What question did this study set out to answer?

The aim is to describe the longitudinal course of acetabular dysplasia measures and identify their trajectories.

June 21, 2026Osteoarthritis ImagingOpen Access

Acetabular Dysplasia Trajectories During Growth From 6 to 18 Years

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Randomized trial examines growth trajectories of acetabular measures in youth, indicating risk for hip OA.

The aim is to describe the longitudinal course of acetabular dysplasia measures and identify their trajectories.
Data from the Generation R Study included participants examined at ages 6, 9, 13, and 18 years.
Measured hip morphology using lateral center edge angle and acetabular depth-width ratio through high-resolution DXA.
Latent class growth analysis identified trajectories with participants having at least two measurements.
Both lateral center edge angle and acetabular depth-width ratio increased from ages 6 to 18.
No distinct trajectories were identified for the lateral center edge angle, while two trajectories for acetabular depth-width ratio were found.
At age 18, males in the trajectory with the highest increase had a mean acetabular depth-width ratio of 380.4, while females had 353.4.

Hendriks et al. (2026) studied this question.

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