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Short-term clinical and radiographic evaluation of patients treated with expandable and static interbody spacers following lumbar lateral interbody fusion – Lumbar Spinal Stenosis

The study published in World Neurosurgery aimed to evaluate the outcomes of oblique lateral interbody fusion (OLIF) using either expandable or static interbody spacers in patients with degenerative disc disease. The research involved 35 patients who underwent one-level OLIF and were followed up for more than six months. The results showed that the expandable group had better outcomes in terms of cage height, lordosis, dural sac area expansion, correction of vertebral body slip, enlargement of the intervertebral foramen, and reduced cage subsidence compared to the static group. Patients in the expandable group also experienced significant improvement in clinical symptoms. This suggests that expandable spacers might be more beneficial in achieving good indirect decompression and improving clinical outcomes in patients undergoing OLIF

Summarised by Mr Mo Akmal – Lead Spinal Surgeon
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Published article

CONCLUSIONS: Compared with static spacers, expandable spacers significantly enlarged the dural sac area, corrected vertebral body slippage, expanded the intervertebral foramen, and achieved good indirect decompression while reducing cage subsidence, resulting in improvement in clinical symptoms.

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World Neurosurg. 2024 Mar 15:S1878-8750(24)00424-8. doi: 10.1016/j.wneu.2024.03.039. Online ahead of print.ABSTRACTOBJECTIVE: The goal of this study was to evaluate, using computed tomography (CT) and magnetic resonance imaging (MRI), patients who underwent oblique lateral interbody fusion (OLIF) using either expandable or static interbody spacers.METHODS: Thirty-five patients with degenerative disc disease were surgically treated with one-level OLIF,

World Neurosurg. 2024 Mar 15:S1878-8750(24)00424-8. doi: 10.1016/j.wneu.2024.03.039. Online ahead of print.

ABSTRACT

OBJECTIVE: The goal of this study was to evaluate, using computed tomography (CT) and magnetic resonance imaging (MRI), patients who underwent oblique lateral interbody fusion (OLIF) using either expandable or static interbody spacers.

METHODS: Thirty-five patients with degenerative disc disease were surgically treated with one-level OLIF and were followed up for more than six months. The Static group consisted of 22 patients, and 13 patients were in the Expandable group. Intraoperative findings included operative time (min), blood loss (ml), and cage size. Low back pain, leg pain, and leg numbness were measured using the Japanese Orthopedic Association score, visual analogue score, and the Roland-Morris Disability Questionnaire. Radiological evaluation using CT and MRI allowed measurement of cage subsidence, cross-sectional area (CSA) of the dural sac, disc height, segmental lordosis, foraminal height, and foraminal CSA preoperatively and six months postoperatively.

RESULTS: The Expandable group had significantly larger cage height and lordosis than the Static group (p < 0.05). The Expandable group also had greater dural sac area expansion and enlargement of the intervertebral foramen, as well as better correction of vertebral body slip (p < 0.05). Cage subsidence was significantly lower in the Expandable group (p < 0.05). JOA score and VAS for leg numbness were significantly better in the Expandable group (p < 0.05).

CONCLUSIONS: Compared with static spacers, expandable spacers significantly enlarged the dural sac area, corrected vertebral body slippage, expanded the intervertebral foramen, and achieved good indirect decompression while reducing cage subsidence, resulting in improvement in clinical symptoms.

PMID:38493893 | DOI:10.1016/j.wneu.2024.03.039

The London Spine Unit : most specialised treatment facility in the world

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Short-term clinical and radiographic evaluation of patients treated with expandable and static interbody spacers following lumbar lateral interbody fusion

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World Neurosurg. 2024 Mar 15:S1878-8750(24)00424-8. doi: 10.1016/j.wneu.2024.03.039. Online ahead of print.ABSTRACTOBJECTIVE: The goal of this study was to evaluate, using computed tomography (CT) and magnetic resonance imaging (MRI), patients who underwent oblique lateral interbody fusion (OLIF) using either expandable or static interbody spacers.METHODS: Thirty-five patients with degenerative disc disease were surgically treated with one-level OLIF

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