[Morphological characteristics of regenerated tendons developing under various biomechanical conditions]

Regeneration after the primary tendon suture under conditions of decreased, restored, and increased tissue pressure in the seam zone registered by needle pressure transducers was studied experimentally in dogs. Histological and histochemical investigations of the wound healing process demonstrated friable expansible tissue abundant with blood vessels to form in the damage zone when the tissue pressure was decreased; restoration of the original tissue pressure was accompanied by accelerated formation of tendon-like tissue in the wound diastasis; a rise in tissue pressure resulted in the formation of hyperregenerating scar with numerous comissures to the surrounding organs.