Posterior Malleolus — Indications for Fixation
Fix if fragment >25–30% of tibial plafond, >2 mm displacement, syndesmotic instability, or posterolateral fragment involving PITFL. CT-based morphology guides approach: posterolateral approach common; direct reduction restores incisura and syndesmotic stability. Sequence: posterior malleolus first to stabilize syndesmosis, then fibula/medial malleolus. Fixation: screws posterior‑to‑anterior or buttress plate via posterolateral approach. Restoring posterior fragment reduces need for trans-syndesm...
Practised by MCQ
10What is the primary indication for fixation of a posterior malleolus fragment?
mcqWhat displacement measurement of the posterior malleolus fragment indicates a need for surgical fixation?
mcqWhy is fixation of the posterior malleolus fragment critical in trimalleolar fractures?
mcqWhat is the most common type of posterior malleolus fracture according to the Bartoníček classification?
mcqWhat approach is typically used for surgical fixation of a posterior malleolus fracture?
mcqWhen is fixation of the posterior malleolus fragment likely to eliminate the need for a trans-syndesmotic scre...
mcqWhat role does the posterior inferior tibiofibular ligament (PITFL) play in relation to the posterior malleolu...
mcqIn the context of posterior malleolus fixation, what is the sequence of fixation that is recommended?
mcqWhat is the significance of restoring the posterior malleolus fragment in terms of syndesmotic stability?
mcqWhat is the potential consequence of not fixing a displaced posterior malleolus fragment?