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.
Original language | English (US) |
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Pages (from-to) | 1413.e5-1413.e9 |
Journal | Journal of Arthroplasty |
Volume | 27 |
Issue number | 7 |
DOIs | |
State | Published - Aug 2012 |
Keywords
- Histologic retrieval analysis
- Infection
- Ingrowth
- Tantalum metal
- Total knee arthroplasty
ASJC Scopus subject areas
- Orthopedics and Sports Medicine