Objective To explore the biomechanical properties of the suture of Mclarney and Adelaide in the flexor digitorum tendon of pigs.Methods Forty fresh frozen tendons of deep flexor digitorum profundus of pig's forefoot were randomly divided into two groups:group A suture tendons by Adelaide method,and group B suture tendons by Mclarney method.Stretch the tendon on a biomechanical machine,record the load when the tendon is 2 mm apart and the maximum tensile load when the tendon breaks,and check and record the failure mode of the tendon.Results The 2 mm gap load in two groups were(50.06±4.47)N and(31.26±2.67)N re-spectively,and the maximum load was(69.09±5.11)N and(48.58±4.41)N respectively.The 2 mm gap load and maximum load between two groups were statistically different(P=0.001,P＜0.05).In group A,there were 17 cases of suture rupture and 3 cases of tendon avulsion.In group B,there were 4 cases of suture rupture and 16 cases of tendon avulsion.Conclusion Adelaide suture has better mechanical properties than Mclarney,and can provide greater tensile strength,which can provide safety guarantee for patients'early active functional exercise after operation.
维普
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