{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,26]],"date-time":"2026-08-26T08:18:30Z","timestamp":1787732310014,"version":"build-2784847793"},"reference-count":30,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,8,26]],"date-time":"2026-08-26T00:00:00Z","timestamp":1787702400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,8,26]],"date-time":"2026-08-26T00:00:00Z","timestamp":1787702400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Aust Veterinary J"],"abstract":"<jats:p>A 5\u2010year\u2010old, male, neutered, Border Collie presented to a referral hospital with marked cervical hyperaesthesia, uncharacteristic aggression and progressive tetraparesis. The dog was diagnosed with chronic, dynamic atlantoaxial instability and incomplete ossification of the atlas using combined advanced cross\u2010sectional imaging. Traditional surgical approaches rely on adequate bone stock from both the atlas and the axis to achieve robust fixation, which would have been challenging in this case. Descriptive surgical techniques are lacking for this presentation due to its rarity. The owner consented to a novel surgical technique that used a three\u2010dimensional (3D) printed titanium alloy plate to achieve dorsal occipitocervical fixation. A single screw deviated from it's intended corridor in the calvarium by 2.43\u2009mm. The dog demonstrated transient worsening of neurological deficits and regained full ambulation 4\u2009weeks post operative. 3D printing is becoming a popular adjunct in evolving surgical techniques and can be considered in both traditional and rare presentations.<\/jats:p>","DOI":"10.1111\/avj.70133","type":"journal-article","created":{"date-parts":[[2026,8,26]],"date-time":"2026-08-26T07:28:12Z","timestamp":1787729292000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Three\u2010dimensional printed dorsal occipitocervical fixation in a dog with atlantoaxial instability and concurrent incomplete ossification of the atlas"],"prefix":"10.1111","author":[{"ORCID":"https:\/\/orcid.org\/0009-0003-0120-905X","authenticated-orcid":false,"given":"M","family":"du Preez","sequence":"first","affiliation":[{"name":"SASH Adelaide  Kent Town South Australia Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"P","family":"Tisdall","sequence":"additional","affiliation":[{"name":"SASH Adelaide  Kent Town South Australia Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"JW","family":"Siow","sequence":"additional","affiliation":[{"name":"SASH Adelaide  Kent Town South Australia Australia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"B","family":"Oxley","sequence":"additional","affiliation":[{"name":"Vet3D  Cumbria UK"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,8,26]]},"reference":[{"key":"e_1_2_9_2_1","first-page":"1","article-title":"A review of canine atlantoaxial joint subluxation","volume":"28","author":"Stalin C","year":"2015","journal-title":"Vet Comp Orthop Traumatol"},{"key":"e_1_2_9_3_1","doi-asserted-by":"crossref","first-page":"620","DOI":"10.1111\/vsu.13799","article-title":"Determination of cutoff values on computed tomography and magnetic resonance images for the diagnosis of atlantoaxial instability in small\u2010breed dogs","volume":"51","author":"Planchamp B","year":"2022","journal-title":"Vet Surg"},{"key":"e_1_2_9_4_1","doi-asserted-by":"crossref","first-page":"1886","DOI":"10.3390\/ani14131886","article-title":"C1 facetectomy and ventral fixation of occipitoatlantoaxial complex for concurrent congenital atlanto\u2010occipital dislocation and atlantoaxial instability in a toy poodle","volume":"14","author":"Kim K\u2010B","year":"2024","journal-title":"Animals"},{"key":"e_1_2_9_5_1","doi-asserted-by":"crossref","first-page":"1104","DOI":"10.2460\/javma.2000.216.1104","article-title":"Risk factors affecting the outcome of surgery for atlantoaxial subluxation in dogs: 46 cases (1978\u20131998)","volume":"216","author":"Beaver DP","year":"2000","journal-title":"J Am Vet Med Assoc"},{"key":"e_1_2_9_6_1","doi-asserted-by":"crossref","first-page":"451","DOI":"10.1002\/tera.1420380508","article-title":"Morphology and embryological interpretation of a congenital occipito\u2010atlanto\u2010axial malformation in a dog","volume":"38","author":"Watson AG","year":"1988","journal-title":"Teratology"},{"key":"e_1_2_9_7_1","doi-asserted-by":"crossref","first-page":"663","DOI":"10.3171\/jns.1996.84.4.0663","article-title":"Recurrent transient quadriparesis after minor cervical trauma associated with bilateral partial agenesis of the posterior arch of the atlas. 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