Emergency Medicine · Vol. 7, No. 1 · 2021 · pp. 9–13 · e-ISSN 2379-4046

Ultra-Early Cord Decompression in the Emergency Setting and its Impact on Outcome

Ali Ahmadvand, Mohammad J. Behzadnia, Amin Jahanbakhshi, Mohammad R. Zarei

Trauma Research Center, Baqiyatallah University of Medical Sciences,Tehran, IranIran
Trauma Research Center, Baqiyatallah University of Medical Sciences,Tehran, Iran; Faculty of Medicine, Azad University of Medical Sciences,Tehran, IranIran
Department of Neurosurgery, Skull Base Research Center, Iran University of Medical Sciences,Tehran, IranIran
Department of Emergency Medicine, Sina Trauma and Surgery Research Center,Tehran University of Medical Sciences,Tehran, IranIran

DOI: https://doi.org/10.17140/emoj-7-160 · Published 2021-02-22 · Licence: https://creativecommons.org/licenses/by/4.0 · © 2021 The Author(s)

Abstract

Background Traumatic cervical are injuries are very common due to high motility of cervical spine and its vulnerability to traumatic injuries. Optimal time for stabilizing the patients with traumatic spinal fractures remains controversial. It is almost due to different out comes in various studies and the lack of consensus about it. Here we explain an ultra–early cord decompression that led to complete recovery of a patient with severe cervical cord injury. Case Presentation The patient was a 27-year-old gymnast woman with a recent history of spinal cord injury caused by high jumping with head back and neck hyperextension presented within 2-hours of trauma. As a critical case and lack of advanced radiologic equipment, only cervical spinal radiographs were used for decision-making within the first 3 hours of injury to save the patient’s cord function by surgical decompression. Conclusion Many studies have proposed different intervention times for achieving the optimal result; however, we present an ultra-early surgery (within 3-hours of injury), conducted in a context of limited medical facilities. This case revealed an excellent result after 12-months follow-up.

Keywords: Cervical spine; Early decompression; Surgery; Trauma

Background

Traumatic cervical are injuries are very common due to high motility of cervical spine and its vulnerability to traumatic injuries. Optimal time for stabilizing the patients with traumatic spinal fractures remains controversial. It is almost due to different outcomes in various studies and the lack of consensus about it. Here we explain an ultra–early cord decompression that led to complete recovery of a patient with severe cervical cord injury.

Case Presentation

The patient was a 27-year-old gymnast woman with a recent history of spinal cord injury caused by high jumping with head back and neck hyperextension presented within 2-hours of trauma. As a critical case and lack of advanced radiologic equipment, only cervical spinal radiographs were used for decision-making within the first 3 hours of injury to save the patient’s cord function by surgical decompression.

Conclusion

Many studies have proposed different intervention times for achieving the optimal result; however, we present an ultra-early surgery (within 3-hours of injury), conducted in a context of limited medical facilities. This case revealed an excellent result after 12-months follow-up.

Keywords

Cervical spine; Early decompression; Surgery; Trauma.

Introduction

raumatic cervical injuries occur in 2-3% of all traumatic patients and account for 8% of trauma-related deaths.1 The in- T cidence of spinal cord injury is about 30 person per million in the world.2 Optimal time for stabilizing the patients with traumatic spinal fractures remains controversial. It is almost due to the lack of a consensus on different outcomes in various studies. Depending on the clinical situation, it is very important to make a timely and appropriate decision.3 Many studies have discussed and explained different time durations as a deadline for achieving the optimal results. Some studies have assessed the frequency, timing and prediction of symptom development in patients with radiological evidence of cord compression or spinal canal narrowing. Some

cc Copyright 2021 by Zarei MR. This is an open-access article distributed under of these studies have reached to a recommendation in favor of 3-6 “early” or “very-early” surgery in acute setting.3-6

Very-early surgery is considered as surgery performed within 8-hours of trauma. Here, we present a rare case of traumatic cervical spine injury that was operated within 3-hours of the injury in a setting with no magnetic resonance imaging (MRI) utility. The outcome of this so-called ultra-early surgery will be discussed.

Case Presentation

A 27-year-old gymnast female arrived at the emergency department, suffering from neck pain and bilateral upper extremity numbness

Creative Commons Attribution 4.0 International License (CC BY 4.0), which

and weakness after falling and neck hyperextension 2-hours before presentation. The neurological examination revealed the weakness of the upper extremities and reduced sensation bilaterally in the C3 to C7 dermatomes, and the patient felt hyperalgesia and numbness in peri-umbilical area. The motor strength of both upper extremities were 1/5 to 2/5. Her hands’ strength in flexor muscles were 1/5 bilaterally. Besides the normal sensation, the motor strength of the lower extremities was 3/5. The deep tendon reflexes (DTR) of the both extremities were within the normal range. Rectal tone and bulbocavernosus reflex were also normal. According to the American Spinal Association (ASIA) score, the patient was categorized in grade C. Her initial examination suggested a central cord syndrome. She had no history of any systemic diseases such as diabetes, hypertension and no long-term use of any medication.

This patient had been admitted to a hospital with no computerized tomography (CT) scan or MRI facilities. Waiting for performing CT scan or MRI would make a significant delay in patient’s treatment. Therefore, only cervical spinal radiographs were used for decision-making (Figure 1). She underwent a decompression surgery within the first 3-hours after trauma (Figure 2). Intravenous methylprednisolone was also administered with a dose of 500 mg in 10-minutes and 500 mg every 6-hours thereafter for 24-hours. Intravenous cefazolin was administrated just before surgery for 24-hours every 6-hours. According to the American Spinal Injury Association modified Frankel classification, neurological functions were assessed before and after the surgery and during the follow-up.7 The goal was to restore the maximal spinal stability, cord decompression and eventually to let the patient be mobilized as soon as possible in an ultra-early time within 3-hours of the trauma. A written informed consent has been obtained from the patient to let us present his medical information.

Figure 1. Elateral Cervical X- ray, 3-Hours after the Trauma Reveals a Fracture-Dislocation th of the 5 Cervical Spine

Figure 2. Lateral Cervical X- ray, after First Operation, Corpectomy and Iliac Replacement Grafting, One-Day after Trauma

Surgical Method

Under general anesthesia and supine position,a right-sided Smith – Robinsons approach through a 5 cm standard transverse incision was used. C4 and C5 partial corpectomy andstabilization of C3 to C6 ,were performed. An iliac crest graft was set on the corpectomy defect in the first stage. Later, the iliac crest graft was removed and titanium mesh filled with autologous bone graft and cervical plate (Medtronic spine, Minnesota, USA) was used for anterior fusion of C3 to C6. In the third stage, thepatient was positioned prone in a Mayfield head holder. A midline 9 cm skin incision was made starting at the external occipital protuberance. The lateral masses of the C3-6 were subsequently exposed by subperiosteal dissection. Then, the lateral mass screws (Medtronic spine) was placed in C3-6 lateral masses, using Magerl technique (Figure 3).8 Eventually, proper drainage was placed and a Philadelphia cervical collar was used to post-operative neck immobilization (8 to 12-weeks). The patient was discharged from the acute care when she was medicall-

Figure 3. Lateral Cervical X-ray, Performed Post-operatively y stable. Post-operative cervical radiography showed sufficient reduction and good positioning of the implants. Subsequently, post-surgical MRI of the cervical spine, performed in another medical center, confirmed the diagnosis. (Figure 4). Rehabilitation was started within 2-days postoperatively. Four-days later, the

patient was reassessed neurologically; there were no significant differences in neurological status before and after the operation and she discharged home.

Figure 4. Cervical MRI, 2-Days after Trauma, Myelogram View Shows the Central Cord Injury She was evaluated within every 3-months in outpatient clinicfor one year. In her last follow-up, the motor strength had recovered completely. In her neurological examination, there was only a numbness around the peri-umbilical area. She returned to

her ordinary life without any restrictions.

Discussion And Conclusion

Theoretically, in case of ongoing pressure on spinal cord, early decompression would help in reestablishment of cord blood supply and prevent further ischemic injury. Moreover, by restoration of CSF circulation around the injured cord, noxious inflammatory substances may be washed out, and therefore it might have a role in preventing secondary injuries to the cord.

Definition of early and late intervention is still unclear in various studies. Some authors like Frangen et al11 believed that the importance of coexisting lung injuries in acute spinal trauma is an important factor influencing the clinical outcome, even in the early intervention and severely injured casualties. In another study, Kerwin et al12 showed a marked correlation between postoperative complications (such as pneumonia) and time of admission in patients who underwent early (≤ 72-hours) surgical fixation. Interestingly, according to Injury Severity Score (ISS) early surgical

stabilization is more effective in patients with more severe injuries.13 Dvorak et al14 determined that early surgery within 24-hours of spinal injury will improve the motor neurological recovery and also reduces the duration of hospital stay. Similarly, in Dorban’s et al15 study, ultra-early surgery (≤ 12-hours) in patients with neurological defects had a better neurological outcome.

Interestingly some authors mentioned a significant longer waiting time in older patients (≥ 75 y/o) from admission to surgery, despite less severe injuries. McKinly's study noted that the ASIA motor index was important in the nonsurgical group, especially in the patientswith incomplete injuries and the elderly. However in that study, there was no difference in neurological or functional improvement between the early (≤ 24-hours) and the late (≥ 72-hours) groups.16 In another investigation by Furlan et al, early decompression of spinal cord was more cost-effective than delayed intervention in both complete and incomplete injuries; however, it seems that further investigation is still required in the future to reach the best outcome.17

Although the best time for the early surgical intervention remains to be determined, most studies report the first 24-hours as a deadline for the best outcome. However, in some other studies, acute or early trauma stabilization time is defined as ≤ 3-5,13,17-20 72-hours.

Yue et al2 in a reviewof 56 published studies in the field of acute cervical spine injuries showed an improved outcome the in early (≤24-hours) interventions. Bourassa-Moreau et al21 reported that earlier surgical intervention will reduce complication rate such as pneumonias (≤72-hours) and pressure ulcer (≤24-hours).

Contrary to the vast agreement with early operation, many studies have demonstrated different results. Liu et al showed no significant difference between two groups in the early and late surgical complications such as pneumonia, infection and sepsis. They also concluded that timing of surgery has no effect on neurological recovery and even early intervention may lead to a higher mortality and morbidity. They recommended the first 72-hours of the spinal injury as the best time of intervention. Biglari et al18 study was one of the few studies that proposed the first 4-hours as an early intervention time, however the authors recommended against it as the early (4-hours) vs late (4-24-hours) decompression showed no significant differencein neurological outcome. However, there were important limitations to discuss, such as being a single center prospective study with a limited 3-6,9,10 sample size (51 patients). Konieczny et al also found that early (≤ 72-hours) surgery had a significantly higher mortality rate and recommended to select the patients more carefully for early decompression surgery.

Few authors believed that the patients with central cord syndrome (CCS) may have long-term neurological recovery, regardless of the treatment. As opposed to our case report, a prospective 12-months follow-up showed an impairment in ASIA motor score and neurological outcome in patients who were treated in the early stage of the injury (first 8-hours) in comparison

with the interventions during 8-24-hours after the injury.22

To the best of our knowledge, this is a very rare operation that was conducted in an ultra-early stage (3-hours) of the injury. Although it was conducted in a context of limited medical facilities, an excellent result at the 12-month follow-up ensued, raising awareness for the possible benefits of this approach.

Consent

The authors have received written informed consent from the patient.

Conflict Of Interest

The authors declare that they have no conflicts of interest.

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