Journal article
Development of a Force-Driven Distractor for Distraction Osteogenesis
Journal of medical devices, v 5(4)
01 Dec 2011
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Distraction osteogenesis is a routine surgical procedure to lengthen a long bone. A fixed lengthening rate is typically used. We investigate measuring forces continuously and producing a variable distraction rate. A motorized distractor was instrumented with a load cell to measure the forces developed in a limb during distraction osteogenesis. The motor moves 2.6 mu m at each step, with a variable frequency depending on the distraction rate. The forces were measured every 15 s and used to change the rate on the autodistractor. The autodistractor, load cell, data logger, controller, and battery pack were all mounted on a monolateral rail fixator, which was tested on a sheep that underwent tibial lengthening. Results show the feasibility of continually recording forces in vivo. The lengthening rate changed automatically, based around a threshold force of 300 N. Findings indicate that force readings are feasible and practical with a simple device. Force determination may provide an additional means to evaluate tissue integrity in real-time and away from the clinic. An automatic variable rate device could improve limb lengthening. [DOI: 10.1115/1.4005321]
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Details
- Title
- Development of a Force-Driven Distractor for Distraction Osteogenesis
- Creators
- Jinyong Wee - Drexel UniversityRobert E. Akins - Alfred I. duPont Hospital for ChildrenWilliam G. Mackenzie - Alfred I. duPont Hospital for ChildrenRahamim Seliktar - Drexel UniversityDavid G. Levine - Widener Hospital, The University of Pennsylvania School of Veterinary Medicine, 382 West Street Road, Kennett Square, PA 19348Dean W. Richardson - Widener Hospital, The University of Pennsylvania School of Veterinary Medicine, 382 West Street Road, Kennett Square, PA 19348George R. Dodge - University of PennsylvaniaTariq Rahman - Alfred I. duPont Hospital for Children
- Publication Details
- Journal of medical devices, v 5(4)
- Publisher
- ASME-AMER SOC MECHANICAL ENG
- Number of pages
- 5
- Grant note
- Nemours Biomedical Research
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- School of Biomedical Engineering, Science, and Health Systems; [Retired Faculty]
- Web of Science ID
- WOS:000297474400004
- Scopus ID
- 2-s2.0-81155138355
- Other Identifier
- 991019167968804721
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Engineering, Biomedical