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Expandable versus static cages in unilateral biportal endoscopy lumbar interbody fusion (ULIF) for treating degenerative lumbar spondylolisthesis (DLS): comparison of clinical and radiological results – Lumbar Fusion

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A study published in the Journal of Orthopedic Surgery Research compared the clinical and radiological outcomes of unilateral portal endoscopic lumbar interbody fusion (ULIF) for degenerative lumbar spondylolisthesis (DLS) using expandable cages versus static cages. The researchers retrospectively analyzed patients who underwent ULIF treatment from May 2019 to February 2021 and categorized them based on the type of cage used. The results showed that the patients in the expandable cage group had superior outcomes in terms of VAS scores for low back and leg pain, ODI scores, segmental angle, PDH, and fusion rate compared to the static cage group. The study suggests that ULIF using expandable cages can effectively treat mild lumbar spondylolisthesis patients and provide advantages in restoring physiological curvature, increasing fusion rate, and relieving pain in the early postoperative period

Summarised by Mr Mo Akmal – Lead Spinal Surgeon
The London Spine Unit : most specialised spinal clinic in London

Published article

CONCLUSIONS: The results of this study showed that compared with the stable cage group, the expandable cage group had unique advantages in restoring the physiological curvature of the lumbar spine, increasing the fusion rate, and relieving pain in the early postoperative period. ULIF can be used to treat single-segment, mild lumbar spondylolisthesis patients using expandable cages instead of static cages.

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J Orthop Surg Res. 2023 Jul 17;18(1):505. doi: 10.1186/s13018-023-03979-z.ABSTRACTBACKGROUND: In recent years, early rehabilitation after spinal fusion and the recovery of physiological curvature have attracted much attention. Therefore, expandable cages have entered the field of vision of scientists. The goal of the current study was to compare the clinical and radiological results of unilateral portal,

J Orthop Surg Res. 2023 Jul 17;18(1):505. doi: 10.1186/s13018-023-03979-z.

ABSTRACT

BACKGROUND: In recent years, early rehabilitation after spinal fusion and the recovery of physiological curvature have attracted much attention. Therefore, expandable cages have entered the field of vision of scientists. The goal of the current study was to compare the clinical and radiological results of unilateral portal endoscopic lumbar interbody fusion (ULIF) in the treatment of degenerative lumbar spondylolisthesis (DLS) with expandable versus static cages.

METHODS: We retrospectively analysed patients who received ULIF treatment for DLS from May 2019 to February 2021. Patients were categorized by cage type (static vs. expandable), and the main study was the preop and postop clinical and radiological index changes of the patients.

RESULTS: Eighty-four patients were included (38 in the static cages group; 46 in the expandable cages group). There was no difference in the preop results between the two groups. The VAS scores for low back and leg pain and ODI scores in the expandable cages group 7 d postop were significantly superior to those in the static cages group (P < 0.05), and the segmental angle and PDH in the expandable cages group postop were significantly higher than those in the static cages group (P < 0.05). The fusions at 6 m postop in the expandable cages group were superior to those in the Static Cages group (P < 0.05).

CONCLUSIONS: The results of this study showed that compared with the stable cage group, the expandable cage group had unique advantages in restoring the physiological curvature of the lumbar spine, increasing the fusion rate, and relieving pain in the early postoperative period. ULIF can be used to treat single-segment, mild lumbar spondylolisthesis patients using expandable cages instead of static cages.

PMID:37461049 | PMC:PMC10353249 | DOI:10.1186/s13018-023-03979-z

The London Spine Unit : most specialised spinal clinic in London

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Expandable versus static cages in unilateral biportal endoscopy lumbar interbody fusion (ULIF) for treating degenerative lumbar spondylolisthesis (DLS): comparison of clinical and radiological results

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J Orthop Surg Res. 2023 Jul 17;18(1):505. doi: 10.1186/s13018-023-03979-z.ABSTRACTBACKGROUND: In recent years, early rehabilitation after spinal fusion and the recovery of physiological curvature have attracted much attention. Therefore, expandable cages have entered the field of vision of scientists. The goal of the current study was to compare the clinical and radiological results of unilateral portal

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