{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,15]],"date-time":"2025-12-15T19:46:37Z","timestamp":1765827997936,"version":"3.40.5"},"reference-count":33,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2021,1,4]],"date-time":"2021-01-04T00:00:00Z","timestamp":1609718400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Orthopaedic Surgery"],"published-print":{"date-parts":[[2021,2]]},"abstract":"<jats:sec><jats:title>Objective<\/jats:title><jats:p>To develop a post\u2010traumatic osteoarthritic model of hip following fracture of acetabulum in rabbit for revealing biochemical mechanism of post\u2010traumatic osteoarthritis.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>A total of 36 mature male New Zealand white rabbits were equally divided into sham group (n = 12), non\u2010ORIF group (n = 12), and open reduction and internal fixation (ORIF) group (n = 12). Except for the sham group, rabbits had survival surgeries to create acetabular fractures of dorsal wall for simulating dashboard impaction mechanism. The ORIF group received open reduction and internal fixation, while fractures in the non\u2010ORIF group were left as displaced but transverse fracture and dislocation was reduced. Besides intraoperative appearance and postoperative recovery, macroscopic and radiographic characteristics of the hips were recorded and assessed by a radiographic scoring scale at 3\u2009weeks, 6\u2009weeks, and 6\u2009months, respectively.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Out of 24 modeled acetabula, 21 (87.5%) were pure dorsal wall fractures as proposed and the remaining three were associated fractures (dorsal wall plus transverse fracture) accompanied by dorsal dislocation or not. All hips were stable, and no sciatic nerve injury was observed. One rabbit in the ORIF group died of deep infection 4\u2009days after surgery. Rabbits in the sham and ORIF groups returned to normal gait in 2\u2009weeks, but animals in the non\u2010ORIF group suffered from limping and restricted movement. As the time progressed, the hips in the non\u2010ORIF group experienced progressive and severe degeneration which exhibited dramatically malformed and hypertrophic joints at 6\u2009months, but the ORIF group maintained much better morphological structure. Corresponding to morphological changes, the average radiographic scores of the non\u2010ORIF group increased from 1.25 at 3\u2009weeks to 2.75 at 6\u2009months and showed statistically significant difference when compared to the sham group at all three time points (<jats:italic>P<\/jats:italic> =\u20090.011, 0.011, 0.015, respectively, &lt;0.0167). Although the scores of the ORIF group showed apparent improvements (increased from 0.67 at 3\u2009weeks to 2.00 at 6\u2009months), there was no significant difference between the two modeled groups at all three time points.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The fracture model with high consistency and reproducibility showed progressive post\u2010traumatic osteoarthritic changes which could be improved by open reduction and internal fixation surgery and provided an alternative selection for investigating potential pathogenesis and pathology of post\u2010traumatic osteoarthritis following fracture of acetabulum.<\/jats:p><\/jats:sec>","DOI":"10.1111\/os.12882","type":"journal-article","created":{"date-parts":[[2021,1,5]],"date-time":"2021-01-05T04:50:37Z","timestamp":1609822237000},"page":"296-305","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["A Post\u2010Traumatic Osteoarthritic Model of Hip Following Fracture of Acetabulum in Rabbit: A Preliminary Study by Macroscopic and Radiographic Assessment"],"prefix":"10.1111","volume":"13","author":[{"given":"Yanjin","family":"Li","sequence":"first","affiliation":[{"name":"College of Acupuncture and Orthopedics Hubei University of Chinese Medicine  Wuhan China"},{"name":"Department of Orthopaedic Surgery PLA Middle Military Command General Hospital  Wuhan China"},{"name":"Department of Orthopedics Wuhan Hospital of Traditional Chinese Medicine  Wuhan China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ruibing","family":"Feng","sequence":"additional","affiliation":[{"name":"College of Acupuncture and Orthopedics Hubei University of Chinese Medicine  Wuhan China"},{"name":"Department of Orthopaedic Surgery PLA Middle Military Command General Hospital  Wuhan 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