IROP Test

The Internal Rotation Over Pressure (IROP) Test is used clinically to assess intra-articular hip pain, particularly in femoroacetabular impingement syndrome (FAIS) and labral lesions (Wong et al., 2022). It is part of the same family of tests as the FADIR, with a more pronounced stress on internal rotation, making it possible to reproduce pain that is difficult to trigger with conventional tests.