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Fig. 4 | BMC Musculoskeletal Disorders

Fig. 4

From: Effect and potential risks of using multilevel cement-augmented pedicle screw fixation in osteoporotic spine with lumbar degenerative disease

Fig. 4

Female, 69-year-old, T = − 3.4 SD a. the post-operation X-rays and CT showed the internal fixation was in good position and there was no screw loosening in L5 b. Seven months after the operation, the patient accidentally fell, MRI showed T12 acute osteoporotic vertebral compression fracture; c. the CT illustrated the pedicle screw was loosened in left L5 (arrow). The reason of screw loosening may be related to long segment fixation and stress concentration on the tail of the fixed segment when tumbled

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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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