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Do presence and location of annular tear influence clinical outcome after lumbar total disc arthroplasty? A prospective 1-year follow-up study

James J. Yue, Connor Telles, Thomas P. Schlösser, Shawn Hermenau, Ravi Ramachandran and William D. Long
International Journal of Spine Surgery January 2012, 6 13-17; DOI: https://doi.org/10.1016/j.ijsp.2011.09.001

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Figures

  • Fig. 1
    Fig. 1

    Examples of 3 different anatomic locations of annular tears on MRI: central, paracentral, and lateral. The location of annular tears was defined in the same way herniations of the intervertebral disc are defined.

  • Fig. 2
    Fig. 2

    Mean ODI scores (shown as percentages) in patients with annular tears (divided into 3 cohorts based on tear location) and patients without annular tears. Data were prospectively compiled before and 12 months after total lumbar disc replacement.

  • Fig. 3
    Fig. 3

    Mean VAS scores for back pain in patients with annular tears (divided into 3 cohorts based on tear location) and patients without annular tears. Data were prospectively compiled before and 12 months after total lumbar disc replacement.

  • Fig. 4
    Fig. 4

    Mean VAS scores for leg pain in patients with annular tears (divided into 3 cohorts based on tear location) and patients without annular tears. Data were prospectively compiled before and 12 months after total lumbar disc replacement.

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Do presence and location of annular tear influence clinical outcome after lumbar total disc arthroplasty? A prospective 1-year follow-up study
James J. Yue, Connor Telles, Thomas P. Schlösser, Shawn Hermenau, Ravi Ramachandran, William D. Long
International Journal of Spine Surgery Jan 2012, 6 13-17; DOI: 10.1016/j.ijsp.2011.09.001
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