Authors’ Contributions
M. Balke: idea of the study, preparation of the paper, and
data collection. M. P. Henrichs: followup of patients and
collection of literature. G. Gosheger: surgical methods and
evaluation of surgical protocols. H. Ahrens: preparation of
figures and critical discussion of results. A. Streitbuerger:
data collection, followup of patients. M. Koehler: evaluation
of radiological data, arterial embolization. V. Bullmann:
surgical methods and evaluation of outcome. J. Hardes:
supervisor, critical discussion and guidance during writing
process, and evaluation of data