[Experiences with lumbar disc herniations in adolescents]

Epidemiology of Lumbar Degenerative Phenotypes of Children and Adolescents: A Large-Scale Imaging Study

STUDY DESIGN

Cross-sectional study.

OBJECTIVE

Recently, there has been a rise in children and adolescents developing low back pain and/or sciatica. Degenerative lumbar spine MRI phenotypes can occur in this population but reports have been sporadic and the true incidence of such spine changes remains debatable. As such, the study aimed to address the epidemiology of MRI phenotypes of the lumbar spine in this young population.

METHODS

597 children and adolescents with lumbar MRIs were included in the study. T1- and T2-weighted lumbar images from L1/2 to L5/S1 were analyzed in axial and sagittal planes. Global phenotype assessment was performed of each level and based on established nomenclature protocols.

RESULTS

The cohort consisted of 57.3% (342) boys and 42.7% (255) girls, with a mean age of 10.75 ± 5.25 years (range: 0 to 18 years). The prevalence of imaging findings of lumbar disc degeneration (LDD) and lumbar disc herniation (LDH) were 2.2% (95% CI: 0.93-3.43) and 5.8% (95%CI: 2.58-8.99), respectively. There was significant difference between each disc segment from L1/2 to L5/S1 for both LDD and LDH. Schmorl's nodes were noted in 16 cases (2.7%, youngest case as 15 years), with 11 boys (68.8%) and most frequent segment as L3/4. Modic changes and high-intensity zones were absent in this cohort.

CONCLUSIONS

LDD can emerge as early as the first decade of life with Schmorl's nodes, without additional specific phenotypes, including Modic changes and high-intensity zones. The study provides valuable information of a unique age group that is often under-represented but equally important as adults.

[Trauma of the spine and intervertebral disk. A challenge for the expert in compensation claims after sustained "trifle trauma"]

In the literature, the association between chronic pain syndromes of the spine and sustained "trifle trauma" is a matter of controversy. "Trifle trauma" is identified as a contusion, compression and/or sprain without a definite, acute imaging sign of injury to the bone, the disk or the ligaments of the spine. Most of the time, striking isolated changes to the intervertebral disks are interpreted as preexisting without relevance to an acute injury. However, complex chronic pain syndromes causing permanent and significant functional limitations in daily life and work may occur. Besides the diagnostic and therapeutic challenge for the treating physician, the expert confronted with compensation claims very often has to answer questions as to whether "trifle trauma" of the spine may lead to significant and permanent functional limitations or loss with chronic pain syndromes, and what the importance of possible isolated changes in intervertebral disks is. The data from literature dealing with this topic is contradictory and deficient. In this article, we critically examine the causality between "trifle trauma" to the spine and possible permanent chronic complaints based on currently available data from the literature in order to support the process of decision making in questions of litigation and controversial compensation claims.