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The Reliability and Validity of the Thoracolumbar Injury Classification System in Pediatric Spine Trauma
Jason W Savage1, Timothy A Moore, Paul M Arnold
1*Department of Orthopaedic Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL †Department of Orthopaedic Surgery, Case Western Reserve, MetroHealth, Cleveland, OH ‡Department of Neurological Surgery, University of Kansas City, Kansas City, KS §Department of Orthopaedic Surgery, SUNY Upstate University Hospital, Syracuse, NY ¶Department of Orthopaedic Surgery, Arkansas Specialty Orthopaedics, Little Rock ∥Department of Orthopaedic Surgery, Thomas Jefferson University, Rothman Institute, Philadelphia, PA **Department of Orthopaedic Surgery, University of Louisville, Norton Leatherman Spine Center, Louisville, KY; and ††Department of Orthopaedic Surgery, University of Wisconsin-Madison, Madison.
Insights
The Thoracolumbar Injury Classification System (TLICS) shows good reliability and validity for pediatric spine trauma. While effective for categorizing injuries, modifications may enhance treatment guidance in children.
Area of Science:
- Spine Trauma Research
- Pediatric Orthopedics
- Clinical Classification Systems
Background:
- The Thoracolumbar Injury Classification System (TLICS) was developed to standardize thoracolumbar trauma assessment.
- Previous studies indicate good reliability and validity of TLICS in adult populations.
- The applicability of TLICS in pediatric populations requires further investigation.
Purpose of the Study:
- To evaluate the reliability and validity of the TLICS in the context of pediatric spine trauma.
- To assess the system's effectiveness in categorizing and guiding management for thoracolumbar fractures in children.
Main Methods:
- Prospective evaluation of 20 pediatric thoracolumbar fractures using the TLICS.
- Inter-rater and intra-rater reliability assessed via Cohen unweighted κ coefficients and Spearman rank correlation.
- Validity determined by comparing TLICS-recommended management with actual clinical treatment.
Main Results:
- Moderate to substantial inter-rater reliability (κ = 0.524-0.958) and excellent intra-rater reliability (κ = 0.748-1.000) were observed for TLICS parameters.
- The system demonstrated good overall validity, with 80.3% correct classification, 0.836 sensitivity, and 0.785 specificity.
- Inter-rater reliability for management prediction and validity indices were lower than in adult studies.
Conclusions:
- The TLICS is a reliable and valid tool for categorizing thoracolumbar injuries in pediatric patients.
- Lower inter-rater reliability in management prediction suggests potential differences in pediatric treatment protocols.
- Modifications to the TLICS may be beneficial for optimizing treatment guidance in pediatric spine trauma.
Study Design:
The thoracolumbar injury classification system (TLICS) was evaluated in 20 consecutive pediatric spine trauma cases.
Objective:
The purpose of this study was to determine the reliability and validity of the TLICS in pediatric spine trauma.
Summary Of Background Data:
The TLICS was developed to improve the categorization and management of thoracolumbar trauma. TLICS has been shown to have good reliability and validity in the adult population.
Methods:
The clinical and radiographical findings of 20 pediatric thoracolumbar fractures were prospectively presented to 20 surgeons with disparate levels of training and experience with spinal trauma. These injuries were consecutively scored using the TLICS. Cohen unweighted κ coefficients and Spearman rank order correlation values were calculated for the key parameters (injury morphology, status of posterior ligamentous complex, neurological status, TLICS total score, and proposed management) to assess the inter-rater reliabilities. Five surgeons scored the same cases 3 months later to assess the intra-rater reliability. The actual management of each case was then compared with the treatment recommended by the TLICS algorithm to assess validity.
Results:
The inter-rater κ statistics of all subgroups (injury morphology, status of the posterior ligamentous complex, neurological status, TLICS total score, and proposed treatment) were within the range of moderate to substantial reproducibility (0.524-0.958). All subgroups had excellent intra-rater reliability (0.748-1.000). The various indices for validity were calculated (80.3% correct, 0.836 sensitivity, 0.785 specificity, 0.676 positive predictive value, 0.899 negative predictive value). Overall, TLICS demonstrated good validity.
Conclusion:
The TLICS has good reliability and validity when used in the pediatric population. The inter-rater reliability of predicting management and indices for validity are lower than those in adults with thoracolumbar fractures, which is likely due to differences in the way children are treated for certain types of injuries. TLICS can be used to reliably categorize thoracolumbar injuries in the pediatric population; however, modifications may be needed to better guide treatment in this specific patient population.
Level Of Evidence:
4.
