Quality of life after spinal cord injury: Having independent mobility makes the greatest impact

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Quality
A paraplegic man in a wheelchair

Independence in mobility is the single most important factor affecting quality of life in patients with traumatic spinal cord injury, reports a study in the American Journal of Physical Medicine & Rehabilitation, the official journal of the Association of Academic Physiatrists.

Based on validated clinical questionnaires, the study by Julien Goulet and colleagues (Hôpital du Sacré-Coeur de Montréal, Montréal, Canada) is the first objective evaluation of the relative importance of specific functional abilities following traumatic spinal cord injury. “Our findings could help clinicians to guide the rehabilitation plan based on importance of specific functional abilities in relationship with health-related quality of life,” the researchers write.

Study shows different priorities for traumatic spinal cord injury patients with tetraplegia versus paraplegia

The study included 195 patients with traumatic spinal cord injury admitted to the authors’ specialised trauma centre between 2010 and 2016. Most were injured in falls or motor vehicle accidents; about 65% were tetraplegic, with paralysis of both the upper and lower limbs; and 35% were paraplegic, with paralysis of the lower limbs only.

Six to 12 months after injury, the patients completed a standard questionnaire (Spinal Cord Independence Measure, or SCIM) to evaluate the level of independence in 19 functional abilities related to activities of daily living. Another questionnaire (Short Form-36) was used to assess health-related quality of life, including physical and mental components. Quality of life has become a major focus of outcome evaluation for patients with spinal cord injury and other chronic conditions.

Associations between these widely used questionnaires were analysed to determine which areas of functional ability had the greatest impact on quality of life after traumatic spinal cord injury. As in previous studies, total scores on the SCIM and quality assessments were significantly correlated with each other.

The study revealed some differences in the most important functional abilities for traumatic spinal cord injury patients with tetraplegia versus paraplegia. Overall, factors on the mobility subscale of the SCIM had the largest effect on the physical component of quality of life, followed by the self-care and respiration/sphincter management subscales. This trend was strongest among tetraplegic patients.

In contrast, for paraplegic patients, mobility was the only SCIM subscale significantly correlated with the physical quality of life score. That was consistent with previous studies reporting the high priority for walking among traumatic spinal cord injury patients with paraplegia.

In both groups, indoor and outdoor mobility was more important for physical quality of life, compared to other measures of mobility (such as managing stairs or transferring from bed to wheelchair). The greater importance of self-care abilities in traumatic spinal cord injury patients with tetraplegia reflected the importance of arm and hand function for daily activities like bathing, dressing, and grooming.

Scores for functional abilities on the SCIM were not strongly related to the mental component of quality of life. “These findings suggest that mental health after a traumatic spinal cord injury strongly depends on other factors that were not considered in the current study,” the researchers write.

Previous studies have evaluated the importance of different functional abilities after spinal cord injury, but have mainly relied on subjective patient assessments. The new study provides a more objective look at the factors most important to quality of life for traumatic spinal cord injury patients with injury to different spinal cord levels.

“Our study showed that it is of paramount importance to analyse tetraplegic and paraplegic patients distinctly when evaluating the impact of function on quality of life,” Goulet and co-authors write. “Different priorities for patients lead to distinct goals in the rehabilitation effort.”

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