Quantification of Reaming Debris at the Fracture Gap of Diaphyseal A2 and A3 Fractures After Reamed Intramedullary Nailing of the Sheep Tibia

European Journal of Trauma and Emergency Surgery : Official Publication of the European Trauma Society
Florian Wolfgang HoegelVolker Buehren

Abstract

The aim of this study was to visualize the intramedullary bone debris after reamed nailing of long bones. To date, there is no protocol to quantify bone debris in the fracture gap. The hypothesis was to show if there are differences between A2 and A3 fractures. In this trial 17 sheep tibiae were used. On the medullary isthmus eight A2 und nine A3 fractures were produced. Afterwards, reposition, closure of the soft tissue and reaming procedure up to 10% of the bonecortex were done. For internal fixation, a plastic implant was used. The region of interest was scanned with the Micro-CT 80 and the fracture gap was contoured from a special software (SCANCO Medical AG, Switzerland). The threshold for the reaming debris was set at 549.9 mgHA/cm(3). The analysis of the bone debris located at the fracture gap was measured by percent of debris volume to gap volume. For statistical analysis the Wilcoxon test was used and a level of significance of p < 0.05 was chosen. The fracture gap width ranged from 0.3 to 1.7 mm in both groups. Comparing A2 and A3 fractures there was no significant difference concerning the percentage of reaming debris at the fracture gap. The Median of A2 fractures was 20.5 and 21% for A3 fractures. The results show ...Continue Reading

References

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Jul 25, 1998·Der Unfallchirurg·H W Stedtfeld
Mar 7, 2001·The Journal of Trauma·J P FrölkeH J Haarman
Oct 18, 2002·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Ulrich NöthRocky S Tuan
Feb 13, 2004·The Journal of Trauma·Florian HoegelNorbert P Suedkamp
Jan 25, 2005·Bone·Sabine WenischReinhard Schnettler

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