Document Detail

Assessing the accuracy of a prototype drill guide for fibular graft placement in femoral head necrosis.
MedLine Citation:
PMID:  9234975     Owner:  NLM     Status:  MEDLINE    
A prototype drill guide was developed to improve the accuracy of surgical placement of fibular grafts for the treatment of femoral head necrosis. To document performance, two tantalum beads, one placed on the lateral femoral shaft and the other embedded in the superior portion of the head, were used to define the desired graft tract in a series of seven surrogate femurs. Two orthogonal x-rays of the drill guide mounted on each surrogate femur were taken both before and after drilling. After stylus digitization of each x-ray pair, a computer program calculated the achieved accuracy of the drill. The mean of the absolute error between the desired versus obtained position of the drill tip was 3.68 mm (s.d. 1.24 mm), and the random component of the error was 1.98 mm (s.d. 0.89 mm).
M J Schnieders; S B Dave; D E Morrow; A D Heiner; D R Pedersen; T D Brown
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  The Iowa orthopaedic journal     Volume:  17     ISSN:  1541-5457     ISO Abbreviation:  Iowa Orthop J     Publication Date:  1997  
Date Detail:
Created Date:  1997-09-12     Completed Date:  1997-09-12     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  8908272     Medline TA:  Iowa Orthop J     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  58-63     Citation Subset:  IM    
Department of Orthopaedic Surgery, The University of Iowa, Iowa City 52242, USA.
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MeSH Terms
Anthropometry / instrumentation*
Bias (Epidemiology)
Bone Transplantation / instrumentation*
Equipment Design
Femur Head Necrosis / radiography,  surgery*
Fibula / transplantation*
Radiographic Image Enhancement
Reproducibility of Results
Surgical Instruments / standards*
Grant Support

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

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