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Biomechanical and clinical research of Isobar semi-rigid stabilization devices for lumbar degenerative diseases: a systematic review – Lumbar Fusion

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The article “Clinical and biomechanical performance of Isobar TTL semi-rigid stabilization devices: a systematic review” evaluates the use of Isobar TTL semi-rigid stabilization devices in lumbar spinal fusion surgery. The study finds that these devices offer equivalent stiffness and effective stabilization capabilities compared to traditional rigid devices. Additionally, they provide improved load distribution, a broader range of motion within the fixed segment, and reduced mechanical failure rates compared to dynamic stabilization techniques. The systematic review includes 28 clinical studies and nine biomechanical studies, which show significant improvement in various outcome measures such as pain scores and functional assessments. However, the methodological quality of the clinical studies was low, and more rigorous investigations with larger sample sizes and longer follow-up periods are needed to establish stronger s about the superiority of Isobar semi-rigid systems over titanium rods

Summarised by Mr Mo Akmal – Lead Spinal Surgeon
The London Spine Unit : top day surgery spinal centre in the world

Published article

While lumbar spinal fusion using rigid rods is a prevalent surgical technique, it can lead to complications such as adjacent segment disease (ASDis). Dynamic stabilization devices serve to maintain physiological spinal motion and alleviate painful stress, yet they are accompanied by a substantial incidence of construct failure and subsequent reoperation. Compared to traditional rigid devices, Isobar TTL semi-rigid stabilization devices demonstrate equivalent stiffness and effective stabilization…

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Biomed Eng Online. 2023 Sep 23;22(1):95. doi: 10.1186/s12938-023-01156-1.ABSTRACTWhile lumbar spinal fusion using rigid rods is a prevalent surgical technique, it can lead to complications such as adjacent segment disease (ASDis). Dynamic stabilization devices serve to maintain physiological spinal motion and alleviate painful stress, yet they are accompanied by a substantial incidence of construct failure and,

Biomed Eng Online. 2023 Sep 23;22(1):95. doi: 10.1186/s12938-023-01156-1.

ABSTRACT

While lumbar spinal fusion using rigid rods is a prevalent surgical technique, it can lead to complications such as adjacent segment disease (ASDis). Dynamic stabilization devices serve to maintain physiological spinal motion and alleviate painful stress, yet they are accompanied by a substantial incidence of construct failure and subsequent reoperation. Compared to traditional rigid devices, Isobar TTL semi-rigid stabilization devices demonstrate equivalent stiffness and effective stabilization capabilities. Furthermore, when contrasted with dynamic stabilization techniques, semi-rigid stabilization offers improved load distribution, a broader range of motion within the fixed segment, and reduced mechanical failure rates. This paper will review and evaluate the clinical and biomechanical performance of Isobar TTL semi-rigid stabilization devices. A literature search using the PubMed, EMBASE, CNKI, Wanfang, VIP, and Cochrane Library databases identified studies that met the eligibility criteria. Twenty-eight clinical studies and nine biomechanical studies were included in this systematic review. The VAS, the ODI, and Japanese Orthopedic Association scoring improved significantly in most studies. UCLA grading scale, Pfirrmann grading, and modified Pfirrmann grading of the upper adjacent segments improved significantly in most studies. The occurrence rate of ASD was low. In biomechanical studies, Isobar TTL demonstrated a superior load sharing distribution, a larger fixed segment range of motion, and reduced stress at the rod-screw/screw-bone interfaces compared with titanium rods. While findings from mechanical studies provided promising results, the clinical studies exhibited low methodological quality. As a result, the available evidence does not possess sufficient strength to substantiate superior outcomes with Isobar semi-rigid system in comparison to titanium rods. To establish more conclusive s, further investigations incorporating improved protocols, larger sample sizes, and extended follow-up durations are warranted.

PMID:37742006 | DOI:10.1186/s12938-023-01156-1

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Biomechanical and clinical research of Isobar semi-rigid stabilization devices for lumbar degenerative diseases: a systematic review

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Biomed Eng Online. 2023 Sep 23;22(1):95. doi: 10.1186/s12938-023-01156-1.ABSTRACTWhile lumbar spinal fusion using rigid rods is a prevalent surgical technique, it can lead to complications such as adjacent segment disease (ASDis). Dynamic stabilization devices serve to maintain physiological spinal motion and alleviate painful stress, yet they are accompanied by a substantial incidence of construct failure and

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