Research ArticleLumbar Spine

Development of New-Onset Cervical Deformity in Nonoperative Adult Spinal Deformity Patients With 2-Year Follow-Up

PETER G. PASSIAS, CYRUS M. JALAI, NANCY WORLEY, SHALEEN VIRA, JUSTIN K. SCHEER, JUSTIN S. SMITH, SUBARAMAN RAMACHANDRAN, ALEXANDRA SOROCEANU, SAMANTHA R. HORN, GREGORY W. POORMAN, THEMISTOCLES S. PROTOPSALTIS, ERIC O. KLINEBERG, DANIEL M. SCIUBBA, HAN JO KIM, D. KOJO HAMILTON, RENAUD LAFAGE, VIRGINIE LAFAGE, CHRISTOPHER P. AMES and INTERNATIONAL SPINE STUDY GROUP (ISSG)
International Journal of Spine Surgery December 2018, 12 (6) 725-734; DOI: https://doi.org/10.14444/5091

Article Figures & Data

Figures

  • Figure 1
    Figure 1

    Spinopelvic parameters: LL indicates lumbar lordosis; TK, thoracic kyphosis; PI, pelvic incidence; SS, sacral slope; PT, pelvic tilt; SVA, C7-S1 sagittal vertical axis; and CL, C1-C2 and C2-C7 cervical lordosis. The parameter of C7 slope is also depicted.

  • Figure 2
    Figure 2

    Distribution of new onset nonoperative cervical deformity cases at baseline and at 1 and 2 years. CD indicates cervical deformity; new, unique patients displaying new onset CD at 1 year (n = 18); sustained, patients with new-onset CD that persisted from 1 year to 2 years (n = 11); lost, patients whose new-onset CD corrected from 1-year to 2-year follow-up (n = 7).

  • Figure 3
    Figure 3

    Patient-reported health-related quality of life at baseline, 1-year follow-up, and 2-year follow-up for Oswestry Disability Index (ODI), and Short Form 36 (SF-36) physical and mental component scores for cervically aligned patients at baseline and those that developed new-onset cervical deformity at each year. Abbreviations: HRQoL, health-related quality of life; PCS, physical component score; MCS, mental component score; CA, cervically aligned; NewCD1Y, new-onset cervical deformity at 1 year; NewCD2Y, new-onset cervical deformity at 2 years.

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Development of New-Onset Cervical Deformity in Nonoperative Adult Spinal Deformity Patients With 2-Year Follow-Up
PETER G. PASSIAS, CYRUS M. JALAI, NANCY WORLEY, SHALEEN VIRA, JUSTIN K. SCHEER, JUSTIN S. SMITH, SUBARAMAN RAMACHANDRAN, ALEXANDRA SOROCEANU, SAMANTHA R. HORN, GREGORY W. POORMAN, THEMISTOCLES S. PROTOPSALTIS, ERIC O. KLINEBERG, DANIEL M. SCIUBBA, HAN JO KIM, D. KOJO HAMILTON, RENAUD LAFAGE, VIRGINIE LAFAGE, CHRISTOPHER P. AMES, INTERNATIONAL SPINE STUDY GROUP (ISSG)
International Journal of Spine Surgery Dec 2018, 12 (6) 725-734; DOI: 10.14444/5091
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