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Relationship between crossover sign and anterior center-edge angle
Robert A Christian1, Michael H McCarthy1, Bennet A Butler1
1aDepartment of Orthopaedic Surgery, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
Journal of Orthopaedics
|April 24, 2019
Summary
This study found a moderate correlation between hip joint measurements, specifically the crossover ratio and the anterior (ACEA) and lateral (LCEA) center-edge angles. These findings are relevant for understanding hip morphology and potential issues.
Area of Science:
- Orthopedic surgery
- Radiology
- Hip biomechanics
Background:
- Hip pain evaluation often involves radiographic assessment of femoral head coverage.
- Angles like the anterior center-edge angle (ACEA) and lateral center-edge angle (LCEA) are crucial for diagnosing hip conditions.
- The crossover ratio is another metric used in hip imaging analysis.
Purpose of the Study:
- To investigate the relationship between the crossover ratio and two key hip joint angles: the anterior center-edge angle (ACEA) and the lateral center-edge angle (LCEA).
Main Methods:
- A retrospective review of consecutive patients presenting with hip pain.
- Radiographic measurements including crossover ratio, LCEA, ACEA, and alpha-angle were analyzed.
- Statistical analysis was performed to determine correlations between the measured parameters.
Main Results:
- Sixty-eight patients met the inclusion criteria for the study.
- The alpha-angle was the only measurement showing statistical significance when stratified by gender (P < 0.001).
- A moderate negative correlation was observed between the crossover ratio and both ACEA (r = -0.48) and LCEA (r = -0.48).
Conclusions:
- A correlation exists between the crossover ratio and the anterior center-edge angle (ACEA) and lateral center-edge angle (LCEA).
- These findings contribute to the understanding of hip joint morphology and radiographic assessment.
- Further research may explore the clinical implications of these correlations in hip pain evaluation.
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