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Conference Paper: Lumbar Facet Joint Orientation in Degenerative Spondylolisthesis: the Role of Ethnic Variation in Asia Pacific

TitleLumbar Facet Joint Orientation in Degenerative Spondylolisthesis: the Role of Ethnic Variation in Asia Pacific
Authors
Issue Date2014
PublisherThe International Society for the Study of the Lumbar Spine (ISSLS).
Citation
The 41st Annual Meeting of the International Society for the Study of the Lumbar Spine (ISSLS), Seoul, Korea, 3-7 June 2014. In the Abstract Book of the 41st Annual Meeting of the International Society for the Study of the Lumbar Spine (ISSLS), 2014, p. 185-187, abstract no. GP125 How to Cite?
AbstractINTRODUCTION: Lumbar facet joint orien‐ tation has been reported to be associated with the development of degenerative spondylolisthesis (dSpl). The role of ethnici‐ ty regarding facet joint orientation remains uncertain. As such, the following study was performed across a wide‐ranging popula‐ tion base to assess the role of ethnicity in facet joint orientation in patients with dSpl in the Asia Pacific region. METHODS: A multi‐national, multi‐ethnic cross‐sectional image‐based study was per‐ formed in 34 institutions in Asia Pacific, identifying 448 cases. Lateral standing x‐ rays and axial MRIs and/or CT scans were obtained for patients with lumbar dSpl. Magnitude of slip displacement, level of dSpl, and left/right facet joint angulation, width‐curvature ratio, and gap width were noted on image assessment. Facet joint measurements were performed at each level from L3‐S1. Gender, age, BMI, and ethnicity were also noted.    RESULTS: The study included 389 patients with known ethnic origin (mean age: 61.4 years; 36.7% males, 63.3% females). The mean BMI was 25.6 kg/m2. The level of dSpl was most prevalent at L4/L5 (72.4%). There were 28.8% Indian, 28.5% Japanese, 17.5% Chinese, 8.2% Korean, 6.2% Thai, 4.6% Cau‐ casian, 2.3% Filipino, 2.3% Malay, and 1.3 were of mixed Asian origin. Accounting for patient demographics and displacement, there was a statistically significant differ‐ ence between ethnicity to that of left/right facet joint angulations, width‐curvature ratios, and gap widths from L3‐S1 between specific ethnic groups (p<0.05).    DISCUSSION: This is the largest study to address the role of ethnicity upon lumbar facet joint orientation in dSpl. Ethnicity plays a role in facet joint orientation and may influence the occurrence and severity of dSpl or be a potential consequence. An understanding of ethnic variability may be one factor which assists in identifying those patients at risk of postsurgical development or progression of dSpl.
DescriptionGeneral Poster
Persistent Identifierhttp://hdl.handle.net/10722/204381

 

DC FieldValueLanguage
dc.contributor.authorWilliams, Ren_US
dc.contributor.authorRajasekaran, Sen_US
dc.contributor.authorKawaguchi, Yen_US
dc.contributor.authorAcharya, Sen_US
dc.contributor.authorKawakami, Men_US
dc.contributor.authorSatoh, Sen_US
dc.contributor.authorChen, WJen_US
dc.contributor.authorPark, CKen_US
dc.contributor.authorLee, CSen_US
dc.contributor.authorFoocharoen, Ten_US
dc.contributor.authorNagashima, Hen_US
dc.contributor.authorKuh, Sen_US
dc.contributor.authorZheng, ZMen_US
dc.contributor.authorCondor, Ren_US
dc.contributor.authorIto, Men_US
dc.contributor.authorIwasaki, Ien_US
dc.contributor.authorJeong, JHen_US
dc.contributor.authorLuk, KDKen_US
dc.contributor.authorPrijambodo, Ben_US
dc.contributor.authorRege, Aen_US
dc.contributor.authorJahng, TAen_US
dc.contributor.authorLuo, ZJen_US
dc.contributor.authorTassanawipas, WAen_US
dc.contributor.authorAcharya, Nen_US
dc.contributor.authorPokharel, Ren_US
dc.contributor.authorShen, Yen_US
dc.contributor.authorIto, Ten_US
dc.contributor.authorZhang, ZHen_US
dc.contributor.authorAithala, Jen_US
dc.contributor.authorKumar, GVen_US
dc.contributor.authorJabir, RAen_US
dc.contributor.authorBasu, Sen_US
dc.contributor.authorLi, BJen_US
dc.contributor.authorMoudgil, Ven_US
dc.contributor.authorSham, PLMen_US
dc.contributor.authorSamartzis, Den_US
dc.date.accessioned2014-09-19T22:41:21Z-
dc.date.available2014-09-19T22:41:21Z-
dc.date.issued2014en_US
dc.identifier.citationThe 41st Annual Meeting of the International Society for the Study of the Lumbar Spine (ISSLS), Seoul, Korea, 3-7 June 2014. In the Abstract Book of the 41st Annual Meeting of the International Society for the Study of the Lumbar Spine (ISSLS), 2014, p. 185-187, abstract no. GP125en_US
dc.identifier.urihttp://hdl.handle.net/10722/204381-
dc.descriptionGeneral Poster-
dc.description.abstractINTRODUCTION: Lumbar facet joint orien‐ tation has been reported to be associated with the development of degenerative spondylolisthesis (dSpl). The role of ethnici‐ ty regarding facet joint orientation remains uncertain. As such, the following study was performed across a wide‐ranging popula‐ tion base to assess the role of ethnicity in facet joint orientation in patients with dSpl in the Asia Pacific region. METHODS: A multi‐national, multi‐ethnic cross‐sectional image‐based study was per‐ formed in 34 institutions in Asia Pacific, identifying 448 cases. Lateral standing x‐ rays and axial MRIs and/or CT scans were obtained for patients with lumbar dSpl. Magnitude of slip displacement, level of dSpl, and left/right facet joint angulation, width‐curvature ratio, and gap width were noted on image assessment. Facet joint measurements were performed at each level from L3‐S1. Gender, age, BMI, and ethnicity were also noted.    RESULTS: The study included 389 patients with known ethnic origin (mean age: 61.4 years; 36.7% males, 63.3% females). The mean BMI was 25.6 kg/m2. The level of dSpl was most prevalent at L4/L5 (72.4%). There were 28.8% Indian, 28.5% Japanese, 17.5% Chinese, 8.2% Korean, 6.2% Thai, 4.6% Cau‐ casian, 2.3% Filipino, 2.3% Malay, and 1.3 were of mixed Asian origin. Accounting for patient demographics and displacement, there was a statistically significant differ‐ ence between ethnicity to that of left/right facet joint angulations, width‐curvature ratios, and gap widths from L3‐S1 between specific ethnic groups (p<0.05).    DISCUSSION: This is the largest study to address the role of ethnicity upon lumbar facet joint orientation in dSpl. Ethnicity plays a role in facet joint orientation and may influence the occurrence and severity of dSpl or be a potential consequence. An understanding of ethnic variability may be one factor which assists in identifying those patients at risk of postsurgical development or progression of dSpl.-
dc.languageengen_US
dc.publisherThe International Society for the Study of the Lumbar Spine (ISSLS).-
dc.relation.ispartofAnnual Meeting of the International Society for the Study of the Lumbar Spine (ISSLS)en_US
dc.titleLumbar Facet Joint Orientation in Degenerative Spondylolisthesis: the Role of Ethnic Variation in Asia Pacificen_US
dc.typeConference_Paperen_US
dc.identifier.emailLuk, KDK: hrmoldk@hkucc.hku.hken_US
dc.identifier.emailSham, PLM: phoesham@hku.hken_US
dc.identifier.emailSamartzis, D: dspine@hku.hken_US
dc.identifier.authorityLuk, KDK=rp00333en_US
dc.identifier.authoritySamartzis, D=rp01430en_US
dc.identifier.hkuros237088en_US
dc.identifier.hkuros238048-
dc.identifier.spage185, abstract no. GP125-
dc.identifier.epage187, abstract no. GP125-
dc.publisher.placeSeoul, Korea-

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