The rupture of the calcaneal tendon is a frequent lesion requiring surgical management. For chronic disruption in particular, restorative surgery is desirable and several methods have been described. We report a retrospective study of eight cases of chronic rupture of the calcaneal tendon treated surgically by myotendinousplasty in V-Y according to Abraham, collected in the Traumatology and Orthopedics II department of the Mohammed V Military Teaching Hospital in Rabat Morocco between 2010 and 2015. The majority of patients were male. The cause of chronic rupture of the calcaneal tendon was a diagnostic error in 25% of the cases, a lack of knowledge of the pathology in 62.5% of the cases and negligence in 12.5% of the cases. The results were evaluated according to the Kitaoka score after an average follow-up of three years. They were very satisfied with a score of 89%. The aim of this study is to highlight the difficulty of making the diagnosis in certain circumstances, which is the cause of chronic rupture and to underline the interest of the surgical treatment, by the myotendinousplasty "V-Y" in this case