Abstract
Background: Upper extremity (UE) pain/pathology is commonly reported in individuals with spinal cord injury (SCI); however, surveys account for much of the data and thus don’t necessarily reflect frequency of diagnosis.
Objective: The purpose of this study is to determine the first instance of clinically diagnosed UE pain/pathology in individuals with traumatic SCI in Olmsted County, MN.
Design: A retrospective chart review was completed using a medical record linkage system (the Rochester Epidemiology Project (REP) for Olmsted County, MN and surrounding areas) and associated medical records dating 1976–2016.
Methods: Potential subjects were identified with SCI diagnosis codes occurring during the study period, 1976–2016. Traumatic SCI was confirmed by searching the REP and medical records. Time following confirmed SCI and within the study period was reviewed in the REP to identify clinical diagnoses suggesting UE pain/pathology not directly related to the traumatic event leading to SCI. The medical record was reviewed to confirm a diagnosis of UE pain/pathology. Primary outcomes include: (1) proportion of individuals with traumatic SCI who had a confirmed UE pain/pathology diagnosis during the study period and (2) median pain-free time following SCI determined by Kaplan Meier survival analysis.
Results observed: Eighty-two individuals were confirmed to have traumatic SCI (median age: 34 years [range 18–84], 77% male). SCI was classified by neurological level of injury (39% with paraplegia, 61% with tetraplegia) and ASIA impairment scale grade (32% A, 16% B, 17% C, 30% D, and 5% unable to determine). Median follow-up time available after SCI was 10.7 years (range: 1 week to 38.8 years). Fifty percent of the cohort had clinical diagnoses of UE pain/pathology during the available follow-up period. Median pain-free time was 7.7 years (95% CI:4.5–13.7).
Conclusions: Results of this study demonstrate the importance of healthcare providers screening for UE pain/pathology in patients with traumatic SCI. It additionally provides context for when patients are likely to start experiencing difficulty, which can guide both prevention and timely diagnosis.
Support: This study was made possible using the resources of the Rochester Epidemiology Project, which is supported by the National Institute on Aging of the National Institutes of Health (NIH) under Award Number R01AG034676. The content is solely the responsibility of the authors and does not necessarily represent the official views of the NIH.
Keywords: Upper extremity, Pain, Pathology, Spinal cord injury, Epidemiology
