Immediate postoperative active motion after flexor tendon repair is a recurring theme in hand surgery. In the present study the authors determined the tensile stress of the sutured tendon subjected to active motion by the use of cadaveric hands and a tensiometer. The force necessary to draw forth the proximal stump was also measured. A tendon suture which can resist two kilo-ponds tensile force seems to allow active motion of the reconstructed flexor tendon.
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