Diagnosis and Management of Invalidating Degenerative Spinal Disorders

A special issue of Diagnostics (ISSN 2075-4418). This special issue belongs to the section "Pathology and Molecular Diagnostics".

Deadline for manuscript submissions: closed (31 October 2024) | Viewed by 3348

Special Issue Editor


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Guest Editor
IRCCS Galeazzi-Sant’Ambrogio, Milan, Italy
Interests: cervical spondylotic myelopathy; spinal disorders

Special Issue Information

Dear Colleagues,

We invite you to contribute to this Special Issue focusing on the “Diagnosis and Management of Invalidating Degenerative Spinal Disorders”. The aim of this Special Issue is to update information with regard to the clinical presentation, radiological diagnosis, neurophysiological setting, conservative treatment, surgical treatment, physiotherapeutic management and long term follow up of the most invalidating degenerative spinal disorders (DSDs).

Cervical Myelopathy is a major cause of invalidity in developed countries. CSM is the most frequent cause of spinal cord injury in adults. Delayed diagnosis and management lead to permanent invalidity. The clinical picture includes an alteration of hand dexterity, gait instability, paraparesis/tetraparesis and sphincterial impairments.

The most invalidating degenerative spinal disorders of the dorsal spine are giant dorsal disc herniations and ligamentum flavum calcifications determining spinal cord injury. The clinical picture varies from radicular pain, with heaviness in the lower limbs, to more severe situations of paraparesis or paraplegias with sphincterial impairments.

The most invalidating clinical pictures at the lumbar spine are as follows; a. cauda equina syndrome secondary to disc herniation. b. nerve root damage secondary to disc herniation or severe untreated lumbar stenosis with and without spondylolisthesis.

Radiological evaluation modalities include X-rays, CT, and MRI, with the latter being the most sensitive one.

Neurophysiological settings like somatosensory-evoked potentials (SEPs) and motor-evoked potentials (MEPs) evaluation are required in the assessment of patients with CSM.

Once the diagnosis is determined a therapeutical decision must be made.

Surgery is mandatory and has to be performed as soon as possible in acute events such as acute myelopathy or cauda equina syndrome. A programmed surgery in reasonable time is reserved for progressive myelopathy and disc herniation with strength impairment. Meanwhile, a conservative treatment with clinical and radiological follow up might be considered in patients with stable mild conditions.

This Special Issue is dedicated to the diagnosis (clinical, radiological, neurophysiological) and management (surgical, conservative) of invalidating DSDs.

We encourage the submission of papers that address a wide range of topics, including clinical evaluation, radiological evaluation, neurophysiological evaluation, medical and surgical treatment and long-term follow up.

Join us in this Special Issue in order to advance our knowledge and contribute to the development of improved diagnostic and treatment approaches to DSDs. Submissions should adhere to the journal's guidelines and will undergo a rigorous peer-review process. Together, let us enhance patient care and outcomes by motivating advancements in the management of invalidating DSDs.

Dr. Edvin Zekaj
Guest Editor

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Keywords

  • myelopathy
  • cauda equina syndrome
  • degenerative spinal disorders
  • outcomes

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Published Papers (3 papers)

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Research

12 pages, 7510 KiB  
Article
Unlocking Precision in Spinal Surgery: Evaluating the Impact of Neuronavigation Systems
by Mehmet Yigit Akgun, Mete Manici, Ozkan Ates, Melis Gokdemir, Caner Gunerbuyuk, Mehmet Ali Tepebasili, Oguz Baran, Turgut Akgul, Tunc Oktenoglu, Mehdi Sasani and Ali Fahir Ozer
Diagnostics 2024, 14(16), 1712; https://doi.org/10.3390/diagnostics14161712 - 7 Aug 2024
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Abstract
Objective: In spine surgery, ensuring the safety of vital structures is crucial, and various instruments contribute to the surgeon’s confidence. This study aims to present outcomes from spinal cases operated on using the freehand technique and neuronavigation with an O-arm in our clinic. [...] Read more.
Objective: In spine surgery, ensuring the safety of vital structures is crucial, and various instruments contribute to the surgeon’s confidence. This study aims to present outcomes from spinal cases operated on using the freehand technique and neuronavigation with an O-arm in our clinic. Additionally, we investigate the impact of surgical experience on outcomes by comparing early and late cases operated on with neuronavigation. Method: We conducted a retrospective analysis of spinal patients operated on with the freehand technique and neuronavigation in our clinic between 2019 and 2020, with a minimum follow-up of 2 years. Cases operated on with neuronavigation using the O-arm were categorized into early and late groups. Results: This study included 193 patients, with 110 undergoing the freehand technique and 83 operated on utilizing O-arm navigation. The first 40 cases with neuronavigation formed the early group, and the subsequent 43 cases comprised the late group. The mean clinical follow-up was 29.7 months. In the O-arm/navigation group, 796 (99%) of 805 pedicle screws were in an acceptable position, while the freehand group had 999 (89.5%) of 1117 pedicle screws without damage. This rate was 98% in the early neuronavigation group and 99.5% in the late neuronavigation group. Conclusions: The use of O-arm/navigation facilitates overcoming anatomical difficulties, leading to significant reductions in screw malposition and complication rates. Furthermore, increased experience correlates with decreased surgical failure rates. Full article
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9 pages, 3988 KiB  
Article
Using Finite Element Models to Assess Spinal Cord Biomechanics after Cervical Laminoplasty for Degenerative Cervical Myelopathy
by Mahmudur Rahman, Peter Palmer, Balaji Harinathan, Karthik Banurekha Devaraj, Narayan Yoganandan and Aditya Vedantam
Diagnostics 2024, 14(14), 1497; https://doi.org/10.3390/diagnostics14141497 - 12 Jul 2024
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Abstract
Cervical laminoplasty is an established motion-preserving procedure for degenerative cervical myelopathy (DCM). However, patients with pre-existing cervical kyphosis often experience inferior outcomes compared to those with straight or lordotic spines. Limited dorsal spinal cord shift in kyphotic spines post-decompression and increased spinal cord [...] Read more.
Cervical laminoplasty is an established motion-preserving procedure for degenerative cervical myelopathy (DCM). However, patients with pre-existing cervical kyphosis often experience inferior outcomes compared to those with straight or lordotic spines. Limited dorsal spinal cord shift in kyphotic spines post-decompression and increased spinal cord tension may contribute to poor neurological recovery and spinal cord injury. This study aims to quantify the biomechanical impact of cervical sagittal alignment on spinal cord stress and strain post-laminoplasty using a validated 3D finite element model of the C2–T1 spine. Three models were created based on the C2–C7 Cobb angle: lordosis (20 degrees), straight (0 degrees), and kyphosis (−9 degrees). Open-door laminoplasty was simulated at C4, C5, and C6 levels, followed by physiological neck flexion and extension. The results showed that spinal cord stress and strain were highest in kyphotic curvature compared to straight and lordotic curvatures across all cervical segments, despite similar segmental ROM. In flexion, kyphotic spines exhibited 103.3% higher stress and 128.9% higher strain than lordotic spines and 16.7% higher stress and 26.8% higher strain than straight spines. In extension, kyphotic spines showed 135.4% higher stress and 241.7% higher strain than lordotic spines and 21.5% higher stress and 43.2% higher strain than straight spines. The study shows that cervical kyphosis leads to increased spinal cord stress and strain post-laminoplasty, underscoring the need to address sagittal alignment in addition to decompression for optimal patient outcomes. Full article
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12 pages, 11620 KiB  
Article
Use of Dynamic Spinal Instruments (Dynesys) in Adult Spinal Deformities According to Silva–Lenke and Berjano–Lamartina Classifications
by Mehmet Yigit Akgun, Ege Anil Ucar, Cemil Cihad Gedik, Caner Gunerbuyuk, Mehdi Hekimoglu, Onder Cerezci, Tunc Oktenoglu, Mehdi Sasani, Ozkan Ates and Ali Fahir Ozer
Diagnostics 2024, 14(5), 549; https://doi.org/10.3390/diagnostics14050549 - 5 Mar 2024
Cited by 1 | Viewed by 1166
Abstract
Background: Adult spinal deformities (ASD) present complex challenges in spine surgery. The diverse nature of these deformities requires a comprehensive understanding of their classification and treatment options. Traditional approaches, such as fusion and rigid stabilization are associated with complications, including screw loosening, breakage, [...] Read more.
Background: Adult spinal deformities (ASD) present complex challenges in spine surgery. The diverse nature of these deformities requires a comprehensive understanding of their classification and treatment options. Traditional approaches, such as fusion and rigid stabilization are associated with complications, including screw loosening, breakage, proximal junctional kyphosis (PJK), and pseudoarthrosis. Dynamic stabilization techniques have emerged as promising alternatives, to reduce these complications and preserve spinal motion. Objective: This study investigated the effectiveness of dynamic stabilization using the Dynesys system in the surgical treatment of adult degenerative spinal deformities, with a particular emphasis on their classification. Methods: ASDs were classified according to the Berjano–Lamartina (BL) and Silva–Lenke (SL) classifications. We analyzed the efficacy of the Dynesys system in enhancing sagittal balance, radiological parameters, and clinical outcomes in this context. Results: Dynamic stabilization of patients with ASDs using the Dynesys system significantly improved the visual analog scale and Oswestry Disability Index scores and decreased the complication rates. Patients with BL types 2, 3, and 4 experienced a significant improvement in sagittal balance followed by sagittal vertical axis measurements (p = 0.045, p = 0.015, and p < 0.0001, respectively). Conclusion: The SL and BL classifications, which were originally developed for rigid spinal stabilization, can be applied in dynamic stabilization. Furthermore, dynamic stabilization using the Dynesys system can be used as an alternative to rigid stabilization in SL levels 2 and 3, and BL types 1, 2, and 3, and in some patients with type 4 ASDs. Full article
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