Epileptic seizures can produce dislocations or fractures of the limbs
and vertebral compression fractures. We tried to determine the clinica
l and radiological features of the latter in 8 patients: 6 men and 2 w
omen including one aged only 41 years. The often multiple compression
fractures involved the first thoracic (n=3) and the intermediate thora
cic (n=3) or lower lumbar (n=2) vertebrae but, contrary to common oste
oporosis, never the thoracolumbar hinge. In 2 cases, the appearance of
the fracture and the neurological signs led to surgery. Posterior dis
location of the shoulder was associated with the fractures in 2 cases.
Chronic alcoholism (4 cases), anti-epileptic drugs (1 case) or cortic
osteroids (1 case) might have facilitated a demineralization which was
however not obvious on X-ray films. The seizure was a first ever even
t in 6 cases. In the absence of controls the fracture was considered t
o be spontaneous. These particularities explain why a metastatic compr
ession fracture was initially suspected in 3 cases, leading to explora
tions which sometimes were aggressive. In the presence of a suspicious
vertebral compression fracture the clinician must consider the possib
ility of an epileptic seizure, a trauma which is sufficient to explain
the fracture, as shown by the complications of electro-convulsive the
rapy.