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Assessment of Bone Fracture Healing Using Micro-Computed Tomography
Published on: December 9, 2022
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Supination External Rotational Ankle Fracture Injury Pattern Correlation With Regional Bone Density
Stephen J Warner1, Elizabeth B Gausden2, Ashley E Levack2
11 Orthopaedic Trauma Service, University of Texas Health Science Center at Houston, Houston, TX, USA.
Foot & Ankle International
|December 23, 2018
Summary
Higher regional bone density in rotational ankle fractures correlates with fewer malleolar fractures. Trimalleolar fractures indicate poor bone quality, potentially signaling abnormal bone metabolism.
Area of Science:
- Orthopedic surgery
- Radiology
- Bone metabolism
Background:
- Rotational ankle fractures exhibit diverse injury patterns.
- Factors influencing these varied injury patterns remain unclear.
- Understanding these factors is crucial for accurate diagnosis and treatment.
Purpose of the Study:
- To investigate causative factors behind different rotational ankle fracture patterns.
- To determine if patient and injury factors correlate with specific fracture presentations.
Main Methods:
- Analysis of a registry of supination external rotation stage IV (SER IV) ankle fractures.
- Computed tomography (CT) used to measure regional bone density (Hounsfield units).
- Patients categorized into groups based on malleolar fracture involvement (none, single, or both).
Main Results:
- Significantly higher bone density in patients without malleolar fractures compared to those with bimalleolar or trimalleolar fractures.
- Bone density predicted the presence of medial and posterior malleolar fractures.
- Trimalleolar fractures were associated with the lowest bone density.
Conclusions:
- Regional bone density correlates with the extent of malleolar fractures in SER IV ankle injuries.
- Bone density assessment can help anticipate bone quality during surgical fixation.
- Trimalleolar fractures may indicate underlying poor bone quality or metabolic bone disease.
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