{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,22]],"date-time":"2026-01-22T00:32:33Z","timestamp":1769041953926,"version":"3.49.0"},"reference-count":31,"publisher":"Wiley","license":[{"start":{"date-parts":[[2017,1,1]],"date-time":"2017-01-01T00:00:00Z","timestamp":1483228800000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Pain Research and Management"],"published-print":{"date-parts":[[2017]]},"abstract":"<jats:p><jats:italic>Background<\/jats:italic>. We devised a new morphological parameter called the superior articular process area (SAPA) to evaluate the connection between lumbar foraminal stenosis (LFS) and the superior articular process.<jats:italic> Objective<\/jats:italic>. We hypothesized that the SAPA is an important morphologic parameter in the diagnosis of LFS.<jats:italic> Methods<\/jats:italic>. All patients over 60 years of age were included. Data regarding the SAPA were collected from 137 patients with LFS. A total of 167 control subjects underwent lumbar magnetic resonance imaging (MRI) as part of a routine medical examination. We analyzed the cross-sectional area of the bone margin of the superior articular process at the level of L4-L5 facet joint in the axial plane.<jats:italic> Results<\/jats:italic>. The average SAPA was <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M1\"><mml:mn fontstyle=\"italic\">96.3<\/mml:mn><mml:mo>\u00b1<\/mml:mo><mml:mn fontstyle=\"italic\">13.6<\/mml:mn><\/mml:math>\u2009mm<jats:sup>2<\/jats:sup> in the control group and <mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M2\"><mml:mn fontstyle=\"italic\">128.1<\/mml:mn><mml:mo>\u00b1<\/mml:mo><mml:mn fontstyle=\"italic\">17.2<\/mml:mn><\/mml:math>\u2009mm<jats:sup>2<\/jats:sup> in the LFS group. The LFS group was found to have significantly higher levels of SAPA (<mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\" id=\"M3\"><mml:mi>p<\/mml:mi><mml:mo>&lt;<\/mml:mo><mml:mn fontstyle=\"italic\">0.001<\/mml:mn><\/mml:math>) in comparison to the control group. In the LFS group, the optimal cut-off value was 112.1\u2009mm<jats:sup>2<\/jats:sup>, with 84.4% sensitivity, 83.9% specificity, and AUC of 0.94 (95% CI: 0.91\u20130.96).<jats:italic> Conclusions<\/jats:italic>. Higher SAPA values were associated with a higher possibility of LFS. These results are important in the evaluation of patients with LFS.<\/jats:p>","DOI":"10.1155\/2017\/7914836","type":"journal-article","created":{"date-parts":[[2017,1,9]],"date-time":"2017-01-09T16:02:50Z","timestamp":1483977770000},"page":"1-5","source":"Crossref","is-referenced-by-count":5,"title":["Optimal Cut-Off Value of the Superior Articular Process Area as a Morphological Parameter to Predict Lumbar Foraminal Stenosis"],"prefix":"10.1155","volume":"2017","author":[{"given":"Tae-Ha","family":"Lim","sequence":"first","affiliation":[{"name":"Department of Anesthesiology and Pain Medicine, Eulji General Hospital, Eulji University College of Medicine, Seoul, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Soo Il","family":"Choi","sequence":"additional","affiliation":[{"name":"Department of Anesthesiology and Pain Medicine, Catholic Kwandong University of Korea College of Medicine, International St. Mary\u2019s Hospital, Incheon, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hyung Rae","family":"Cho","sequence":"additional","affiliation":[{"name":"Department of Anesthesiology and Pain Medicine, Myongji Hospital, College of Medicine, Seonam University, Goyang, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Keum Nae","family":"Kang","sequence":"additional","affiliation":[{"name":"Department of Anesthesiology and Pain Medicine, National Police Hospital, Seoul, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chang Joon","family":"Rhyu","sequence":"additional","affiliation":[{"name":"Department of Anesthesiology and Pain Medicine, National Police Hospital, Seoul, Republic of Korea"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Eun Young","family":"Chae","sequence":"additional","affiliation":[{"name":"Department of Radiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of 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