Retrieval of a well-functioning extensor mechanism allograft from a total knee arthroplasty: CLINICAL AND HISTOLOGICAL FINDINGS

R. S. J. Burnett; V. L. Fornasier; C. M. Haydon; B. M. Wehrli; C. N. Whitewood; R. B. Bourne

doi:10.1302/0301-620X.86B7.15182

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Retrieval of a well-functioning extensor mechanism allograft from a total knee arthroplasty

CLINICAL AND HISTOLOGICAL FINDINGS

R. S. J. Burnett
V. L. Fornasier
C. M. Haydon
B. M. Wehrli
C. N. Whitewood
R. B. Bourne

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Retrieval of a well-functioning extensor mechanism allograft from a total knee arthroplasty

Burnett RSJ, Fornasier VL, Haydon CM, Wehrli BM, Whitewood CN, Bourne RB. Retrieval of a well-functioning extensor mechanism allograft from a total knee arthroplasty. J Bone Joint Surg Br. 2004;86-B(7):986-990. doi:10.1302/0301-620X.86B7.15182

Burnett, R. S. J., et al. “Retrieval of a well-functioning extensor mechanism allograft from a total knee arthroplasty.” The Journal of Bone & Joint Surgery British Volume, vol. 86-B, no. 7, 2004, pp. 986-990., https://doi.org/10.1302/0301-620X.86B7.15182

Burnett, R. S. J., Fornasier, V. L., Haydon, C. M., Wehrli, B. M., Whitewood, C. N., & Bourne, R. B. (2004). Retrieval of a well-functioning extensor mechanism allograft from a total knee arthroplasty. The Journal of Bone & Joint Surgery British Volume, 86-B(7), 986-990. https://doi.org/10.1302/0301-620X.86B7.15182

Burnett, R. S. J., Fornasier, V. L., Haydon, C. M., Wehrli, B. M., Whitewood, C. N. and Bourne, R. B. (2004) “Retrieval of a well-functioning extensor mechanism allograft from a total knee arthroplasty.” The Journal of Bone & Joint Surgery British Volume, 86-B(7), pp. 986-990. Available at: https://doi.org/10.1302/0301-620X.86B7.15182

Burnett, R. S. J., V. L. Fornasier, C. M. Haydon, B. M. Wehrli, C. N. Whitewood, and R. B. Bourne. “Retrieval of a well-functioning extensor mechanism allograft from a total knee arthroplasty.” The Journal of Bone & Joint Surgery British Volume 86-B, no. 7 (2004): 986-990. https://doi.org/10.1302/0301-620X.86B7.15182

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Abstract

We present the histological findings of an extensor mechanism allograft which was used in a total knee arthroplasty two years after implantation. Analysis of the graft was undertaken at four distinct anatomical levels and it was found to be incorporated into host tissue at each level. A wedge of fibrinoid necrosis, probably related to impingement of the graft on the tibial polyethylene insert, was seen. Impingement may play a role in the injury and necrosis of an allograft and may be one mode of failure in an extensor mechanism allograft.

Correspondence should be sent to Mr R. S. J. Burnett at Department of Orthopedic Surgery, Washington University School of Medicine, Campus Box 8233, 660 South Euclid Avenue, St Louis, Missouri 63110, USA.

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