A Regenerated Achilles Tendon with Good Function One Year After Total Extirpation Due to Infection - A Case Report

Delayed Achilles tendon ruptures leaving large defects are difficult to treat, and the potential for tendon regeneration is thought to be limited. Furthermore, post-operative wound healing problems, sometimes including infections, can be challenging to treat and negatively affect rehabilitation.

This 74-year-old lady suffered from insertional Achilles tendinopathy. After treatment with a local cortisone injection, she sustained a total insertional Achilles tendon rupture. This rupture was treated conservatively, and after treatment the Achilles re-ruptured in the insertional area. The rupture was then treated with re-insertion into the calcaneal insertion. Early in the post-operative period the patient sustained a deep surgical wound infection and sepsis. Because of poor effect of treatment with antibiotics, and total tendon destruction, the whole Achilles was extirpated. After extirpation there was immobilization in a cast followed by mobilization and gradually increased loading. At a one-year follow-up, the patient was walking without a limp, could do heel-raise halfway up standing on one leg, there was a palpable Achilles tendon and ultrasound scanning showed a structure very similar to a slightly thickened and tendinopathic Achilles tendon. There was an obvious regeneration of the whole Achilles tendon, and the tendon function was surprisingly good.

This case study clearly shows the regeneration potential in the Achilles tendon and provides significant knowledge of importance for clinicians dealing with Achilles tendon injuries.