Biomechanical study of the suture strength of cruciate ligament and it's clinical application
- VernacularTitle:膝十字韧带移植重建术中韧带末端缝合固定的生物力学研究及临床应用
- Author:
Chunli ZHANG
;
Hongbin FAN
;
Mingquan LI
- Publication Type:Journal Article
- Keywords:
Anterior cruciate ligament;
Posterior cruciate ligament;
Transplantation;
Biomechanics;
Arthroscopy
- From:
Chinese Journal of Orthopaedics
1998;0(12):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To test the strength of different suture fixation of tendon or ligament end and evaluate appropriate stitches number in cruciate ligament reconstruction. Methods Twenty-four specimens of patellar tendon with free ends, which was, divided into 3 groups according 2 or 3 stitches and 6 subgroups using different suture materials, either with No1 Ethilon or 0.4 mm diameter stainless steel wire, fixed with Krackow locking stitch, the tensile test were undertaken respectively, so as to find out the least stitches and efficient suture pattern. Results Two Krackow locking stitches had more strength than that of 0.4 mm diameter stainless steel wire itself, the fixation strength of 2 stitches which used No1 Ethilon was more than 80 N, superior to the failure strength of material itself, it still maintained the same strength if the first stitch was across the tendon tissue transversely. On the basis of testing results, this modified stitches pattern was used in 17 cases, all could be well withstand an accelerated postoperative ROM rehabilitation program in clinical practice. Conclusion There is no significant difference between 2 and 3 Krackow locking stitches in suture strength statistically, the fixation strength is superior to the suture material, it can lessen the suture exposure when the first stitch is across the tendon tissue while maintains a comparable strength to other suture. If attempt to make a higher strength of suture, one should focus on selecting a stronger materials or adding the suture materials in number, therefore, a rapid early ROM rehabilitation is possible and reliable in practice.
