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Updated: Jul 14, 2026

In Vivo Quantification of Hip Arthrokinematics during Dynamic Weight-bearing Activities using Dual Fluoroscopy
Published on: July 2, 2021
Femoroacetabular impingement: radiographic diagnosis--what the radiologist should know
Moritz Tannast1, Klaus A Siebenrock, Suzanne E Anderson
1Department of Orthopaedic Surgery, Inselspital, University of Bern, Switzerland.
Objective:
The purpose of this article is to show the important radiographic criteria that indicate the two types of femoroacetabular impingement: pincer and cam impingement. In addition, potential pitfalls in pelvic imaging concerning femoroacetabular impingement are shown.
Conclusion:
Femoroacetabular impingement is a major cause for early "primary" osteoarthritis of the hip. It can easily be recognized on conventional radiographs of the pelvis and the proximal femur.
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