its subsets exhibit distinct neurological and functional outcomes relative to others with incomplete tetraplegia. This study retrospectively reviewed individuals with new motor incomplete tetraplegia from traumatic SCI who enrolled in the Spinal Cord Injury Model Systems (SCIMS) database from 2010 to 2020. Through an assessment of the prevailing criteria for CCS, coupled with data analysis, we used two key criteria, including the severity of distal upper extremity weakness (i.e., hands and fingers) and extent of symmetry, to delineate three CCS subsets: Full CCS, Unilateral CCS, and Borderline CCS. Of the 1,490 participants in our sample, 17.5% had Full, 25.6% Unilateral, and 9% Borderline CCS, together encompassing more than 50% of motor incomplete tetraplegia cases. Despite the increased sensitivity and specificity of these subsets compared to existing quantifiable criteria, substantial variability in clinical presentation was still observed. Overall, individuals meeting CCS subset criteria showed a higher likelihood of AIS D grade compared to those with motor incomplete tetraplegia without CCS, from admission to the 1-year follow-up. The upper extremity motor score (UEMS) for those with CCS was lower on admission, a difference that diminished by discharge, while their lower extremity motor score (LEMS) consistently remained higher compared to those without CCS. However, these neurological distinctions did not result in significant functional differences, as lower and upper extremity functional outcomes at discharge were mostly similar to those with motor incomplete tetraplegia, with some significant differences observed within those with AIS D grade. The AIS grade seems to remain the foremost determinant influencing neurological and functional outcomes, rather than the diagnosis of CCS. We recommend that future studies consider incorporating motor incomplete tetraplegia into their inclusion/exclusion criteria, instead of relying on criteria specific to CCS. While there remains clinical value in characterizing an injury pattern as CCS and perhaps using the different subsets to better characterize the impairments, it does not appear to be a useful research criterion.

Microsurgical repair of severed thoracic spinal cord and clinical outcome: technical case report

Background

This report describes a case of successful repair of severed thoracic spine in a young man who presented with a penetrating stab injury to spine resulting in Brown-Séquard syndrome. Surgical technique and post-operative management is discussed.

Case presentation

A 34-year-old fit and well healthy man was admitted with a history of stab injury to the thoracic spine at thoracic T2/3 level with ASIA impairment score (AIS) score D with an incomplete spinal cord affecting his left lower limb with complete paralysis and right lower limb paresis with impaired sensation below T6 level to L5. Neuroimaging confirmed a penetrating knife injury traversing the T2/3 level causing hemi-section of the spinal cord confirmed intraoperatively. He underwent an urgent exploratory surgery of his spine and a T2/3 laminectomy was performed to aid removal of the knife. The dura was noted to be contused and severed spinal cord was noted to be severed with associated cord oedema. A microsurgical repair of the severed cord was performed with duroplasty followed by intense neuro-rehabilitation. On a 3 month follow up his AIS score is E with lower limb power is 5/5 bilaterally and he is able to mobilise independently up to 8–10 steps without any supportive aid and with crutches he is independently functional and mobile.

Conclusion

This is the first documented case of microsurgical repair of severed thoracic spinal cord secondary to traumatic knife injury. In the management of such scenario, apart from the removal of foreign body, repair of the cord with duroplasty should be carefully considered. The role of spinal neuroplasticity in healing following timely repair of the spinal cord along with intense rehabilitation remains the key. This had resulted in a good clinical and functional outcome with in a 18-month follow up.

Incomplete Spinal Cord Syndromes: Current Incidence and Quantifiable Criteria for Classification

The demographics of acute traumatic spinal cord injury (SCI) have changed over the last few decades, with a significant increase in age at the time of injury, a higher percentage of injuries caused by falls, and incomplete tetraplegia becoming the most common type of neurological impairment. Incomplete SCI syndromes, most specifically central cord syndrome (CCS), anterior cord syndrome (ACS) and Brown-Sequard syndrome (BSS), constitute a substantial proportion of incomplete tetraplegia and SCI overall. Nevertheless, the updated incidence of these syndromes is not well known, and their estimates vary considerably, largely because of methodological inconsistencies across previous studies. A retrospective analysis of individuals with new traumatic SCI enrolled in the Spinal Cord Injury Model Systems database between January 2011 and May 2020 was performed. Using newly proposed computable definitions for ACS and BSS, as well as an existing quantitative definition of CCS, we determined the current incidence and neurological characteristics of each syndrome. Within the population of individuals with a traumatic SCI, including all levels and severity of injuries (N = 3639), CCS, ACS, and BSS accounted for 14%, 6.5%, and 2%, respectively. Of the 1649 individuals with incomplete tetraplegia in our cohort, CCS was the most common syndrome (30%), followed by ACS (10%) and BSS (3%). Using quantifiable definitions, these three syndromes now account for ∼22% and ∼44% of cases of traumatic SCI and incomplete tetraplegia, respectively, with CCS having increased over the last decade. This updated information and proposed calculable criteria for these syndromes allow for a greater understanding of the incidence and characteristics of these syndromes and enable greater study in the future.

A Novel Method to Classify Cervical Incomplete Spinal Cord Injury Based on Potential for Recovery: A Group-Based Trajectory Analysis

The outcomes of cervical incomplete spinal cord injury (SCI) are heterogeneous. This study sought to dissociate subgroups of cervical incomplete SCI patients with distinct longitudinal temporal profiles of recovery in upper limb motor function. Patients with cervical incomplete SCI (American Spinal Injury Association Impairment Scale [AIS] B-D; C1-C8) were identified from four prospective, multi-center SCI datasets. A group-based trajectory model was fit to longitudinal upper extremity motor scores out to 1 year. Multi-variable multinomial logistic regression was performed to identify features that characterize each trajectory group. A classification system for predicting trajectory group at baseline was developed by recursive partitioning. In total, 801 patients were eligible. Four distinct trajectory groups were identified: 1) "Poor outcome": Severe injury, very minimal recovery; 2) "Moderate recovery": Moderate-to-severe injury, moderate recovery; most recovery occurs by 6 months, with mild, gradual recovery continuing thereafter; 3) "Good recovery": Moderate injury, good recovery; most recovery occurs by 3 months, with mild, gradual recovery continuing thereafter; and 4) "Excellent outcome": Mild injury, recovery to normal/near-normal by 3 months. On adjusted analyses, older age was associated with lower likelihood of "excellent outcome" (p = 0.020). AIS C and D injuries were associated with "moderate recovery," "good recovery," and "excellent outcome" (p < 0.001). Mid-cervical injuries occurred more frequently in "moderate recovery," "good recovery," and "excellent outcome" (p < 0.001) groups. Early surgical decompression (< 24 h) was associated with increased propensity for "good recovery" (p = 0.039) and "excellent outcome" (p = 0.048). A classification model based on recursive partitioning could predict trajectory group using age, AIS grade, and neurological level with an area under the curve of 0.81. Patients with cervical incomplete SCI demonstrate distinct temporal profiles of recovery in upper limb motor function. The trajectory a patient is likely to follow may be predicted at baseline with fair accuracy.

An unusual case of Brown-Sequard syndrome associated with Horner’s syndrome after a penetrating injury with a khuru (Bhutanese dart) to the neck: A case report

The occurrence of Brown-Sequard syndrome with Horner’s syndrome in a child with spinal trauma is a very rare and unusual entity. Brown-Sequard syndrome results from hemisection injury of the spinal cord, mostly in the cervical cord region. The Horner’s syndrome presents when the injury is in the cervical region involving the sympathetic pathway. We present you with the case of a 12-year-old boy who was referred from a local hospital with weakness on the left half of his body after sustaining a penetrating injury to his neck by a khuru (Bhutanese dart). Clinical examination was consistent with the diagnosis of Brown-Sequard syndrome with ipsilateral Horner’s syndrome. Although cervical spine plain radiographs showed no fracture, computed tomography and magnetic resonance imaging showed a C2 lamina fracture at the left side of the spinous process with indentation to the cord. He was managed conservatively with a soft cervical collar, intravenous antibiotics, and physiotherapy. He had complete resolution of Brown-Sequard syndrome and Horner’s syndrome after 1 year. Patients with Brown-Sequard syndrome associated with Horner’s syndrome usually have a good prognosis and full recovery rate with regular physiotherapy and rehabilitation. Early diagnosis and treatment will have a better chance of recovery and return to pre-injury status.

Brown-Séquard Syndrome Caused by Acute Traumatic Cervical Disc Herniation

Brown-Séquard syndrome (BSS) is an incomplete spinal cord injury caused by damage to one-half of the spinal cord. Most cases of BSS result from penetrating trauma or tumors, and acute cervical disc herniation is a relatively rare cause of BSS. In this case, a 34-year-old man with a sudden onset posterior neck pain and left side motor weakness was admitted to the local spine hospital. Pain and temperature sensation of pain was decreased below the right C4 dermatome. The left arm and leg motor grade was 0. Magnetic resonance imaging (MRI) showed a huge trans-ligamentous herniated disc rupture from the center to the left at the level of C3-4, and anterior cervical discectomy and fusion were performed. After emergency surgery, left arm and leg motor grade recovered to 2, and normal voiding function returned. MRI verified complete removal of the cervical herniated disc. This case describes the approach to rapid diagnosis in a patient with characteristic clinical symptoms of BSS and radiological findings of a herniated cervical disc. Rapid and accurate diagnosis and immediate decompressive surgery increased the possibility of a good surgical outcome, even if the neurologic deficits are grave at the time of admission.

Brown-Sequard syndrome associated with Horner syndrome following cervical disc herniation

INTRODUCTION

Brown-Sequard syndrome (BSS) has been reported in patients with various spinal pathologies, including spinal traumatic injuries, spinal cord neoplasms, epidural hematomas and spinal cord ischemia. Pure BSS caused by cervical disc herniation is very rare.

CASE PRESENTATION

We report a rare case of cervical disc herniation presenting as BSS associated with Horner syndrome (HS), which has not been reported up to now. A prompt diagnosis by magnetic resonance imaging (MRI), followed by spinal cord decompression was performed. A postoperative rapid improvement of the neurological deficits was observed.

DISCUSSION

We review the literature and discuss the functional anatomy of spinal cord of BSS combined with HS. And it is important that clinicians be aware that a MRI of spinal cord is needed for those patients with a thoracic sensory level, and that a thoracic sensory level might not only depend on the level of spinal cord injury but also on the stage of evolution of the lesion.

Scissors stab wound to the cervical spinal cord at the craniocervical junction

BACKGROUND CONTEXT

Stab wounds resulting in spinal cord injury of the craniocervical junction are rare. A scissors stab wound to the cervical spinal cord has been reported only once in the literature.

PURPOSE

This paper aimed to report a case of Brown-Séquard-plus syndrome in an 8-year-old boy secondary to a scissors stab wound at the craniocervical junction.

STUDY DESIGN

Case report and review of the literature.

PATIENT SAMPLE

Case report of an 8-year-old boy accidentally stabbed in the neck by scissors, which were thrown as a dart.

METHODS

The case study of an 8-year-old boy who was hospitalized because of a scissors stab wound at the craniocervical junction. The patient developed Brown-Séquard-plus syndrome on the left side of the body. Magnetic resonance imaging revealed a laceration of the spinal cord at the craniocervical junction with cerebrospinal fluid leakage. Careful cleansing and interrupted sutures of the wounds were performed to prevent cerebrospinal fluid leakage. Rehabilitation therapy was performed 2 days later.

RESULTS

A follow-up examination revealed complete recovery of the neurologic deficit 8 months post-injury.

CONCLUSION

Treatment of scissors stab wounds to the cervical spinal cord, whether conservative management or thorough surgical exploration, should be individualized based on history, examination, and imaging. As shown in this case report, despite conservative management, complete recovery, which was unexpected, was attributed to the initial mild laceration of the spinal cord and ipsilateral spinal cord functional compensation.

Brown-Séquard syndrome without vascular injury associated with Horner's syndrome after a stab injury to the neck

CASE DESCRIPTION

This case reviews the acute care and rehabilitation course of a 44-year-old right-handed woman after an assault with a pocketknife. She suffered multiple stab wounds including penetrating injury to the left side of her neck. Physical examination revealed left hemiplegia (motor score = 57), impaired pinprick sensation on the right caudal to the C5 dermatome, impaired joint position sense on the left, and left ptosis and miosis. Initially she was unable to stand without maximum assistance. MR imaging revealed transection of the left hemicord at the C5 level without cord hemorrhage. CTA of the neck was negative for vascular injury. She completed 18 days of acute inpatient rehabilitation. She used forearm crutches for ambulation at time of discharge. Prior to discharge the patient provided written permission for a case report.

DISCUSSION

Stab wounds are the most common cause of traumatic Brown-Séquard syndrome. Horner's syndrome is common in spinal cord lesions occurring in the cervical or thoracic region, however the combination of Horner's and Brown-Séquard syndromes is less commonly reported. In this case report, we review recommendations regarding initial imaging following cervical stab wounds, discuss anatomy and associated neurological findings in Brown-Séquard and Horner's syndromes, and review the expected temporal course of motor recovery.

CONCLUSIONS

Facilitating motor recovery and optimizing function after Brown-Séquard spinal cord injury are important roles for the rehabilitation team. Imaging is necessary to rule out cord hemorrhage or vascular injury and to clinically correlate cord damage with physical examination findings and expected functional impairments. Documenting associated anisocoria and explaining this finding to the patient is an important element of spinal cord injury education. Commonly, patients with Brown-Séquard injuries demonstrate remarkable motor recovery and regain voluntary motor strength and functional ambulation.

Cervical disc herniation manifesting as a Brown-Sequard syndrome

Brown-Sequard syndrome is commonly seen in the setting of spinal trauma or an extramedullary spinal neoplasm. The clinical picture reflects hemisection of the spinal cord. We report a rare case of Brown-Sequard syndrome caused by a large cervical herniated disc. A 63-year-old man presented with progressive right hemiparesis and disruption of pain and temperature sensation on the left side of the body. Magnetic resonance imaging showed large C3-C4 disc herniation compressing the spinal cord at that level, with severe canal stenosis from C4 through C7. Decompressive cervical laminoplasty was performed. After surgery, complete sensory function was restored and a marked improvement in motor power was obtained.