Canine carpal joint fusion: A model for four-corner arthrodesis using a porous tantalum implant

Julie E. Adams, Mark E. Zobitz, John S. Reach, Kai Nan An, David G. Lewallen, Scott P. Steinmann

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Purpose: Interest has focused on porous materials that promote bony ingrowth. In this study a porous tantalum implant was used as an adjunct to intercarpal stabilization in a canine model of wrist arthrodesis. Methods: A defect was created at the junction of the radiocarpal, ulnocarpal, and fourth carpal bones, analogous to a four-corner fusion site in humans. A tantalum cylinder was press-fit and stabilized with K-wires. Controls were represented by creating the defect without implant placement. Animals were killed at 4, 8, and 12 weeks. Results: Histology showed bony ingrowth as early as 4 weeks and mechanical testing showed a statistically significant increase in strength of the construct over time. Controls failed to achieve union at any time point. Conclusions: The implant served as an adjunct to stabilization of the carpus in this model of four-corner fusion, suggesting a novel application of this material in conditions in which bone graft has been required previously. This study represents a preliminary investigation of the use of a tantalum device for intercarpal stabilization; it does not compare this technique with conventional methods.

Original languageEnglish (US)
Pages (from-to)1128-1135
Number of pages8
JournalJournal of Hand Surgery
Volume30
Issue number6
DOIs
StatePublished - Nov 2005

Fingerprint

Tantalum
Wrist Joint
Arthrodesis
Canidae
Carpal Bones
Wrist
Histology
Transplants
Bone and Bones
Equipment and Supplies

Keywords

  • Four-corner fusion
  • Limited wrist arthrodesis
  • Porous metal
  • Tantalum
  • Trabecular metal

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Surgery

Cite this

Adams, J. E., Zobitz, M. E., Reach, J. S., An, K. N., Lewallen, D. G., & Steinmann, S. P. (2005). Canine carpal joint fusion: A model for four-corner arthrodesis using a porous tantalum implant. Journal of Hand Surgery, 30(6), 1128-1135. https://doi.org/10.1016/j.jhsa.2005.08.008

Canine carpal joint fusion : A model for four-corner arthrodesis using a porous tantalum implant. / Adams, Julie E.; Zobitz, Mark E.; Reach, John S.; An, Kai Nan; Lewallen, David G.; Steinmann, Scott P.

In: Journal of Hand Surgery, Vol. 30, No. 6, 11.2005, p. 1128-1135.

Research output: Contribution to journalArticle

Adams, JE, Zobitz, ME, Reach, JS, An, KN, Lewallen, DG & Steinmann, SP 2005, 'Canine carpal joint fusion: A model for four-corner arthrodesis using a porous tantalum implant', Journal of Hand Surgery, vol. 30, no. 6, pp. 1128-1135. https://doi.org/10.1016/j.jhsa.2005.08.008
Adams, Julie E. ; Zobitz, Mark E. ; Reach, John S. ; An, Kai Nan ; Lewallen, David G. ; Steinmann, Scott P. / Canine carpal joint fusion : A model for four-corner arthrodesis using a porous tantalum implant. In: Journal of Hand Surgery. 2005 ; Vol. 30, No. 6. pp. 1128-1135.
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