| Comparison of hydroxyapatite-coated and uncoated pins for transfixation casting in horses. | |
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MedLine Citation:
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PMID: 22533407 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Objective-To determine the extent to which a hydroxyapatite coating promotes pin stability in the third metacarpal bone during transfixation casting in horses. Animals-14 adult horses. Procedures-7 horses each were assigned to either an uncoated or hydroxyapatite-coated pin group. Three transcortical pins were placed in the third metacarpal bone of each horse and incorporated into a cast for 8 weeks. Insertion and extraction torque were measured, and torque reduction was calculated. Radiography was performed at 0, 4, and 8 weeks. Lameness evaluation was performed at 2, 4, 6, and 8 weeks. Bacteriologic culture of pins and pin holes was performed at pin removal. Results-All horses used casts without major complication throughout the study. Insertion torque was higher in uncoated pins. There was no effect of group on extraction torque. Hydroxyapatite-coated pins had lower torque reduction. Five of 15 hydroxyapatite-coated pins maintained or increased stability, whereas all uncoated pins loosened. Pin hole radiolucency, lameness grades, and positive bacteriologic culture rates were not different between groups. Conclusions and Clinical Relevance-Hydroxyapatite coating increased pin stability within the third metacarpal bone of horses during 8 weeks of transfixation casting but did not improve pin performance on clinical assessments. Clinical use of hydroxyapatite-coated transfixation pins may result in greater pin stability; however, further research is necessary to improve the consistency of pin osteointegration and elucidate whether clinical benefits will ultimately result from this approach in horses. |
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Authors:
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Timothy B Lescun; Debra K Baird; Laurinda J Oliver; Stephen B Adams; Jan F Hawkins; George E Moore |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: American journal of veterinary research Volume: 73 ISSN: 1943-5681 ISO Abbreviation: Am. J. Vet. Res. Publication Date: 2012 May |
Date Detail:
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Created Date: 2012-04-26 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0375011 Medline TA: Am J Vet Res Country: United States |
Other Details:
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Languages: eng Pagination: 724-34 Citation Subset: IM |
Affiliation:
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Department of Veterinary Clinical Sciences, College of Veterinary Medicine, Purdue University, West Lafayette, IN 47907. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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