Kinematics and laxity of the Souter-Strathclyde total elbow prosthesis

Alberto G. Schneeberger, Graham J W King, Seok Whan Song, Shawn W. O'Driscoll, Bernard F. Morrey, Kai Nan An

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

The motion pattern and laxity of 8 cadaveric elbows were recorded with a 3-dimensional electromagnetic tracking device before and after the Souter-Strathclyde total elbow prosthesis was implanted. The Souter-Strathclyde prosthesis replicates the valgus-varus motion pattern of the intact elbow but causes a significant internal rotation of the ulnar shaft of 8.9° ± 4..1° (P < .0005) at 110° of elbow flexion. One of the reasons for this unphysiological motion pattern is positioning of the humeral component in a mean of 5.4° ± 6.4° of external rotation compared with the intact elbow (P = .05). This positioning is related to the design of this device. The Souter-Strathclyde elbow prosthesis has a mean maximum valgus-varus laxity of 6.5° ± 1.5° compared with 4.3° ± 2.3° for the intact elbow (P = .004). This implant is more constrained than previously tested devices, which may explain its relatively higher loosening rate.

Original languageEnglish (US)
Pages (from-to)127-134
Number of pages8
JournalJournal of Shoulder and Elbow Surgery
Volume9
Issue number2
DOIs
StatePublished - 2000

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Elbow Prosthesis
Elbow
Biomechanical Phenomena
Equipment Design
Equipment and Supplies
Electromagnetic Phenomena
Prostheses and Implants

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Surgery

Cite this

Schneeberger, A. G., King, G. J. W., Song, S. W., O'Driscoll, S. W., Morrey, B. F., & An, K. N. (2000). Kinematics and laxity of the Souter-Strathclyde total elbow prosthesis. Journal of Shoulder and Elbow Surgery, 9(2), 127-134. https://doi.org/10.1067/mse.2000.103616

Kinematics and laxity of the Souter-Strathclyde total elbow prosthesis. / Schneeberger, Alberto G.; King, Graham J W; Song, Seok Whan; O'Driscoll, Shawn W.; Morrey, Bernard F.; An, Kai Nan.

In: Journal of Shoulder and Elbow Surgery, Vol. 9, No. 2, 2000, p. 127-134.

Research output: Contribution to journalArticle

Schneeberger, AG, King, GJW, Song, SW, O'Driscoll, SW, Morrey, BF & An, KN 2000, 'Kinematics and laxity of the Souter-Strathclyde total elbow prosthesis', Journal of Shoulder and Elbow Surgery, vol. 9, no. 2, pp. 127-134. https://doi.org/10.1067/mse.2000.103616
Schneeberger, Alberto G. ; King, Graham J W ; Song, Seok Whan ; O'Driscoll, Shawn W. ; Morrey, Bernard F. ; An, Kai Nan. / Kinematics and laxity of the Souter-Strathclyde total elbow prosthesis. In: Journal of Shoulder and Elbow Surgery. 2000 ; Vol. 9, No. 2. pp. 127-134.
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