{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,14]],"date-time":"2025-05-14T01:49:33Z","timestamp":1747187373492,"version":"3.40.5"},"reference-count":27,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2020,12,6]],"date-time":"2020-12-06T00:00:00Z","timestamp":1607212800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100003399","name":"Science and Technology Commission of Shanghai Municipality","doi-asserted-by":"publisher","award":["17441900400","18441905800"],"award-info":[{"award-number":["17441900400","18441905800"]}],"id":[{"id":"10.13039\/501100003399","id-type":"DOI","asserted-by":"publisher"}]}],"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 propose a novel technique of free\u2010hand pedicle screw placement in cervicothoracic spine (snake\u2010eye method) and evaluate the preliminary effects and safety in clinical practice.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>This is a retrospective study and we defined the period of this study as from December 2017 to April 2019 in our institution. Forty patients were included in this study who underwent cervicothoracic internal fixation in our hospital, and all patients undergoing implantation of 200 pedicle screws were divided into two groups. Twenty\u2010two patients (108 screws) had screw placement using traditional method, while 18 patients (92 screws) had screw placement using snake\u2010eye method. To reduce the possible selection bias, the patients we recruited in this study was originally performed on by one radiological doctor who was blind to the objective of this study. Patient demographics, including patient age, sex, obesity, smoking, and hypertension, were evaluated to figure out baseline differences between groups. Medical information was recorded including time, accuracy, and immediate (within 30\u2009days after surgery) postoperative complications of pedicle screw placement (including pulmonary embolism or other thromboembolic events, surgical site infection, neurovascular injury, and mortality).<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>There were 24 males and 16 females, with an average age of 52.2\u2009years (range, 24\u201377). Finally, a total of 200 screws were successfully inserted in these patients, including fifteen patients with four pedicle screws, four patients with six screws, three patients with eight screws in traditional method group, and 12 patients with four pedicle screws, two patients with six screws, four patients with eight screws in snake\u2010eye method group. Patient demographic and comparison of two surgery methods are shown in Tables 1 and 2. The data baselines of the two groups were comparable because no impact of the two groups on population characteristics was demonstrated in the presented experiment. Also, we noticed that time and accuracy of the two groups were different with statistical significance at the level of <jats:italic>P<\/jats:italic> = 0.05. We observed that immediate (within 30\u2009days after surgery) postoperative complications, including pulmonary embolism (PE), surgical site infection (SSI), neurovascular injury (NI), and mortality, in the two groups did not differ.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>This study highlights a safe and effective technique for pedicle screw placement in cervicothoracic spine named snake\u2010eye method, and this technique may be particularly useful in emergency conditions with limited resources.<\/jats:p><\/jats:sec>","DOI":"10.1111\/os.12809","type":"journal-article","created":{"date-parts":[[2020,12,7]],"date-time":"2020-12-07T06:32:54Z","timestamp":1607322774000},"page":"35-44","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Snake\u2010Eye Screwing: A Novel Free\u2010Hand Technique of Pedicle Screw Placement in Cervicothoracic Spine and Preliminary Clinical Results"],"prefix":"10.1111","volume":"13","author":[{"given":"Jian","family":"Zhu","sequence":"first","affiliation":[{"name":"Department of Orthopaedic Surgery, Spine Center, Changzheng Hospital Second Military Medical University  Shanghai China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kai\u2010qiang","family":"Sun","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Spine Center, Changzheng Hospital Second Military Medical University  Shanghai China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Lan\u2010tao","family":"Lu","sequence":"additional","affiliation":[{"name":"Ninth Team, Basic Medical College Naval Medical University  Shanghai China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jing\u2010chuan","family":"Sun","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Spine Center, Changzheng Hospital Second Military Medical University  Shanghai 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Second Military Medical University  Shanghai China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2133-0108","authenticated-orcid":false,"given":"Jian\u2010gang","family":"Shi","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery, Spine Center, Changzheng Hospital Second Military Medical University  Shanghai 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