Preexisting Spinal Problems That Increase Trauma Risk

a Ankylosing spondylitis b Forestier disease a Ankylosing spondylitis b Forestier disease

Effect Spine Injury

Fig. 14.18a In ankylosing spondylitis, also called Bech-terew disease, slowly progressive ossification of the complete ligamentous apparatus of the spinal column occurs. You have already seen the prototypical appearance of the "bamboo spine" in Fig. 8.44b, p. 146. Note the fracture at the C6/7 level after a minor trauma in this patient. b In Forestier disease only the anterior longitudinal ligament of the spinal column ossifies, but the effect is the same: the spine loses all its elasticity. Every motion that results in any significant axial loading force on the spine constitutes a considerable fracture risk for these patients. Minor trauma has led to a fracture of the C7 in this case.

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