• Eur Spine J · Jan 2020

    Curve progression in de novo degenerative lumbar scoliosis combined with degenerative segment disease after short-segment fusion.

    • Yongqiang Wang, Ang Gao, Enhamujiang Hudabardiy, and Miao Yu.
    • Department of Orthopaedics, Peking University Third Hospital, No. 49 North Garden Road, Haidian District, Beijing, 100191, China.
    • Eur Spine J. 2020 Jan 1; 29 (1): 85-92.

    PurposeTo validate the reliability of Berjano and Lamartina classification system of surgical planning in cases of de novo degenerative lumbar scoliosis (DNDLS) combined with degenerative segment disease and identify factors contributing to curve progression.MethodsFifty-four cases of type I or II DNDLS were retrospectively reviewed. Health-related quality of life (HRQOL) was assessed using visual analogue scale (VAS) scores for the back and leg, Oswestry Disability Index (ODI), and Japanese Orthopaedic Association (JOA) scores. Radiographic parameters were obtained from X-rays. Improvements in HRQOL were confirmed by a paired t test. Changes in radiographic parameters were confirmed by paired t test and Wilcoxon signed-rank test. Clinical relevance between spinopelvic parameters and Cobb angle progression was analyzed by Spearman correlation coefficient.ResultsThe mean follow-up period was 36.8 ± 14.8 months. The scores taken preoperatively versus at the last follow-up were as follows: mean VAS back score, 4.5 ± 2.4 versus 1.8 ± 1.5 (p < 0.01); and mean VAS leg score, 5.2 ± 2.5 versus 1.7 ± 2.1 (p < 0.01). The ODI score improved from 25.3 ± 8.9% to 10.1 ± 5.4% (p < 0.01), whereas the mean JOA score improved from 14.3 ± 4.9 to 21.0 ± 3.7 (p < 0.01). The mean Cobb angle decreased from 17.1° ± 7.4° to 9.4° ± 4.5° postoperatively but worsened to 14.1° ± 6.4° at the last follow-up with a mean progression of 2.1° per year. Cobb angle correction was lost at a mean 2.1° ± 3.3° per year with correlation to T1 pelvic angle and sagittal vertical axis preoperatively.ConclusionsSelective decompression and short-segment fusion were effective for treating type I and II cases DNDLS. The Cobb angle increased relative to preoperative sagittal spine alignment. These slides can be retrieved under Electronic Supplementary Material.

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