Document Detail

Quantifying the sharpness of osteotomes for dorsal hump reduction.
MedLine Citation:
PMID:  21422444     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: To assess the relative sharpness of osteotomes after multiple uses, routine maintenance, and sharpening.
METHODS: This prospective clinical study and mechanical model quantified the relative sharpness of identical osteotomes at baseline; after 3, 6, and 9 uses; and after sharpening techniques compared with osteotomes from hospital central supply. The Instron universal tester developed a force-displacement curve as the osteotome blade cut a standardized suture. Force required to cut the suture is inversely proportional to osteotome sharpness.
RESULTS: For osteotomes 1, 2, and 3, dullness occurred after 9 uses (4.836 lb; P < .001), 6 uses (4.431 lb; P < .005), and 3 uses (4.093 lb; P < .02), respectively. Osteotome 1 was professionally sharpened after 9 uses and retested (3.156 lb); results were similar to those for an osteotome used 6 times (3.160 lb). Additional sharpening showed significantly poorer performance (7.737 lb; P < .001 at baseline and after 9 uses). Osteotome 3 was hand sharpened after 6 uses and retested (7.750 lb; baseline P < .001). Two osteotomes from central supply required almost twice the cutting force relative to the senior author's osteotomes.
CONCLUSIONS: Although osteotome performance decreased significantly over time, professional sharpening only achieved results similar to an osteotome used 3 to 6 times. Further resharpening seems detrimental to performance. Surgeons may want to consider osteotomes disposable instruments.
Jason D Bloom; Evan R Ransom; Marcelo B Antunes; Daniel G Becker
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Publication Detail:
Type:  Evaluation Studies; Journal Article    
Journal Detail:
Title:  Archives of facial plastic surgery     Volume:  13     ISSN:  1538-3660     ISO Abbreviation:  Arch Facial Plast Surg     Publication Date:    2011 Mar-Apr
Date Detail:
Created Date:  2011-03-22     Completed Date:  2011-07-26     Revised Date:  2012-09-24    
Medline Journal Info:
Nlm Unique ID:  100883500     Medline TA:  Arch Facial Plast Surg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  103-8     Citation Subset:  IM    
Department of Otorhinolaryngology–Head and Neck Surgery, University of Pennsylvania, Philadelphia, PA, USA.
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MeSH Terms
Osteotomy / instrumentation*
Prospective Studies
Rhinoplasty / instrumentation*,  methods

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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