Abstract
Because of the high range of variability in osseous, ligamentous and chondral lesions, fractures of the ankle joint represent a significant challenge to the attending surgeon. For the selection of the appropriate method of treatment a sound knowledge of the biomechanics of the ankle joint and an accurate analysis of the pathomechanics are essential to understanding the extent of the injury. Preoperative planning including a CT scan with comparison of the uninjured side plays an essential role in this context. Intraoperative 3D fluoroscopy is becoming increasingly important for the verification of accurate surgical treatment. Anatomic repositioning of fractures and restoration of all joint congruences and ligamentous stability are essential for successful osteosynthesis. Remaining instabilities and incongruities represent pre-arthritic deformities and must be detected prompty.
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