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Fig. 3 | BMC Musculoskeletal Disorders

Fig. 3

From: Comparison between single-segment Isobar EVO dynamic stabilization and Isobar TTL dynamic stabilization in the treatment of lumbar degenerative diseases: a single center retrospective study over 4 years

Fig. 3

A 48-year-old woman had disc herniation at L5–S1, and the ROM of the surgical segment was 9° based on X-ray (A-B). The MRI of pre-operation showed that the disc signal of L4/5 and L5/S1 (C-E). She underwent fenestration decompression and posterior TTL dynamic fixation at L5-S1. The radiographs obtained 49 months after the operation showed the operative segment’s ROM was 2.5°, and the L4/5 ISH was slightly lost compared to preoperative. The L5/S1 ISH did not change significantly compared to preoperative, the L4/L5 disc signal was good, but there was slight bulging, the degree of spinal stenosis did not increase significantly compared to the pre-operation, and the UCLA classification changed from grade I to grade II. And there was no significant difference in the L5/S1 intervertebral disc signal from before surgery (F-J)

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BMC Musculoskeletal Disorders

ISSN: 1471-2474

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