Spinal Cord Injuries

Chapter 16 Spinal Cord Injuries



Acute spinal cord injuries



Introduction




A spinal cord injury (SCI) is a traumatic event for both the patient and their family and it provides a multifactorial challenge to health care staff.


It is fortunately a relatively rare presentation, with approximately 800–1000 new cases per year and an estimated 40 000 people living with an SCI in the UK (Kennedy 1998, Nichols et al 2005, Harrison 2007).


When compared to other neurological disorders, such as a cerebrovascular accident (CVA) – 150 000 cases/year in the UK (Carroll et al 2001), the chances of a student or Band 5 physiotherapist encountering a SCI patient outside of a specialist centre is slim.


However, it is this unfamiliarity with the presentation that can be particularly daunting to a physiotherapist of any grade.


Most new cases of SCI first present to a district general hospital via accident and emergency.


The National Service Framework for Long Term Conditions (Department of Health 2005) suggests a minimum standard of up to 24 hours of diagnosis and transfer within the first 48 hours; admission to a specialist centre is likely to be delayed by concerns around medical stability and bed availability (Harrison 2007).


Patients with an established injury are also likely to be admitted to their local hospital during periods of acute deterioration or other periods of illness.


Some patients with dual diagnoses, e.g. SCI and a traumatic brain injury may never reach an SCI centre.


This can also be the case with some patients that have non-traumatic spinal cord impairments.


As such, the initial management will invariably be provided by a therapist with a generalised experience or no previous experience of working with patients that have incurred a spinal cord injury.


In addition to the management required during the acute phase, immediately post injury, the patient will require longer-term rehabilitation.


If the patient has been managed in a SCI centre during the acute phase they will require their care to be transferred to a hospital/service closer to their home, for management of their progression or maintenance of their presentation.


This may include physiotherapy rehabilitation.


With the muscle imbalance and overuse characteristics inherent in SCI, complaints of a musculoskeletal nature are also common (Bromley 2006).


Thus, a physiotherapist is likely to be required to manage the care of a SCI patient in a number of different circumstances at some time in their career, regardless of their background being respiratory, neurological or musculoskeletal.


It is therefore in a therapist’s interest to develop a basic understanding of the presentation and needs of this patient population, and more importantly, a knowledge of where to seek and access assistance in the sometimes complex and challenging care that these patients need to receive.


Therapists encountering patients with SCI for the first time can feel concerned that they do not have the appropriate clinical skills or knowledge to effectively manage this patient group.


However it is important to stress at this point that a therapist should not consider that they are managing a patient in isolation.


Specific advice should always be sought from SCI centres to ensure the patient is being managed in the best possible way and this will ensure that the therapist develops their experience, expertise and confidence in an appropriate way.


Most SCI centres aim to provide acute outreach teams, either in person and/or via phone to advise, educate and support peer professionals.


This service has been shown to improve referral times and reduce the incidence or severity of preventable complications prior to a patient’s transfer (Harrison 2001, 2007).


It cannot be emphasised enough that the information included in this book does not propose to replace the specific individualised advice that can be obtained from contacting specialists in the field of SCI management based in the 11 SCI centres in the UK (Appendix 16.1).


However, the assessment of a patient with a spinal cord injury follows a fundamental construct, using the skills of assessment that are common to all physiotherapists, and the information obtained will provide the basis of the patient’s planned management.


The aim of this text is to demonstrate to a therapist new to the field that they already have many skills to assess and manage this presentation and with some background knowledge and slight adjustment to the delivery, a competent and effective delivery of care is achievable for an otherwise challenging presentation.



General considerations during the assessment of acute SCI





Mechanism and demographics




The most common mechanism for a traumatic SCI is a sudden impact or deceleration whereby the forces are transmitted through the spinal column. Velocity is not related to the existence of injury, but will affect the extent of injury if one is to occur (Ravichandran 1990).


Road traffic accidents, falls and injuries from participating in sport are the most common causes of SCI.


Incidence of SCI in the British Isles is outlined in Table 16.1.


Up to 50% of injuries from a motor vehicle collision will also present with multi-trauma, including multiple level spinal injury, limb fracture, abdominal, chest, facial or head injury or significant soft tissue trauma (Prasad et al 1999).


Non-traumatic causes, e.g. neoplasm, infarct, infection, have been estimated at being 20% of the total prevalence (Harrison 2007).


In a 5-year prospective study of the Irish National Spinal Unit between 1999 and 2003, Lenehan et al (2009) reported 73% of admissions were male, with an average age of 32 years.


The majority were injuries to the cervical spine (51%), followed by lumbar (28%) and thoracic (21%).


One third had a complete spinal injury on admission.


Previously, the condition was predominantly seen in young men, but as the population ages and remains more active, there has been a discernable increase in the number of older people with SCI (Nichols et al 2005).


Paralysis most frequently occurs in traumatic SCI when instability and damage to the spinal column leads to disruption of the spinal cord.


‘Severance’ or ‘cutting’ of the spinal cord rarely occurs outside of stabbing or gunshot injuries.


More commonly, compression of the spinal cord resulting in ischaemic necrosis and swelling, leads to the formation of the impairment (Harrison 2007).


It is thus difficult to predict the finality of the impairment, as the oedema and spinal shock can progress or resolve over time, with subsequent changes in neurological impairment (Ravichandran 1990).


Table 16.1 Causes of SCI in the United Kingdom & Ireland (O’Connor and Murray 2006)





















Cause of injury Number of SCI centre admissions
Fall 24
Motor vehicle collision 23
Sport/recreation 4
Knocked over (e.g. falling object) 1
Other 1


Initial management




The spinal cord injured patient will present with a wide range of impairments that may include all of the body systems.


Patients with an acute SCI will need specific management to stabilise the injury site and maintain the function of the vital systems of the body to prevent complications from occurring.


Upon arrival to A&E, assessment of the person with suspected spinal cord injury will commence immediately by the medical team.


Once vital signs and life-threatening concerns are dealt with, the doctor will assess the injury, looking for obvious signs of spinal injury, such as spinal deformity and pain on palpation, loss or altered power or sensation and bladder and bowel disturbance (Harrison 2007).


There will typically follow a request for a spinal X-ray, computed tomography (CT) and magnetic resonance imaging (MRI) of the affected area to determine stability of the fracture and the extent of spinal cord damage.


Clinically, this will be paralleled with a test to determine neurological level and the degree of completeness.


The American Spinal Injury Association (ASIA) developed a classification which has been adopted internationally, to assess and monitor the spinal cord injury (Figure 16.1).


The motor assessment assesses 10 key muscles bilaterally (5 in the upper limb, 5 in the lower limb) whilst the sensory assessment assesses each dermatome bilaterally using standardised anatomical landmarks for light touch and pin prick sensation.


Combined together this information determines the neurological level of injury, the completeness of injury and the syndrome (if an incomplete injury is diagnosed).


The ‘neurological level’ is defined as ‘the lowest segment where motor and sensory function is normal on both sides’ (ASIA 2001) or in other words, the last level of normal neurological function.


This does not always correspond to the level of vertebral injury.


The higher the injury level, the greater the number of bodily functions that will be adversely affected.


Patients with incomplete spinal cord injuries may experience more pain and muscle imbalance than a patient with a complete lesion at the same level.


The neurological level may change over time as the swelling or bleeding within the spinal cord develops.


Should the level ascend, it will be an important indicator of the potential progression of a disease or the onset of a complication.


This can occur in both acutely injured and established patients.


Thus subjective reporting and clinical monitoring are vitally important in identifying the frequency with which the assessment monitoring should be carried out.




Definitions of complete and incomplete SCI










Nov 5, 2016 | Posted by in MANUAL THERAPIST | Comments Off on Spinal Cord Injuries

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