Primary Article

Tendon Healing in Dogs with Emphasis on Tensile Strength and Cellular Patterns

Authors: E. T. PRESTON, MD

Abstract

AbstractSeventeen normal flexor tendons in three adult dogs were tested for tensile strength on an Instron at varying times after tendon incision and repair. The cellular characteristics correlated with the tensile strength. Fifteen weeks after operation and repair, the tensile strength was 15% of normal, and at 40 weeks after operation was only 50% of normal. The average tensile strength of the flexor digitorum profundus in a normal adult dog was 8,000 gm per square millimeter. At 16 weeks after operation, fibroblasts were moderate in number and collagen was abundant and continuous with that of tendon ends. Complete physiologic remodeling did not occur for many months.

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References