Circumferential Bone Fusion in Adult Spinal Deformity via Combination of Oblique Lateral Interbody Fusion and Grade 2 Posterior Column Osteotomy

Amir F. Zakaria, Shinjiro Kaneko, Hiroki Takeda, Sota Nagai, Soya Kawabata, Daiki Ikeda, Nobuyuki Fujita, Yoshiyuki Yato, Takashi Asazuma

研究成果: Article査読

抄録

Study Design: Retrospective study Objectives: The combination of oblique lateral interbody fusion (OLIF) with grade 2 posterior column osteotomy (PCO) is an effective treatment for adult spinal deformity. However, grade 2 PCO may lead to pseudoarthrosis because it involves complete removal of the bilateral posterior facet joints. The main study objective was to determine the achievement rate of anterior and posterolateral fusion resulting in circumferential fusion in patients who underwent combined OLIF and grade 2 PCO. Methods: This retrospective study included consecutive patients who underwent OLIF and grade 2 PCO. The group comprised a long fusion group, with fusion from the thoracic level to the ilium, and a short fusion group, with fusion within the lumbar region. The OLIF with percutaneous pedicle screw insertion group was also used for reference. The Brantigan–Steffee–Fraser classification was used to assess interbody fusion and Lenke classification for assessment of posterolateral fusion. Results: Sixty-six patients with 109 lumbar levels were included in the study. We observed 100% anterior fusion in all 3 groups. The fusion rate for posterolateral fusion between the OLIF-grade 2 PCO group was 97%, with very low (3%) non-circumferential fusion (pseudoarthrosis only at the osteotomy site). In most cases, solid posterolateral fusions (Lenke A) occurred within 24 months. Conclusions: The combination of OLIF and grade 2 PCO resulted in circumferential fusion for most (97%) of the cases within 24 months. OLIF and grade 2 PCO are considered a good combination treatment to achieve sufficient lumbar lordosis and solid bone fusion.

本文言語English
ジャーナルGlobal Spine Journal
DOI
出版ステータスAccepted/In press - 2022

All Science Journal Classification (ASJC) codes

  • 外科
  • 整形外科およびスポーツ医学
  • 臨床神経学

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