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Spinal stenosis vs traumatic spinal cord injury: a rehabilitation outcome comparison
William O Mckinley1, Michael A Tewksbury, Nayyer M Mujteba
1Department of Physical Medicine and Rehabilitation, Virginia Commonwealth University/Medical College of Virginia Hospital, Richmond 23298, USA. wmckinle@hsc.vcu.edu
Objective:
Nontraumatic spinal cord injury (NT/SCI), which can occur secondary to spinal stenosis, has been shown to represent a significant proportion of individuals admitted for SCI rehabilitation. The objective of this study was to compare demographics and outcomes of patients with spinal stenosis-induced SCI (SS/SCI) with those with traumatic spinal cord injury (T/SCI) following inpatient rehabilitation.
Design:
This 7-year prospective review compared 81 patients with SS/SCI and 102 patients with T/SCI admitted to an SCI rehabilitation unit with similar levels and completeness of injury. Main outcome measures included rehabilitation hospital length of stay (LOS), Functional Independence Measure (FIM) scores, FIM change, FIM efficiency, rehabilitation charges, and discharge rates to home.
Results:
Results indicate that, when compared with the T/SCI, patients with SS/SCI had a significantly (P < .05) higher mean age (64.1 years vs 44.4 years), were more often female (39% vs 20%), and tended to present with paraplegia vs tetraplegia (69% vs 46%) and with motor incomplete SCI vs incomplete SCI (100% vs 49%). When comparing etiologies of SCI within tetraplegic and paraplegic groups, results showed that individuals with tetraplegic SS/SCI had a significantly (P < .05) shorter rehabilitation LOS (25.7 vs 35.9 days), and lower FIM change (24.5 vs 32.5) and FIM efficiency (1.0 vs 1.3); however, no statistical differences were noted for discharge FIM scores and discharge to home rates. Individuals with paraplegic SS/SCI also had significantly lower FIM change (20.2 vs 28.7); however no significant differences were noted for rehabilitation LOS, charges, FIM efficiency, or discharge-to-home rates.
Conclusions:
The findings indicate that patients with SS/SCI present with less severe clinical impairments (motor incomplete and paraplegia) in comparison with patients with T/SCI. Clinically similar SS/SCI groups were noted to achieve rates of functional gain and community discharge comparable with T/SCI patients. Although patients with T/SCI achieved greater overall functional improvement, patients with SS/SCI had shorter rehabilitation LOS and lower rehabilitation charges. These findings have important implications for the interdisciplinary rehabilitation process in the overall management and outcome of individuals with NT/SCI.