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논문 기본 정보

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학술저널
저자정보
Eugene Pak-Lin Ng (Kwong Wah Hospital Hong Kong) Andrew Siu-Leung Yip (Kwong Wah Hospital Hong Kong) Keith Hay-Man Wan (Kwong Wah Hospital Hong Kong) Michael Siu Hei Tse (Orthopaedics and Traumatology Kwong Wah Hospital Hong Kong) Kam Kwong Wong (Orthopaedics and Traumatology Kwong Wah Hospital Hong Kong) Tik-Koon Kwok (Kwong Wah Hospital Hong Kong) Wing Cheung Wong (Orthopaedics and Traumatology Kwong Wah Hospital Hong Kong)
저널정보
대한척추외과학회 Asian Spine Journal Asian Spine Journal Vol.13 No.2
발행연도
2019.1
수록면
225 - 232 (8page)

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Study Design: A retrospective review of patients who underwent 2-level anterior cervical discectomy and fusion (ACDF) with stand-alone polyetheretherketone (PEEK) cages for cervical spondylotic myelopathy (CSM). Purpose: To evaluate the efficacy of stand-alone PEEK cage in 2-level cervical interbody fusion for CSM. Overview of Literature: ACDF is a standard surgical procedure to treat degenerative disc disease. However, the use of additional anterior plating for 2-level ACDF remains controversial. Methods: We reviewed outcomes of patients who underwent 2-level ACDF with stand-alone PEEK cages for CSM over a 7-year period (2007–2015) in a regional hospital. Japanese Orthopaedic Association (JOA) score, fusion rate, subsidence rate, cage migration, and cervical alignment by the C2–7 angle as well as the local segmental angle (LSA) of the cervical spine were assessed. Results: In total, 31 patients (mean age, 59 years; range, 36–87 years) underwent 2-level ACDF with a cage-only construct procedure between 2007 and 2015. The minimum follow-up was 24 months; mean follow-up was 51 months. C3–5 fusion was performed in 45%, C4–6 fusion in 32%, and C5–7 fusion in 23%. Mean JOA score improved from 10.1±2.2 to 13.9±2.1 (p<0.01) at the 24-month follow-up. Fusion was achieved in all patients. Subsidence occurred in 22.5% of the cages but was not associated with differences in JOA scores, age, sex, or levels fused. Lordosis of the C2–7 angle and LSA increased after surgery, which were maintained for up to 1 year but subsequently disappeared after 2 years, yet the difference was not statistically significant. No cage migration was noted; two patients developed adjacent segment disease requiring posterior laminoplasty 3 years after ACDF. Conclusions: The use of a stand-alone PEEK cage in a 2-level cervical interbody fusion achieves satisfactory improvements in both clinical outcomes and fusion.

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