{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,22]],"date-time":"2026-06-22T22:32:31Z","timestamp":1782167551070,"version":"3.54.5"},"reference-count":27,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2023,1,31]],"date-time":"2023-01-31T00:00:00Z","timestamp":1675123200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Journal Orthopaedic Research"],"published-print":{"date-parts":[[2023,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>The percutaneous sacroiliac (SI) screw is a common fixation option for posterior ring disruption in pelvic fractures. However, SI screw placement is difficult and can injure adjacent neurovascular structures. The sacral\u2010alar\u2010iliac screw (SAI) is a safe, reliable free\u2010hand sacral pelvic fixation technique. To investigate the biomechanical stability of SAI for SI joint dislocation, finite element analysis was performed in unstable Tile\u2010Type B and C pelvic ring injuries. The displacement in S1 (fixation of a unilateral S1 segment with one SI screw), TS1 (fixation of the S1 segment with a transsacra 1 screw), TS2 (fixation of the S2 segment with a transsacra 2 screw), S1AI, and S2AI exceeded the normal SI joint mobility. Sufficient stability after SI joint dislocation was obtained with (TS1\u2009+\u2009TS2), (TS2\u2009+\u2009S1), (S1AI\u2009+\u2009S2AI\u2009+\u2009rod), (S1AI\u2009+\u2009S2AI), and (S1\u2009+\u2009S2AI\u2009+\u2009S1 pedicle) fixation. The TS1\u2009+\u2009TS2 group had the smallest displacement and lowest peak screw stress, followed by (S1\u2009+\u2009S2AI\u2009+\u2009S1 pedicle) placement. Our findings suggest that SAI screws are a valuable option for SI joint dislocation.<\/jats:p>","DOI":"10.1002\/jor.25525","type":"journal-article","created":{"date-parts":[[2023,1,24]],"date-time":"2023-01-24T09:39:49Z","timestamp":1674553189000},"page":"1821-1830","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Finite element analysis of sacral\u2010alar\u2010iliac screw fixation for sacroiliac joint dislocation"],"prefix":"10.1002","volume":"41","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4858-0684","authenticated-orcid":false,"given":"Wei","family":"Zhang","sequence":"first","affiliation":[{"name":"Department of Orthopedics, Second Affiliated Hospital, School of Medicine Zhejiang University  Hangzhou China"},{"name":"Research Institute of Orthopedics Zhejiang University  Hangzhou China"},{"name":"Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province  Hangzhou City 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