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Scientific Articles   |    
Ultraporous β-Tricalcium Phosphate Alone or Combined with Bone Marrow Aspirate for Benign Cavitary LesionsComparison in a Prospective Randomized Clinical Trial
Timothy A. Damron, MD1; Jennifer Lisle, MD2; Tina Craig, CRC1; Michael Wade, MS1; Walter Silbert, MD1; Hal Cohen, MD1
1 Department of Orthopedic Surgery, SUNY Upstate Medical University, 6620 Fly Road, East Syracuse, NY 13057. E-mail address for T.A. Damron: damront@upstate.edu
2 University of Vermont Medical Center, 426C Stafford Hall, 92 Carrigan Drive, Burlington, VT 05405
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  • Disclosure statement for author(s): PDF

Investigation performed at the Department of Orthopedic Surgery, SUNY Upstate Medical University, East Syracuse, New York



Disclosure: One or more of the authors received payments or services, either directly or indirectly (i.e., via his or her institution), from a third party in support of an aspect of this work. In addition, one or more of the authors, or his or her institution, has had a financial relationship, in the thirty-six months prior to submission of this work, with an entity in the biomedical arena that could be perceived to influence or have the potential to influence what is written in this work. No author has had any other relationships, or has engaged in any other activities, that could be perceived to influence or have the potential to influence what is written in this work. The complete Disclosures of Potential Conflicts of Interest submitted by authors are always provided with the online version of the article.

Copyright © 2013 by The Journal of Bone and Joint Surgery, Inc.
J Bone Joint Surg Am, 2013 Jan 16;95(2):158-166. doi: 10.2106/JBJS.K.00181
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Abstract

Background: 

Ultraporous β-tricalcium phosphate (TCP) synthetic graft material (Vitoss; Orthovita) persists for a year or longer in some cases. In this study, we prospectively examined healing of cavitary defects filled with TCP versus TCP and bone marrow aspirate (TCP/BM) with the hypothesis that bone-marrow aspirate speeds incorporation of bone graft substitute.

Methods: 

Fifty-five patients with a benign bone lesion undergoing surgical curettage were randomized to receive TCP (N = 26; mean duration of follow-up [and standard deviation], 20.2 ± 7.2 months) or TCP/BM (N = 29; mean duration of follow-up, 18.0 ± 7.7 months). There were no significant differences between the groups with regard to demographic or defect parameters. Clinical and radiographic evaluations were done at 1.5, three, six, twelve, eighteen, and twenty-four months, and computed tomography [CT] scans were performed at twelve months. An independent radiographic review was done to evaluate six parameters.

Results: 

There was a significant (p < 0.001) increase in trabeculation through the defect and graft resorption with decreases in the persistence of the graft in both soft tissue and the defect as well as a decreased radiolucent rim around the graft over time. No significant differences were observed between the TCP and TCP/BM groups in terms of any radiographic parameter. No complications related to the graft material or BM were identified.

Conclusions: 

While significant improvements in radiographic parameters were observed in both TCP groups over two years of follow-up, the addition of BM was not found to provide any significant benefit. Results should not be extrapolated to other bone graft substitutes used for this purpose.

Level of Evidence: 

Therapeutic Level I. See Instructions for Authors for a complete description of levels of evidence.

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    References

    Accreditation Statement
    These activities have been planned and implemented in accordance with the Essential Areas and policies of the Accreditation Council for Continuing Medical Education (ACCME) through the joint sponsorship of the American Academy of Orthopaedic Surgeons and The Journal of Bone and Joint Surgery, Inc. The American Academy of Orthopaedic Surgeons is accredited by the ACCME to provide continuing medical education for physicians.
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