{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,7]],"date-time":"2026-07-07T19:36:19Z","timestamp":1783452979880,"version":"3.55.0"},"reference-count":39,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2010,9,29]],"date-time":"2010-09-29T00:00:00Z","timestamp":1285718400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"name":"National Center of Competence in Research Computer Aided and Image Guided Medical Interventions of the Swiss National Science Foundation, Berne"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Lasers Surg Med"],"published-print":{"date-parts":[[2010,10]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objectives<\/jats:title><jats:p>It was the aim of this study to compare the feasibility of complete osteotomy of long bones in sheep using a newly designed variable square pulsed Er:YAG laser and piezoelectric surgery. In addition to uneventful bone healing after laser osteotomy, the goal was to assess the possibility to cut thick bony structures with both techniques in a surgically acceptable time frame of 2\u20133\u2009minutes.<\/jats:p><\/jats:sec><jats:sec><jats:title>Material and Methods<\/jats:title><jats:p>A tibia midshaft osteotomy was performed in 24 sheep using either an Er:YAG laser (<jats:italic>n<\/jats:italic>\u2009=\u200912) or piezoelectric device (<jats:italic>n<\/jats:italic>\u2009=\u200912). Laser and piezoelectric groups were divided in two subgroups (<jats:italic>n<\/jats:italic>\u2009=\u20096) with sheep sacrificed after 2 and 3 months, respectively. A complete radiological, histological and histomorphometric analysis was performed to compare the course of bone\/fracture healing and remodelling.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Laser and piezoelectric osteotomies of the sheep tibia up to a depth of 22\u2009mm were possible without any thermal damage. Radiological and histological results after 2 months showed primary gap healing with distinct periosteal callus formation on the transcortex. After 3 months, radiological and histological analysis revealed less callus formation on the transcortex, with almost no visible osteotomy gap and a distinct formation of lamellar bone crossing the original osteotomy gap.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Er:YAG laser osteotomy can successfully be used in long bones with a depth of up to 22\u2009mm, thus challenging the dogma of adverse effects of laser osteotomy due to thermal or other damages. Lasers Surg. Med. 42:743\u2013751, 2010 \u00a9 2010 Wiley\u2010Liss, Inc.<\/jats:p><\/jats:sec>","DOI":"10.1002\/lsm.20946","type":"journal-article","created":{"date-parts":[[2010,9,29]],"date-time":"2010-09-29T13:07:07Z","timestamp":1285765627000},"page":"743-751","source":"Crossref","is-referenced-by-count":41,"title":["Comparison of Er:YAG laser and piezoelectric osteotomy: An animal study in 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