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Gravity versus manual external rotation stress view in evaluating ankle stability: a prospective study
Thu-Ba LeBa1, Zbigniew Gugala2, Randal P Morris1
1Department of Orthopaedic Surgery and Rehabilitation, The University of Texas Medical Branch, Galveston, Texas.
Foot & Ankle Specialist
|January 2, 2015
Summary
Gravity stress views are as effective as manual external rotation stress views for detecting medial clear space widening in ankle fractures. This finding aids in diagnosing fibular fractures with comparable accuracy.
Area of Science:
- Orthopedic Surgery
- Radiology
- Diagnostic Imaging
Background:
- Medial clear space widening is a key indicator in diagnosing ankle fractures.
- Accurate detection is crucial for appropriate treatment and patient outcomes.
Purpose of the Study:
- To compare the efficacy of gravity stress views versus manual external rotation stress testing in identifying medial clear space widening.
- To evaluate diagnostic accuracy in isolated ankle fractures.
Main Methods:
- Prospective comparative trial involving 20 consecutive patients with ankle injuries.
- Performed both gravity stress and manual external rotation stress tests on injured and contralateral uninjured ankles.
- Measured and compared medial clear space widening between the two stress methods.
Main Results:
- Gravity stress views demonstrated a statistically significant increase in medial clear space widening (1.85 ± 1.07 mm) compared to manual stress views (1.35 ± 1.04 mm).
- The difference in widening between gravity and manual stress was statistically significant (P = .017).
Conclusions:
- Gravity stress views are as effective as manual external rotation stress views for detecting medial clear space widening in isolated fibular fractures.
- Gravity stress may offer a comparable or potentially more sensitive method for this specific diagnostic scenario.
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