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Related Experiment Videos

New universal instrumentation in spinal surgery.

Y Cotrel, J Dubousset, M Guillaumat

    Clinical Orthopaedics and Related Research
    |February 1, 1988
    PubMed
    Summary
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    Expert's comment concerning Grand Rounds case entitled "Intraspinal canal rod migration causing late-onset paraparesis 8 years after scoliosis surgery" (I. Obeid et al. Eur Spine J; 2014, DOI 10.1007/s00586-014-3367-y).

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    In vivo cervical intervertebral disc characterisation by elastography.

    Computer methods in biomechanics and biomedical engineering·2014
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    A new technic for segmental spinal osteosynthesis using the posterior approach.

    Orthopaedics & traumatology, surgery & research : OTSR·2014
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    Analysis of idiopathic scoliosis progression by using numerical simulation.

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    Delayed-iatrogenic injury of the thoracic aorta by an anterior spinal instrumentation.

    European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·2009
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    Analysis of the mechanisms of idiopathic scoliosis progression using finite element simulation.

    Studies in health technology and informatics·2008

    This study introduces a novel spinal instrumentation for posterior surgery, enabling precise correction of scoliosis and other spinal deformities. The system achieved significant correction rates and allowed patients to forgo external support post-surgery.

    Area of Science:

    • Orthopedic surgery
    • Spinal instrumentation
    • Biomechanical engineering

    Background:

    • Traditional spinal instrumentation methods often require external support post-surgery.
    • Existing techniques may have limitations in achieving three-dimensional correction and addressing complex spinal deformities.

    Purpose of the Study:

    • To introduce and evaluate a new metallic rod instrumentation for posterior spinal surgery.
    • To assess the efficacy of this system in correcting various spinal curvatures, including scoliosis.
    • To determine the need for postoperative external support and long-term correction stability.

    Main Methods:

    • Development of metallic rods with diamond-shaped asperities for versatile hook/screw placement.
    • Utilization of devices for transverse traction (DTTs) for stable construct assembly.

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  • Application of the technique in approximately 250 patients between 1983 and 1985, with follow-up data.

    • Main Results:

    • Mean correction of 66% for idiopathic scoliotic curvatures.
    • Significant improvement in sagittal plane deformities and apical derotation in flexible curves.
    • 77% correction of frontal deformation in paralytic curves with pelvic obliquity.
    • All patients were ambulatory within the first postoperative week without external support.

    Conclusions:

    • The novel spinal instrumentation provides effective three-dimensional correction for various spinal deformities.
    • The system's stability negates the need for postoperative external support.
    • High rates of correction and minimal angular loss were observed in long-term follow-up.