Comparison of the holding capacity of round monofilament, round multifilament, and flat multifilament nitinol suture loops in human cadaveric flexor tendon

作者：Karjalainen T^*; He M; Chong A K S; Lim A Y T; Goransson H; Ryhanen J

来源：Journal of Hand Surgery-European Volume, 2012, 37E(5): 459-463.

DOI：10.1177/1753193411430034

• Flexor tendon repair
• monofilament
• multifilament
• nitinol
• suture

Tendon repairs done with strong suture materials fail by suture pull out. To avoid pull out, suture loop needs to have a strong grip on the tendon. The aim of this study was to determine whether a single suture loop has a better grip of the tendon when multifilament or flat sutures are used compared with a conventional monofilament round suture. A cross-locking or simple grasping suture loop was placed into the distal end of a human cadaveric tendon using nitinol wire sutures in the following configurations: round monofilament (200 mu m), round multifilament (4 x 100 mu m), and flat multifilament (4 x 30 mu m x 445 mu m). The mean pull-out strength of the round multifilament (49.4 N) and flat multifilament sutures (50.7 N) were significantly higher than that of the round monofilament nitinol suture (36.5 N) when a locking loop was used. Suture grip can be improved by using a multifilament suture and a locking type of suture configuration.

• 出版日期2012-6