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BioMed Research International
Volume 2015 (2015), Article ID 513939, 7 pages
Research Article

Radiologic Evaluation of Compressive Osseointegration for the Fixation of Reconstruction Prostheses after Tumor Resection

Department of Orthopaedics, University Hospital Ghent, De Pintelaan 185, 9000 Ghent, Belgium

Received 23 January 2015; Revised 21 June 2015; Accepted 6 July 2015

Academic Editor: Ayhan Cömert

Copyright © 2015 Manol Lazarov et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Objective. In pursuance of thoroughly understanding and facilitating the evaluation of the radiological changes in the preloaded bone by Compliant Pre-Stress osseointegration (Compress Biomet, Warsaw, Indiana) a new staging method was created depicting four stages. Methods. Two cohorts (10 and 17 patients resp., not-receiving and receiving chemotherapy) were compared in terms of progression of osseointegration. Based on the changes at the bone-metal interface seen on röntgenorgrams four stages were defined: stage 0: immediate postoperative status, no ingrowth, or noncalcified callus; stage 1: early mineralization, calcified callus; stage 2: mature mineralization; and stage 3: hypertrophy at the level of the pins. Results. There were no significant differences between the two cohorts. Group 2, which was significantly younger than group 1 (), presented a delayed initial rate of bone formation and reached stage 1 at 6 months instead of 3 months like group 1. The children from the group 2 demonstrated a visible rebound ingrowth. Conclusion. Despite the fact that the staging fails to demonstrate a statistical difference, it is rather simple and can be used for future studies.