Question juridique clé
Whether the lumbar spine complaints and disc herniation were causally related to the accidents
Solution extraite
The lumbar spine complaints were not accident-caused at the time of closure; the 2001 event only triggered a temporary aggravation of a pre-existing degenerative condition.
Motifs extraits
The accident was not sufficiently severe to cause a disc herniation; the record showed significant degenerative spinal changes, and medical experience indicates that disc herniations with degenerative changes are usually not caused by minor trauma.