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Posterior malleolus fracture.
Todd A Irwin1, John Lien, Anish R Kadakia
1Department of Orthopaedic Surgery, Division of Foot and Ankle Surgery, University of Michigan, Ann Arbor, MI, USA.
The Journal of the American Academy of Orthopaedic Surgeons
|January 3, 2013
Summary
Posterior malleolus fractures are common in ankle injuries and impact outcomes. Current guidelines for fixation are unclear, leading to varied surgical practices and affecting patient prognosis.
Area of Science:
- Orthopedic Surgery
- Traumatology
- Anatomy
Background:
- Posterior malleolus fractures are a frequent component of ankle fractures, exhibiting diverse morphologies.
- The posterior malleolus is crucial for tibiotalar load transfer, posterior talar stability, and rotatory ankle stability.
Purpose of the Study:
- To review the current indications for fixation of posterior malleolus fractures in rotational ankle injuries.
- To highlight the impact of posterior malleolus fractures on ankle fracture prognosis and surgical practice variability.
Main Methods:
- Literature review of studies on posterior malleolus fractures and ankle injuries.
- Analysis of factors influencing fixation decisions, including fragment size, impaction, comminution, and syndesmotic stability.
Main Results:
- Posterior malleolus fractures negatively affect prognosis in ankle fracture patients.
- Fragment size is a common but not sole indicator for fixation; other factors like articular impaction and syndesmotic stability are also considered.
- Significant variability exists in surgical practices regarding posterior malleolus fracture fixation.
Conclusions:
- The integrity of the posterior malleolus is vital for ankle stability and proper load transfer.
- Clearer indications for posterior malleolus fracture fixation are needed to standardize treatment and improve patient outcomes.
- Further research is warranted to optimize surgical decision-making for these fractures.
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