Abstract
The gliding resistance between the flexor digitorum profundus (FDP) tendon and the proximal pulley system was measured using the method of S. Uchiyama, J.H. Coert, L. Berglund, P.C. Amadio, K.N. An (J. Orthop. Res. 13 (1995) 83) in 108 adult dog digits in vitro. The FDP tendons were then lacerated to 80% of their transverse section. Each tendon was repaired with one of the following six suture techniques: Kessler, modified Kessler, Savage, Lee, Becker and simple running suture alone. Each repaired tendon was then tested again using the same method. The Student–Newman–Keuls test for multiple comparisons was performed for statistical analysis. The average gliding resistances of the Kessler, Savage, and Becker repairs were significantly greater than the resistances of the Lee, modified Kessler, and running suture alone repairs ( P<0.05). The Lee suture technique had a significantly greater resistance than the modified Kessler repair and the running suture ( P<0.05). The results of the peak gliding resistance followed the same trends, except that the modified Kessler repair was significantly higher than the running suture alone ( P<0.05). Suture techniques with a multi-strand core suture, with knots located outside the tendon surface, and with multiple-loops on the tendon surface may result in increased gliding resistance between the tendon and pulley system after tendon repair.
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