Processus Stieda
Symptomatic
non-united fracture of the entire posterior process of the talus. Schematic diagram of pathologies involving the lateral tubercle of the posterior talar process (FHL marked by the orange circle).
Stieda
process • Posterior ankle impingement - Ganzer Fall bei Radiopaedia
Stieda
process • Stieda process - Ganzer Fall bei Radiopaedia
Ankle
impingement. A lateral radiograph demonstrates an elongated posterolateral (trigonal) process of the talus (Stieda process)
Stieda
process • Stieda process - Ganzer Fall bei Radiopaedia
Stieda
process • Stieda process - Ganzer Fall bei Radiopaedia
Stieda process (not to be confused with a Pellegrini-Stieda lesion) refers to an elongated lateral tubercle of the posterior process of the talus . It is often considered an anatomical variant.
It forms from fusion of a secondary ossification center at the posterolateral aspect of the talus with rest of the talus (this typically occurs between 7-13 years) where the fused segment remains longer than usual .
It is best appreciated on a lateral ankle radiograph or sagittal CT/MRI views.
Related pathology
- acute fracture of the Stieda process
- it can be associated with posterior ankle impingement syndrome from impingement between the tibia and the calcaneus, especially in plantar flexion. In some symptomatic situations, it is resected
Differential diagnosis
It needs to be differentiated from an os trigonum (particularly if partially fused): which refers to a separate bony ossicle at the lateral tubercle of the talus.
History and etymology
It is named after L Stieda who is considered the first person to describe this in 1869 .
Siehe auch:
und weiter:
Assoziationen und Differentialdiagnosen zu Processus Stieda:
