title: Tantalum cones and bone defects in revision total knee arthroplasty.
abstract: Management of bone loss is a major challenge in revision total knee arthroplasty (TKA). The development of preformed porous tantalum cones offers new possibilities, because they seem to have biological and mechanical qualities that facilitate osseointegration. Compared to the original procedure, when metaphyseal bone defects are too severe, a single tantalum cone may not be enough and we have developed a technique that could extend the indications for this cone in these cases. We used 2 cones to fill femoral bone defects in 7 patients. There were no complications due to wear of the tantalum cones. Radiological follow-up did show any migration or loosening. The short-term results confirm the interest of porous tantalum cones and suggest that they can be an alternative to allografts or megaprostheses in case of massive bone defects.
authors.affiliation: Service d'orthopédie D, hôpital Salengro, CHRU de Lille, place de Verdun, 59037 Lille cedex, France; Université Lille Nord de France, 59000 Lille cedex, France. Electronic address: boureau.florian@gmail.com.
authors.forename: F
authors.initials: F
authors.lastname: Boureau
authors.affiliation: Service d'orthopédie D, hôpital Salengro, CHRU de Lille, place de Verdun, 59037 Lille cedex, France; Université Lille Nord de France, 59000 Lille cedex, France.
authors.forename: S
authors.initials: S
authors.lastname: Putman
authors.affiliation: Service d'orthopédie D, hôpital Salengro, CHRU de Lille, place de Verdun, 59037 Lille cedex, France; Université Lille Nord de France, 59000 Lille cedex, France.
authors.forename: A
authors.initials: A
authors.lastname: Arnould
authors.affiliation: Service d'orthopédie D, hôpital Salengro, CHRU de Lille, place de Verdun, 59037 Lille cedex, France; Université Lille Nord de France, 59000 Lille cedex, France.
authors.forename: G
authors.initials: G
authors.lastname: Dereudre
authors.affiliation: Service d'orthopédie D, hôpital Salengro, CHRU de Lille, place de Verdun, 59037 Lille cedex, France; Université Lille Nord de France, 59000 Lille cedex, France.
authors.forename: H
authors.initials: H
authors.lastname: Migaud
authors.affiliation: Service d'orthopédie D, hôpital Salengro, CHRU de Lille, place de Verdun, 59037 Lille cedex, France; Université Lille Nord de France, 59000 Lille cedex, France.
authors.forename: G
authors.initials: G
authors.lastname: Pasquier
mesh_terms: D000368:Aged; D019645:Arthroplasty, Replacement, Knee / Q000379:methods*; D005260:Female; D005269:Femur / Q000601:surgery*; D006801:Humans; D007720:Knee Prosthesis; D008297:Male; D008875:Middle Aged; D016348:Osseointegration; D011474:Prosthesis Design; D012086:Reoperation / Q000379:methods; D013635:Tantalum
chemical_list: D013635:Tantalum
keywords: Bone defects; Revision total knee arthroplasty; Tantalum; Trabecular metal cone