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Journal of Hand Surgery (British and European Volume)
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Articles

Flexor Tendon Repair Using a Stainless Steel External Splint

Biomechanical study on human cadaver flexor tendons

L. GORDON
F. A. DYSARZ
K. T. VENKATESWARA
A. P. MOK
R. O. RITCHIE
S. RABINOWITZ

From the Hand and Microsurgery Research Laboratory, Department of Orthopedic Surgery, California Medical Center, San Francisco and the Department of Material Science and Mineral Engineering, University of California, Berkeley, CA, USA

Correspondence: L. Gordon MD, The Gordon-Bickel Hand Clinic Inc., 2300 California Street Medical Building, Suite 3000, San Francisco, CA 94115, USA. E-mail: lghand{at}aol.com

A stainless steel external tendon splint was used in repair of cadaver tendons and compared with standard tendon repairs with suture. The splint was combined with a Kessler repair and tested against the Kessler, Becker, and Savage repairs in fresh human cadaver flexor digitorum profundus tendons. Biomechanical testing was done on a tensile testing machine, and load-displacement curves were generated. The repairs using the external tendon splint demonstrated a range of improvement of 32 to 146% in mean maximal tensile strength and a 20 to 185% improvement of mean ultimate tensile strength compared with all other repairs. The external tendon splint is relatively easy to apply to a tendon. The repair is strengthened and becomes capable of withstanding early active range of motion excercises. In vivo testing will be needed to assess the potential clinical usefulness of such a device.

Journal of Hand Surgery (British and European Volume), Vol. 24, No. 6, 654-657 (1999)
DOI: 10.1054/JHSB.1999.0287
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