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Is there a relationship between psoas impingement and increased trochanteric retroversion?
Juan Gómez-Hoyos1, Ricardo Schröder2, Manoj Reddy3
11. Hip Preservation Center, Baylor University Medical Center, Dallas, USA; 2. Department of Orthopaedic Surgery, University of Antioquia, Medellin, Colombia, USA.
Psoas impingement is linked to increased lesser trochanteric retroversion in symptomatic hips. This finding helps differentiate psoas impingement from asymptomatic cases using imaging analysis.
Area of Science:
- Orthopedic Surgery
- Radiology
- Sports Medicine
Background:
- Psoas impingement, caused by iliopsoas tendon issues, may lead to anterior labral impingement during hip extension.
- Understanding the anatomical variations associated with psoas impingement is crucial for diagnosis and treatment.
Purpose of the Study:
- To investigate the relationship between lesser trochanteric version (LTV) and psoas impingement.
- To compare LTV in patients with symptomatic psoas impingement against asymptomatic hips.
Main Methods:
- Retrospective analysis of axial magnetic resonance imaging (MRI) scans.
- Evaluation of femoral neck version (FNV) and LTV, and the angle between them.
- Comparison of measurements between 12 symptomatic and 250 asymptomatic hips using independent t-tests.
Main Results:
- Significantly increased lesser trochanteric retroversion in symptomatic psoas impingement patients (-31.1° ± 6.5°) compared to asymptomatic hips (-24.2° ± 11.5°, P < 0.05).
- No significant differences were found in femoral neck version (FNV) or the angle between FNV and LTV between the groups.
Conclusions:
- Increased lesser trochanteric retroversion is a significant indicator in patients with psoas impingement.
- This anatomical finding may aid in the radiological diagnosis of psoas impingement syndrome.
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