[Lateral ligament injuries].

Due to the frequency and potentially complicated course distortion of the upper angle joint represents an important entity in the orthopedic patient clientele. The initial diagnosis includes a detailed anamnesis of the injury mechanism and an accurate clinical examination. To exclude bony, ligamentous and chondral lesions, besides basic diagnostics consisting of X‑rays and ultrasound, magnetic resonance imaging (MRI) is considered the most important tool. Lateral ankle ligament injuries are generally treated conservatively. After a short period consisting of immobilization of the affected ankle, early functional therapy with semi-rigid orthoses and proprioceptive exercises should be performed. If conservative therapy fails and thus chronic instability develops the indications for operative treatment are given. Meanwhile, surgical techniques have been established with satisfactory results. Inadequate rehabilitation could be identified as a major risk factor for re-injury, therefore phase-adapted aftercare has gained significant importance.