The effect of glenoid component size on the stability of total shoulder arthroplasty

Nattapol Tammachote, John W. Sperling, Lawrence J. Berglund, Scott P. Steinmann, Robert H. Cofield, Kai N. An

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Frequently, during the course of total shoulder arthroplasty, the measurement of the patient's native glenoid is between the available prosthetic glenoid sizes. Technically, it may be easier for the surgeon to implant a smaller glenoid component. Currently, there is no information regarding the difference in joint stability by use of glenoid components of different sizes. Stability ratio measurements were performed by use of a multiaxis testing machine with 3 different glenoid sizes (small, medium, and large) and compared by use of analysis of variance and the Tukey HSD test. Changes in the size of the glenoid component were found to have a significant effect on the stability ratio. At a load of 50 N, the stability ratio increased by 18% from the small to the medium glenoid component and by 15% from the medium to the large glenoid in the superoinferior axis. In the anteroposterior axis, the stability ratio increased by 17% from small to medium and by 10% from medium to large. The results from this study indicate a modest increase in stability when one chooses the larger of the 2 glenoid components.

Original languageEnglish (US)
JournalJournal of Shoulder and Elbow Surgery
Volume16
Issue number3 SUPPL.
DOIs
StatePublished - May 2007

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Arthroplasty
Analysis of Variance
Joints
Surgeons

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Surgery

Cite this

Tammachote, N., Sperling, J. W., Berglund, L. J., Steinmann, S. P., Cofield, R. H., & An, K. N. (2007). The effect of glenoid component size on the stability of total shoulder arthroplasty. Journal of Shoulder and Elbow Surgery, 16(3 SUPPL.). https://doi.org/10.1016/j.jse.2006.03.012

The effect of glenoid component size on the stability of total shoulder arthroplasty. / Tammachote, Nattapol; Sperling, John W.; Berglund, Lawrence J.; Steinmann, Scott P.; Cofield, Robert H.; An, Kai N.

In: Journal of Shoulder and Elbow Surgery, Vol. 16, No. 3 SUPPL., 05.2007.

Research output: Contribution to journalArticle

Tammachote, N, Sperling, JW, Berglund, LJ, Steinmann, SP, Cofield, RH & An, KN 2007, 'The effect of glenoid component size on the stability of total shoulder arthroplasty', Journal of Shoulder and Elbow Surgery, vol. 16, no. 3 SUPPL.. https://doi.org/10.1016/j.jse.2006.03.012
Tammachote, Nattapol ; Sperling, John W. ; Berglund, Lawrence J. ; Steinmann, Scott P. ; Cofield, Robert H. ; An, Kai N. / The effect of glenoid component size on the stability of total shoulder arthroplasty. In: Journal of Shoulder and Elbow Surgery. 2007 ; Vol. 16, No. 3 SUPPL.
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