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Wheeless' Textbook of Orthopaedics

Wheeless' Textbook of Orthopaedics

C.R. Wheeless MD

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Wheeless' Textbook of Orthopaedics


Year Book: The Tension-Stress Effect on the Genesis and Growth of

Tissues: Part I. The Influence of Stability of Fixation and

Soft-Tissue Preservation.

Ilizarov-GA.

Original Article: Clin Orthop. 1989 Jan. 238. pp 249-281.

ABSTRACT

Gradual traction on living tissues creates stresses that can

stimulate and maintain the regeneration and active growth of certain

tissue structures. This principle is called the Law of

Tension-Stress. The application of this principle allows control of

osseous healing and the shaping processes of bone and soft tissue.

To determine the optimal conditions for osteogenesis during limb

lengthening, and to assess the changes in soft tissues undergoing

elongation, 3 series of experiments were performed on canine tibia.

The experiments were done with 480 adult dogs divided into 5 groups.

In the first 3 groups, open transverse osteotomy of the tibial

diaphysis, periosteum, and bone marrow was performed, and

longitudinal distraction was achieved with the transfixion-wire

Ilizarov circular external skeletal fixator used in configurations of

differing stability. The last 2 groups of dogs were stabilized with

the same Ilizarov fixator, but with two thirds and total preservation

of bone marrow, periosteum, and intramedullary nutrient blood vessels

at the osteotomy level.

Osteogenic activity was least in the group with the most mobility

between bone ends. Osteogenesis overtook distraction and

consolidated bone prematurely in the group of maximal preservation of

bone marrow, blood vessels, and periosteum. In the group with two

thirds preservation, osteogenesis proceeded more actively than in any

of the 3 groups with complete transverse osteotomy.



Year Book: The Tension-Stress Effect on the Genesis and Growth of

Tissues: Part I. The Influence of Stability of Fixation and

Soft-Tissue Preservation.

Ilizarov-GA.

Original Article: Clin Orthop. 1989 Jan. 238. pp 249-281.

ABSTRACT

Gradual traction on living tissues creates stresses that can

stimulate and maintain the regeneration and active growth of certain

tissue structures. This principle is called the Law of

Tension-Stress. The application of this principle allows control of

osseous healing and the shaping processes of bone and soft tissue.

To determine the optimal conditions for osteogenesis during limb

lengthening, and to assess the changes in soft tissues undergoing

elongation, 3 series of experiments were performed on canine tibia.

The experiments were done with 480 adult dogs divided into 5 groups.

In the first 3 groups, open transverse osteotomy of the tibial

diaphysis, periosteum, and bone marrow was performed, and

longitudinal distraction was achieved with the transfixion-wire

Ilizarov circular external skeletal fixator used in configurations of

differing stability. The last 2 groups of dogs were stabilized with

the same Ilizarov fixator, but with two thirds and total preservation

of bone marrow, periosteum, and intramedullary nutrient blood vessels

at the osteotomy level.

Osteogenic activity was least in the group with the most mobility

between bone ends. Osteogenesis overtook distraction and

consolidated bone prematurely in the group of maximal preservation of

bone marrow, blood vessels, and periosteum. In the group with two

thirds preservation, osteogenesis proceeded more actively than in any

of the 3 groups with complete transverse osteotomy.

 
 
 
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