PMC4365582_01
Axial view of a preoperative MRI showing changes due to a prior L5-S1 left hemilaminectomy with some degree of left facet degeneration.
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The patient's preoperative imaging also did not reveal important facet disease, except for some asymptomatic postoperative changes in the left facet associated with prior laminectomy (Figure 1).
(a) Lateral and (b) anteroposterior postoperative lumbar x-rays showing proper positioning of the SB Charite III at the L5-S1 level.
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Anteroposterior and lateral radiography demonstrated proper positioning of the arthroplasty device (Figure 2).
Lateral view of the lumbar spine showing a 6  range of motion in (a) extension and (b) flexion following posterior dynamic stabilization with titanium rods in the presence of a previously implanted Charite disc.
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Follow-up radiographs of her lumbar spine show a 6  range of motion preservation in flexion and extension at three months (Figure 3).