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KMID : 0377619870520020085
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Korean Jungang Medical Journal
1987 Volume.52 No. 2 p.85 ~ p.90
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Experimental Studies in Chickens for Digital Flexor Sheath Defect Over Primary Tendon Repair
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Abstract
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The treatment objective for tendon repair is to restore digital motion by providing tendon healing and preserving tendon gliding.
Preservation of the sheath contributes to survival of the graft and helps maintaining the integrity of gliding surfaces with maximal functional restoration and minimal formation of adhesion.
Preservation of as much as possible of the tendon sheath is essential in tendon repairs within the sheath region.
Recent experimental studies have suggested that existence of intrinsic tendon healing capability, the tendon would heal in a synovial lined environment without adhesions, and synovial fluid was an important source of nutrients for the tendon healing process.
The flexor tendon sheath of chicken was identified, and a section of the sheath was removed. The defect in the sheath was covered by free skin graft, fascia graft, contralateral synovial graft, and silastic sheet graft, respectively.
The results are as follows:
1. When the synovial sheath was grafted, less restrictive appearing adhesions than sheath was not grafted.
2. The amount of adhesion formation in the group of skin grafts were significant higher than in the group of fascia grafts, and least adhesion formation were noted in the group of contralateral synovial sheath grafts.
3. Further research is needed to evaluate tendon strength and gliding after coverage of a sheath defect with a graft over a tendon repair.
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