Relationship between joint motion and flexor tendon force in the canine forelimb

The Journal of Hand Surgery
R L LieberR H Gelberman

Abstract

To increase in vivo tendon force and gliding after flexor tendon repair, a variety of modifications to the methods by which protective passive motion is administered have been advocated. To determine the relationship between the prime variables, wrist and digital position, muscle activation, and in vivo tendon force, a clinically relevant canine model was developed. Force was measured in the flexor tendon during several joint manipulation paradigms: single-finger flexion-extension with the wrist flexed (group 1F), single-finger flexion-extension with the wrist extended (group 1E), four-finger flexion-extension with the wrist flexed (group 4F), four-finger flexion-extension with the wrist extended (group 4E), and synergistic wrist and finger motion where wrist extension and finger flexion were performed simultaneously, followed by wrist flexion and finger extension (group SYN). In addition, tendon force was measured during electric stimulation of the proximal flexor muscle mass. Passive tendon force with the wrist extended (groups 1E and 4E) was two to three times greater than that measured with the wrist flexed, independent of the number of digits moved. With the wrist extended, peak tendon force reached 1,997 g +/- 194 g durin...Continue Reading

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Citations

Sep 1, 2005·The Journal of Hand Surgery : Journal of the British Society for Surgery of the Hand·J C BerschbackK N An
Aug 24, 2001·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·C ZhaoK N An
Sep 1, 2014·Gene·Marilize C BurgerMalcolm Collins
Nov 24, 1999·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·M J SilvaR H Gelberman
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Aug 16, 2002·Journal of Orthopaedic Science : Official Journal of the Japanese Orthopaedic Association·Matthew J SilvaRichard H Gelberman
Aug 17, 2010·The Journal of Hand Surgery·Jan FridénRichard L Lieber
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Aug 2, 2005·Journal of Hand Therapy : Official Journal of the American Society of Hand Therapists·Chunfeng ZhaoKai-Nan An
Aug 2, 2005·Journal of Hand Therapy : Official Journal of the American Society of Hand Therapists·Tatsuro TanakaKai-Nan An
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Mar 27, 2009·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Stavros ThomopoulosRichard H Gelberman
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