Dunn View Alpha Angle More Useful Than Femoral Head-Neck Offset to Predict Acetabular Cartilage Damage in Patients With Femoroacetabular Impingement Syndrome Undergoing Hip Arthroscopy
Authors
Shapira J, Owens JS, Jimenez AE, Maldonado DR, Rosinsky PJ, Ankem HK, Peskin B, Lall AC, Domb BG
DOI: 10.1016/j.arthro.2021.08.039
Background
The study focuses on identifying the best predictors for acetabular cartilage damage in patients with femoroacetabular impingement syndrome (FAIS) undergoing hip arthroscopy.
Methods
The study compared radiographic measurements, specifically the Dunn view alpha angle and femoral head-neck offset, to determine their predictive power for cartilage damage in FAIS patients.
Key Findings
The Dunn view alpha angle was a better predictor of acetabular cartilage damage than the femoral head-neck offset. Higher alpha angles correlated with more severe cartilage damage.
Conclusions
The Dunn view alpha angle is a more reliable predictor of acetabular cartilage damage in FAIS patients than the femoral head-neck offset.
What Does This Mean for Patients
If you have FAIS, the Dunn view alpha angle on your X-rays may help doctors predict the severity of cartilage damage in your hip, which could influence treatment decisions.