{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T16:58:31Z","timestamp":1790787511515,"version":"4.1.0"},"reference-count":22,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2020,8,15]],"date-time":"2020-08-15T00:00:00Z","timestamp":1597449600000},"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":["Robotics Computer Surgery"],"published-print":{"date-parts":[[2020,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>Distal nasolacrimal duct stenosis is usually treated by head and neck surgeons with transnasal endoscopic dacryocystorhinostomy (DCR). The presented clinical study discusses advantages and drawbacks of a robot\u2010assisted endoscope positioning system, which allows for hands\u2010free visualization of the surgical field.<\/jats:p><\/jats:sec><jats:sec><jats:title>Material and Methods<\/jats:title><jats:p>Two patients were treated by surgical DCR. The endoscopic positioning system (Medineering<jats:sup>\u00ae<\/jats:sup>) features a mechatronic holding arm with four segments and seven degrees of freedom. It is driven by using a foot pedal.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Visualization and instrumentation of the surgical field including the relevant anatomical landmarks were feasible. The endoscope position could be controlled with sufficient precision. The surgeon was able to maintain bimanual instrumentation.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>The endoscope positioning system allows for two\u2010handed surgery, which facilitates the essential steps of the surgical procedure. If the benefit of the system is sufficient for the use in clinical routine, it has to be evaluated in repeated applications.<\/jats:p><\/jats:sec>","DOI":"10.1002\/rcs.2144","type":"journal-article","created":{"date-parts":[[2020,7,31]],"date-time":"2020-07-31T10:18:14Z","timestamp":1596190694000},"page":"1-5","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Nasolacrimal duct stenosis\u2014Surgery with a novel robotic endoscope positioning system"],"prefix":"10.1002","volume":"16","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7291-7737","authenticated-orcid":false,"given":"Felix","family":"Boehm","sequence":"first","affiliation":[{"name":"Department of Otorhinolaryngology, Head and Neck Surgery Ulm University Medical Center  Ulm Germany"},{"name":"Surgical Oncology Ulm, i2SOUL Consortium  Ulm Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daniel T.","family":"Friedrich","sequence":"additional","affiliation":[{"name":"Department of Otorhinolaryngology, Head and Neck Surgery Augsburg University Medical Center  Augsburg Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Fabian","family":"Sommer","sequence":"additional","affiliation":[{"name":"Department of Otorhinolaryngology, Head and Neck Surgery Ulm University Medical Center  Ulm Germany"},{"name":"Surgical Oncology Ulm, i2SOUL Consortium  Ulm Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marc\u2010Oliver","family":"Scheithauer","sequence":"additional","affiliation":[{"name":"Department of Otorhinolaryngology, Head and Neck Surgery Ulm University Medical Center  Ulm Germany"},{"name":"Surgical Oncology Ulm, i2SOUL Consortium  Ulm Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jens","family":"Greve","sequence":"additional","affiliation":[{"name":"Department of Otorhinolaryngology, Head and Neck Surgery Ulm University Medical Center  Ulm Germany"},{"name":"Surgical Oncology Ulm, i2SOUL Consortium  Ulm Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thomas K.","family":"Hoffmann","sequence":"additional","affiliation":[{"name":"Department of Otorhinolaryngology, Head and Neck Surgery Ulm University Medical Center  Ulm Germany"},{"name":"Surgical Oncology Ulm, i2SOUL Consortium  Ulm Germany"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Patrick J.","family":"Schuler","sequence":"additional","affiliation":[{"name":"Department of Otorhinolaryngology, Head and Neck Surgery Ulm University Medical Center  Ulm Germany"},{"name":"Surgical Oncology Ulm, i2SOUL Consortium  Ulm 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