It is a growing adolescent disease. It combines ossificattion disorder of calcaneum growth cartilage and overexploitation of the Achilles tendon (pulse sports, practiced intensively). In almost every other case, it affects both ankles. It is also called a calcaneous posterior growth process.
It manifests itself in disabling pain behind the ankle or under the heel, yielding to rest. It can also prevent the heel from being placed on the step. The digital pressure of the area reproduces the pain.
The management involves sports rest, painkillers and anti-inflammatories, ice application, wearing damping soles, stretching exercises including antagonistic muscles (performing reverse movements), and sometimes undercover.
Finally, it is the knee equivalent of Osgood-Schlatter’s syndrome.