Histologic retrieval analysis of a porous tantalum metal implant in an infected primary total knee arthroplasty.
case_report · Level V
Where this comes from
- Record sourced from PubMed, PMID 22178612.
- Also identified by DOI 10.1016/j.arth.2011.10.025.
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Abstract
Porous tantalum (Zimmer, Inc, Warsaw, Ind) has the theoretical advantage of improved biologic fixation because of its high porosity, interconnected pore space, and modulus of elasticity. We present a case report documenting the retrieval and bone ingrowth analysis of a porous tantalum tibial component in an infected total knee arthroplasty. Results demonstrated a significantly larger amount of bone ingrowth present in the tibial posts (36.7%) when compared with the bone ingrowth into the tibial baseplate (4.9%) (P < .001). The data suggest that bone ingrowth seen in the plugs as well as baseplate was suggestive of viable bone tissue with healthy bone marrow, osteocytes, and lamella, resulting in a well-fixed tibial implant even at revision surgery for an infected total knee arthroplasty.
Medical subject headings
- Arthroplasty, Replacement, Knee
- Device Removal
- Knee Prosthesis
- Osteoarthritis, Knee
- Prosthesis-Related Infections
- Tantalum
Anatomy
- knee
- tibia