{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,19]],"date-time":"2026-09-19T06:35:44Z","timestamp":1789799744472,"version":"4.0.1"},"reference-count":22,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2022,8,26]],"date-time":"2022-08-26T00:00:00Z","timestamp":1661472000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/100005930","name":"ASCRS Research Foundation","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100005930","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["81572177"],"award-info":[{"award-number":["81572177"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["81902243"],"award-info":[{"award-number":["81902243"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100004731","name":"Natural Science Foundation of Zhejiang Province","doi-asserted-by":"publisher","award":["LY17H250002"],"award-info":[{"award-number":["LY17H250002"]}],"id":[{"id":"10.13039\/501100004731","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Orthopaedic Surgery"],"published-print":{"date-parts":[[2022,10]]},"abstract":"<jats:sec><jats:title>Objective<\/jats:title><jats:p>To verify the effect of single\u2010door laminoplasty combined with atlantoaxial fusion in the treatment of symptomatic atlas canal stenosis.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>This is a single\u2010center retrospective analysis. From February 2014 to January 2019, 16 patients (five were females) with an average age of 63.4\u2009years (56\u201371\u2009years) were enrolled in this study. Patients with compressive cervical myelopathy with CT scan showed an inner sagittal diameter (ISD) of C<jats:sub>1<\/jats:sub> less than 29\u2009mm or C1 canal space available for cord (SAC) of &lt;12\u2009mm were included, while isolated C1 stenosis without myelopathy or isolated C1 stenosis without atlantoaxial subluxation were excluded in this study. All patients underwent continuous heavy\u2010weight skull traction, atlas single\u2010door laminoplasty and atlantoaxial fusion. The differences in the pre\u2010 and post\u2010operative inner sagittal diameter, space available for cord, atlas\u2010dens interval (ADI) and compression of the spinal cord were analyzed by using CT and MRI. Functional evaluation was performed by using the Japanese Orthopaedic Association scoring system and the Neck Disability Index scoring system.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Single\u2010door laminoplasty provided a full decompression for the spinal cord while retaining the whole posterior arch. No complications were encountered except a superficial wound infection in one patient. At final follow\u2010up, The ADI was significantly reduced from 5.2\u2009\u00b1\u20091.8\u2009mm to 1.7\u2009\u00b1\u20090.6\u2009mm after surgery on average (<jats:italic>P<\/jats:italic>\u00a0&lt;\u20090.05). Average inner sagittal diameter of C1 was increased from 26.3\u00a0\u00b1\u20092.6\u2009mm to 34.9\u00a0\u00b1\u20092.9\u2009mm and the space available for cord was increased from 6\u00a0\u00b1\u20091.7\u2009mm to 17.8\u00a0\u00b1\u20093.6\u2009mm (<jats:italic>P<\/jats:italic>\u00a0&lt;\u20090.05). Meanwhile, the Japanese Orthopaedic Association (JOA) score of the 16 cases was improved from 11.4\u00a0\u00b1\u20091.8 to 14.1\u00a0\u00b1\u20091.4 on average (<jats:italic>P<\/jats:italic>\u00a0&lt;\u20090.05). The postoperative neck pain VAS score decreased significantly, from 2.6\u00a0\u00b1\u20091.0 preoperatively to 1.3\u00a0\u00b1\u20090.9 postoperatively (<jats:italic>P<\/jats:italic>\u00a0&lt;\u20090.05). The influence of neck pain on patient's life was improved from 17.8\u2009\u00b1\u20093.9 to 13.9\u2009\u00b1\u20093.3 after surgery (<jats:italic>P<\/jats:italic>\u00a0&lt;\u20090.05). At the last follow\u2010up, the healing of the hinge fracture and the fusion between atlas and axis were observed in all patients.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Single\u2010door laminoplasty combined with atlantoaxial fusion not only provides enough space for decompression but also offers intact arch for bone grafting, suggesting that it might provide a more feasible method for the correction of symptomatic atlas canal stenosis.<\/jats:p><\/jats:sec>","DOI":"10.1111\/os.13352","type":"journal-article","created":{"date-parts":[[2022,8,27]],"date-time":"2022-08-27T04:11:36Z","timestamp":1661573496000},"page":"2757-2765","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Effect of <scp>C<sub>1<\/sub> Single\u2010door<\/scp> Laminoplasty on Symptomatic Atlas Canal Stenosis"],"prefix":"10.1111","volume":"14","author":[{"given":"Linwei","family":"Chen","sequence":"first","affiliation":[{"name":"Department of Orthopedic Surgery, the Second Affiliated Hospital Zhejiang University School of Medicine  Hangzhou Zhejiang Province China"},{"name":"Orthopedics Research Institute of Zhejiang University  Hangzhou Zhejiang Province China"},{"name":"Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province  Hangzhou City Zhejiang Province China"},{"name":"Clinical Research Center of Motor System Disease of Zhejiang Province  Hangzhou Zhejiang Province China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiuliang","family":"Zhu","sequence":"additional","affiliation":[{"name":"Department of Radiology, Second Affiliated Hospital Zhejiang University School of Medicine  Hangzhou City Zhejiang Province China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bin","family":"He","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery, the Second Affiliated Hospital Zhejiang University School of Medicine  Hangzhou Zhejiang Province China"},{"name":"Orthopedics Research Institute of Zhejiang University  Hangzhou Zhejiang Province China"},{"name":"Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province  Hangzhou City Zhejiang Province China"},{"name":"Clinical Research Center of Motor System Disease of Zhejiang Province  Hangzhou Zhejiang Province China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qixin","family":"Chen","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery, the Second Affiliated Hospital Zhejiang University School of Medicine  Hangzhou Zhejiang Province China"},{"name":"Orthopedics Research Institute of Zhejiang University  Hangzhou Zhejiang Province China"},{"name":"Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province  Hangzhou City Zhejiang Province China"},{"name":"Clinical Research Center of Motor System Disease of Zhejiang Province  Hangzhou Zhejiang Province China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1986-4445","authenticated-orcid":false,"given":"Fangcai","family":"Li","sequence":"additional","affiliation":[{"name":"Department of Orthopedic Surgery, the Second Affiliated Hospital Zhejiang University School of Medicine  Hangzhou Zhejiang Province China"},{"name":"Orthopedics Research Institute of Zhejiang University  Hangzhou Zhejiang Province China"},{"name":"Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province  Hangzhou City Zhejiang Province China"},{"name":"Clinical Research Center of Motor System Disease of Zhejiang Province  Hangzhou Zhejiang Province 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