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Polímeros

versão impressa ISSN 0104-1428

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DUEK, Julia Rezende et al. Membrane PLDLA-TMC as shield regeneration in the calcaneal tendon: Study in live rabbits. Polímeros [online]. 2014, vol.24, n.3, pp.360-366.  Epub 27-Maio-2014. ISSN 0104-1428.  https://doi.org/10.4322/polimeros.2014.021.

The most common problem in reconstructive surgery of the flexor tendons is prevent adhesion formation by limiting its movement. Thus, it is very desirable that healing occurs as quick as possible, restoring tendons sliding capability, without limitation of movement. The objective of this study was to analyze the strength of the Achilles tendon, using PLDLA-TMC membrane as protector of the adhesion of adjacent tissues implanted in New Zealand rabbits. Twenty rabbits were used, divided into two groups, which were submitted to the section of the Achilles tendon and posterior suture with modified Kessler technique. In group A, after suturing, the animals were sacrificed and the tendon was sent for mechanical tests. In group B, after three weeks, the animals were sacrificed and the material was subjected to histological analysis. The results of the mechanical tests showed improvement in the values of the tensile strength of the implants with the membrane, compared to the sutured ones. In the injury healing process, better organization of collagen fibers occurred when the PLDLA-TMC polymer was used, and a smaller scar tissue adhesion was developed. In conclusion, the PLDLA-TMC membrane is promising in the repair of tendon injures.

Palavras-chave : Terpolymer; PLDLA-TMC; tendon; repair.

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