The Experimental Study Of Modified Kessler+running Suture Method Of Tendon With Single Strand

Objective: Flexor tendon injury has long been recognized as a difficult problem to tackle in hand surgery. The reason is postoperative adhesion. The increased understanding in tendon adhesion has drastically improved results of flexor tendon repair. Now experiments show that early active motion can mostly decrease the adhesion extent. However, current surgical repairs are not strong enough to withstand early active motion during rehabilitation and this induces adhesion around the repaired tendon. Finding a more robust repair to allow early active motion is necessary. This study is designed to compare two tendon suture techniques to determine which method is a more rigid> practicak reliable one applicable to early active motion, method: Seventy white Leghorn chickens were devided into 2 groupes. The long toes of each side were assigned for following procedures seprerately: Group A: On the right side in zero II flexor digitorum profundus tendon was sharply transected and was repaired by modified Kessler+running suture method of tendon with single strand. Group B: the left tendons were sutured by Kessler method with single strand. The sheaths were closed. The time of suture was also recorded. The common examination of the adhesion property under the microscope was performed after six weeks . B-us and histologically examination were adapted to assess the tendon healing at days: 14d, 28d, 56d. The test of scanning electronic microscope was performed after eight weeks. The 2mm gap formation force and failure load were tested at days: Od, 2Sd by computer and testing machine. SPSS was used to analyze statistical difference among these above- mentioned techniques. Result: The adhesion property in group A was less than that of group B under the microscope. The result of histologically examination showed that there was no significant difference between the two groups. The result of B-us showed the healing speed of group A was quicker than that of group B. The result of scanning electronic microscope indicated the adhesion extent of group A was less than that of group B. Tendons respaired with Cheng method suture technique had significantly more tensile strength at 2mm gap...