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Category:   Trauma; HindfootIntroduction/Purpose:   The surgical reconstruction of the Achilles tendon has evolved in favor of the use of percutaneous techniques over the traditional approach with wide approaches to reduce the complications inherent to this procedure. These percutaneous techniques can present lesions of the sural nerve. The objective of this study is to evaluate the distance of this structure with respect to the instruments used in the Dresden technique.Methods:   Dissections were made in 16 anatomical pieces (ankles) to which a reproduction of the complete Achilles lesion was previously made and reconstructed using the technique to be studied. After this, the distance of the instrument position with respect to the sural nerve was measured, as well as other relevant measures, and the presence or absence of nerve injury was evaluated.Results:   None of the pieces there was lesion of the sural nerve neither by direct injury nor by entrapment, in addition, an approximate distance of 10mm of the nerve was found with respect to the entry site of the percutaneous needles as described by the technique. The location of the nerve was always external to the Crural Fascia. We demonstrate a safety area in which the instruments can be used without lesions of the sural nerve.Conclusion:   The technique described by Amlang with the use of Dresden instruments has a low rate of cutaneous complications and infection compared to the traditional approach for this injury, we find that if the risk of presenting injury is performed properly of the sural nerve is low and its reproduction, for the repair of Achilles injuries, should be considered as the first option over traditional open management.

Sural Nerve Injury in the Achilles Tendon Repair with Dresden Instruments: Anatomical Study