Emerging advances in spinal cord injury: An introductory overview

Abstract

Spinal cord injury (SCI) remains a devastating condition with limited treatment options. This Focus Issue highlights recent clinical and translational advances across the continuum of SCI care from prehospital coordination to novel therapeutics. The articles cover multidisciplinary strategies during the early post-injury phase, including acute pre-hospital care and pragmatic alternatives for settings with limited medical resources. A historical perspective on the evolution of surgical timing and a comprehensive reappraisal of the pathophysiology of central cord syndrome provide valuable clinical context. Emerging diagnostic innovations are prominently featured, including novel biomarkers such as cerebrospinal fluid pressure dynamics, quantitative MRI, and navigated transcranial magnetic stimulation, which offer the potential to refine diagnosis and personalize prognostication. In parallel, emerging therapeutic technologies such as 3D-printed surgical guides and clinical applications of stem cell therapies represent significant advances in addressing long-standing challenges. The issue also includes comprehensive reviews of current classification systems and diagnostic criteria for both spine fractures and degenerative cervical myelopathy. Together, these contributions provide a multidisciplinary overview of the evolving landscape in SCI research and care, bridging basic science with clinical practice across diverse healthcare settings.

1. Introduction

Spinal cord injury (SCI) remains one of the most devastating neurological conditions, frequently resulting in permanent sensorimotor deficits and lifelong disability (Ahuja et al., 2017). Despite significant advances in acute care, many patients face limited recovery due to the complex and multifactorial nature of SCI pathophysiology (Fehlings et al., 2024a, 2024b). Challenges such as variability and uncertainty in clinical presentation, limited access to multidisciplinary care, and the absence of effective treatments for the injured spinal cord prevent the restoration of complete neurological function.

To overcome these challenges, it is important to gain a clearer understanding of where we stand and how SCI care is evolving. Recent innovations such as dynamic monitoring of cerebrospinal fluid pressure (CSF) and spinal cord perfusion, clinical trials of induced pluripotent stem cell (iPSC)-derived neural progenitor cells, and neuromodulation techniques, such as navigated transcranial magnetic stimulation (nTMS), are expanding the possibilities for recovery in both acute and chronic phases of SCI. Understanding and incorporating these cutting-edge approaches is essential to build personalized, evidence-based treatment strategies that can improve patient outcomes.

This Focus Issue brings together a series of clinical and translational studies that reflect the latest advances in SCI research. By highlighting multidisciplinary early management, pathophysiological insights, diagnostic innovations, and emerging therapies, this collection offers a comprehensive overview of the current state and future directions of SCI treatment. This review aims to bridge knowledge gaps by providing current evidence to support optimal care and improve long-term functional outcomes for patients with SCI.

2. Overview of the articles

2.1. Multidisciplinary and personalized early management of acute SCI

Modern management of SCI is increasingly evolving toward integrated, patient-centered approaches that go beyond isolated surgical interventions. Particular progress has been made in the acute management of SCI complicated by polytrauma, where timely and coordinated care is critical (The acute phase management of traumatic spinal cord injury (tSCI) with polytrauma: A narrative review) (Picetti et al., 2024). Picetti et al. emphasize five key priorities in the emergency setting: protecting the spine at the scene, performing early surgical decompression (“Time is Spine”), stabilizing hemodynamics, coordinating care for multiple injuries, and initiating neurorehabilitation as early as possible. These strategies underscore the complexity and urgency of acute SCI care, where multidisciplinary, evidence-based decision-making is essential to maximize neurological recovery. Many clinical guidelines for SCI management are developed in high-resource settings and may not be accessible or applicable in low- and middle-income countries (LMICs), where resource constraints limit their implementation. To address this gap, a consensus-driven framework has been developed specifically for pre-hospital and emergency room care in diverse healthcare environments (BOOTStrap-SCI: Beyond One option of treatment for spinal trauma and spinal cord injury: Consensus-based stratified protocols for pre-hospital care and emergency room) (Marchesini et al., 2025). Using the Delphi method, multidisciplinary experts developed step-by-step protocols tailored to varying resource settings. These protocols address key elements such as resuscitation, spinal precautions, neurological assessment, and referral pathways, with built-in flexibility to accommodate both basic and advanced clinical settings. These protocols aim to improve early SCI care where standard resources may be lacking, offering structured yet flexible guidance.

2.2. More precise evaluation of SCI pathophysiology

A deeper understanding of the spatiotemporal pathophysiology of SCI is essential to refine therapeutic strategies and inform clinical decision-making. A recent preclinical study titled “Analysis of the spatiotemporal dynamics of vascular injury and regeneration following experimental Spinal Cord Injury” offers valuable insights into the pathophysiology of SCI (Entenmann et al., 2025a). Using a mice clip-compression model, the authors demonstrated that vascular damage extends beyond the epicenter into adjacent regions, with a marked loss of perfusion and blood-spinal cord barrier integrity in the acute phase. Although signs of vascular repair emerge by day 3 post-injury—particularly in the perilesional areas—full restoration remains incomplete by day 28. These findings underscore the importance of timely interventions that target not only the lesion core but also the surrounding microvascular environment.

This evolving knowledge of injury dynamics also sheds new light on the long-standing debate regarding the optimal timing of surgical decompression. The historical review “Under Pressure – A Historical Vignette on Surgical Timing in Traumatic Spinal Cord Injury” traces the evolution of surgical timing strategies, from early conservative approaches to current evidence favoring early decompression (Wengel et al., 2024). Landmark studies such as STASCIS support surgical treatment within 24 hours to improve neurological outcomes. More recently, attention has shifted toward the quality of decompression itself, with emerging trials such as those investigating the role of expansion duroplasty suggesting that restoration of spinal cord perfusion pressure may be as important as surgical timing.

The complexity of SCI pathophysiology is further illustrated by clinical insights into central cord syndrome, a condition often seen in older patients with cervical spondylosis following hyperextension injury (Traumatic Central Cord Syndrome: An Integrated Neurosurgical and Neurocritical Care Perspective.) (Martínez et al., 2025). Traditionally thought to result from localized damage to medial corticospinal tracts, current evidence points to a more diffuse and heterogeneous pattern of injury involving both white and gray matter networks. Advanced neuromonitoring techniques, such as intraspinal pressure and spinal cord perfusion pressure monitoring, can help to refine our physiological understanding of injury severity and support more targeted hemodynamic management. While early decompression remains important, growing emphasis is placed on patient-specific factors, surgical precision, and individualized neurocritical care as key contributors to functional recovery.

2.3. A variety of pathologies: Spine fractures and ischemia-reperfusion injury

This section introduces the diverse pathologies involved in spinal trauma—odontoid fractures, postictal vertebral fractures, and white cord syndrome—each highlighting different mechanisms of spinal injury and the evolving strategies for their diagnosis and management.

The review by Dantas et al. serves as a foundation for understanding the complexities of odontoid fracture classification (A systematic review with illustrative case examples) (Dantas et al., 2025). Through an in-depth evaluation of eleven classification systems, the authors underscore how traditional frameworks such as Anderson and D'Alonzo or Grauer have shaped clinical practice but fall short in addressing patient-specific factors like osteoporosis. Their comprehensive review provides valuable insights into the management of odontoid fractures and contributes to a deeper understanding of the condition.

Expanding the discussion beyond typical trauma, Manrique-Guzman et al. explore vertebral fractures resulting from seizure-induced muscular forces—a rare but important subset of spine injuries (Postictal vertebral fractures: Incidence, risk factors, and clinical outcomes. A systematic review) (Manrique et al., 2024). Their detailed review provides important insights into vertebral fractures following a generalized tonic-clonic seizure, a condition that is often overlooked in clinical practice. It highlights several risk factors that can lead to this specific injury, as well as cases that may result in more severe neurological deficits. The findings are essential not only for spine surgeons but also for all healthcare providers involved in the initial management of such patients.

De Groot et al. examine white cord syndrome (WCS), a rare reperfusion-related complication following surgical decompression for cervical myelopathy (White cord syndrome: A rare complication of adequate spinal cord decompression. A case report and review of current literature) (de Groot et al., 2025). This case-based review captures the paradox where technically successful spinal cord decompression results in acute neurological worsening, with postoperative imaging revealing intramedullary T2 hyperintensities without evidence of mechanical insult. The authors contextualize WCS within ischemia-reperfusion injury and provide a detailed overview of this rare condition. Furthermore, through a systematic review, they discuss the neurological outcomes and available treatment options for this uncommon disorder. This article is a must-read for any spine surgeon involved in the management of cervical spine disorders.

2.4. Diagnostic innovation

Accurate diagnosis and functional assessment are the cornerstones of effective SCI management. Traditional imaging techniques such as MRI remain indispensable, but they often fall short of capturing dynamic or functional aspects of spinal cord compromise, especially in early phases. Recent studies featured in this Focus Issue demonstrate how novel diagnostic tools are advancing the precision and individualization of SCI care.

One of the most promising frontiers is the use of cerebrospinal fluid (CSF) pressure dynamics as a biomechanical biomarker, as explored in the conceptual framework and systematic review by Kheram et al. (Cerebrospinal fluid pressure dynamics as a biomechanical marker forquantification of spinal cord compression: Conceptual framework andsystematic review of clinical trials) (Kheram et al., 2025). By offering a dynamic, physiological perspective, this approach may help identify patients at risk of neurological decline even when structural imaging appears inconclusive. Their review of clinical studies suggests that CSF pressure profiles may correlate with both symptom severity and surgical outcomes, highlighting the potential of pressure-based monitoring as a complementary tool in both diagnostic workup and intraoperative decision-making.

Another technology with growing clinical relevance is navigated transcranial magnetic stimulation (nTMS). In two contributions to this Focus Issue, Schwendner et al. (Diagnostic and prognostic value of navigated transcranial magnetic stimulation to assess motor function in patients with acute traumatic spinal cord injury) and Jung et al. (nTMS in spinal cord injury: Current evidence, challenges and a future direction) explore nTMS as a non-invasive technique for motor mapping in SCI patients (Schwendner et al., 2025; Jung et al., 2025). Their studies show that motor-evoked potentials recorded through nTMS correlate well with functional status and can predict motor recovery, even in acute cases. Importantly, nTMS may offer valuable insights when traditional examinations are limited in sedated or polytrauma patients and could serve as a quantitative adjunct to clinical scoring systems. Beyond prognostication, nTMS also holds promise in rehabilitation planning and outcome tracking.

There is increasing interest in applying advanced MRI techniques to better understand spinal cord pathology. In their review of functional MRI and spinal cord imaging, Entenmann et al. highlight how modalities such as diffusion tensor imaging and magnetic resonance spectroscopy can reveal subtle microstructural changes that may precede clinical symptoms (Closing the diagnostic gap: A narrative review of recent advances in functional MRI diagnostics in spinal cord injury) (Entenmann et al., 2025b). These imaging biomarkers offer valuable insights into the underlying mechanisms of injury and hold promise for enabling earlier diagnosis and more personalized treatment planning.

Although various classification systems for SCI exist, there is currently no widely accepted and clinically validated assessment tool that integrates multiple modalities for individualized surgical decision-making. In contrast, the field of degenerative cervical myelopathy (DCM) has begun to move in a more structured direction as shown in Validation of a novel scoring system (Cervical Surgical Score) for the management of degenerative cervical myelopathy (Costa et al., 2025). Costa et al. outlines a novel, evidence-based framework to assist surgeons in determining optimal surgical approaches (anterior vs posterior) based on a combination of radiographic and clinical parameters.

Further complementing this structured approach, the RECODE-DCM peri-operative rehabilitation incubator has highlighted the essential role of non-surgical clinicians in improving diagnostic precision and care coordination for individuals with DCM (What is the role of non-surgical clinicians in the assessment and management of degenerative cervical myelopathy? – Insights from the RECODE-DCM peri-operative rehabilitation incubator) (Chauhan et al., 2025). This includes efforts to reduce diagnostic delays (average 2.5 years) by promoting early recognition of subtle symptoms in primary care settings. Moreover, non-surgical providers contribute meaningfully to patient education, symptom monitoring, and functional assessments, especially in cases of non-myelopathic with spinal cord compression (NMSCC) where surgical thresholds are unclear. These initiatives point toward a more integrated, multimodal diagnostic framework that leverages both surgical and non-surgical expertise to optimize timely, personalized care pathways in DCM, offering a potential blueprint for innovation in the broader SCI field as well.

2.5. Emerging therapeutic strategies in SCI: including translational approaches

Recent advances in SCI therapeutics have focused on combining emerging technologies with biological approaches to improve outcomes across various stages of care. One innovative surgical technique is the use of 3D-printed patient-specific templates to enhance the precision of pedicle screw placement in cervical stabilization procedures. Ur et al. report the successful application of such a template in a patient with post-laminectomy cervical instability (3D-printed guide template for cervical stabilization surgery: A case report) (Ur et al., 2025). Compared to traditional methods, the template can reduce operative time and radiation exposure while maintaining high screw placement accuracy. The approach demonstrates a cost-effective and accessible alternative to robotic systems, particularly beneficial in resource-limited settings.

In the realm of biological therapies, stem cell transplantation continues to show promise for SCI repair. A comprehensive clinical review summarizes ongoing trials involving diverse cell types, including mesenchymal stem cells (MSCs), fetal and pluripotent stem cell-derived neural progenitor cells, Schwann cells, and olfactory ensheathing cells (Stem cell therapies for spinal cord injury in humans: A review of recent clinical research) (Sugai et al., 2025). Notable examples include Japan's conditional approval of MSC therapy (Stemirac) and first-in-human trials using iPSC-derived neural progenitor cells. Although safety profiles have generally been favorable, the clinical efficacy remains variable. Challenges such as optimal delivery routes, immune responses, and natural recovery variability highlight the need for improved trial design and combinatorial strategies involving rehabilitation or biomaterials.

Grasso et al. provide a broad review of current and emergent therapies that outlines several pharmacological candidates (e.g., riluzole, minocycline), molecular targeting strategies (e.g., anti-Nogo-A antibodies), and neuromodulatory approaches (e.g., epidural stimulation, brain-computer interfaces) (Current and emergent therapies targeting spinal cord injury) (Grasso et al., 2025). This review emphasizes the importance of translational pipelines, combining mechanistic insight from preclinical studies with carefully designed human trials. Future therapeutic directions include precision medicine frameworks, advanced biomaterial scaffolds, and integrative neuroengineering solutions.

3. Conclusion

This Focus Issue encapsulates a diverse array of innovative and clinically relevant research, reflecting significant strides made in spinal cord injury and spine trauma management. Common themes of early management, precise understanding of pathophysiology, diagnostic innovation, and emerging therapies underscore an integrated approach to advancing SCI care. Collectively, these articles not only highlight current achievements but also set the stage for future research directions that aim to further bridge treatment gaps.