[Instability of atlanto-axial complex in a boy with isolated odontoid process]. / Niestabilnosc szczytowo-obrotowa u dziecka z odosobnionym zebem obrotnika (os odontoideum).

The authors present a case of a 14-years old boy, in whom, after a mild trauma, massive signs of cervical spinal cord injury appeared. Isolated odontoid process with instability of atlanto-axial complex proved to be the cause. In course of therapy with methylprednisolone and rehabilitation full recovery was achieved. The operative management consisted in posterior interlaminar stabilization C1-C2 with autologous bone transplant and titanium cable (Sof'wire). The etiology of this disturbance is discussed and operation method is presented.

[A giant perineural root cyst in the sacral part of the spinal vertebrae]. / Olbrzymia torbiel korzeniowa (perineuralna) w odcinku krzyzowym kanalu kregowego.

In a 30-year-old female patient the cause of pain in lower extremities lasting for many years was a giant perineural cyst in the sacral part of the vertebral canal. After radical removal the cyst pain disappeared completely.