An International Multicenter Study Assessing the Role of Ethnicity on Variation of Lumbar Facet Joint Orientation and the Occurrence of Degenerative Spondylolisthesis in Asia Pacific: A Study from the AOSpine Asia Pacific Research Collaboration Consortium

Global Spine Journal
Richard WilliamsDino Samartzis

Abstract

Study Design A multinational, multiethnic, cross-sectional image-based study was performed in 33 institutions, representing 10 countries, which were part of the AOSpine Asia Pacific Research Collaboration Consortium. Objective Lumbar facet joint orientation has been reported to be associated with the development of degenerative spondylolisthesis (DS). The role of ethnicity regarding facet joint orientation remains uncertain. As such, the following study was performed across a wide-ranging population base to assess the role of ethnicity in facet joint orientation in patients with DS in the Asia Pacific region. Methods Lateral standing X-rays and axial magnetic resonance imaging scans were obtained for patients with lumbar DS. The DS parameters and facet joint angulations were assessed from L3-S1. Sex, age, body mass index (BMI), and ethnicity were also noted. Results The study included 371 patients with known ethnic origin (mean age: 62.0 years; 64% males, 36% females). The mean BMI was 25.6 kg/m(2). The level of DS was most prevalent at L4-L5 (74.7%). There were 28.8% Indian, 28.6% Japanese, 18.1% Chinese, 8.6% Korean, 6.5% Thai, 4.9% Caucasian, 2.7% Filipino, and 1.9% Malay patients. Variations in facet joint angulations were ...Continue Reading

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Citations

Nov 11, 2017·Journal of Orthopaedic Surgery·S P MohantyAsha Kamath
Dec 6, 2018·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Uruj ZehraDino Samartzis
Jun 13, 2020·Journal of Orthopaedic Surgery·Jason Pui Yin CheungUNKNOWN APSS Scoliosis Focus Group
Nov 25, 2019·BMC Musculoskeletal Disorders·Kevin Chi Him Fok, Jason Pui Yin Cheung

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AOSpine
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