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Updated: Apr 25, 2026

Use of Human Perivascular Stem Cells for Bone Regeneration
Published on: May 25, 2012
Muscle pouch implantation: an ectopic bone formation model
Greg Asatrian1, Le Chang, Aaron W James
1Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA, USA.
Abstract:
Ectopic bone formation refers to the ossification of tissue outside of its typical microenvironment. Numerous animal models exist to experimentally induce ectopic bone formation in order to examine the process of osteogenesis or to evaluate the "osteogenic potential" of a given implant. The most widely employed methods in the rodent include subcutaneous, intramuscular, and renal capsule implantation. This chapter will outline the (1) clinical correlates to ectopic ossification, (2) a brief history of experimental models of ectopic ossification, (3) advantages and disadvantages of various models (with a focus on rodent models), and (4) detailed methods and explanation of a mouse intramuscular implantation procedure.
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