Final answer:
The term 'Right on right' in sacroiliac dysfunction refers to a specific misalignment where the right ilium is anteriorly rotated relative to the sacrum, supported by structures such as the posterior and anterior sacroiliac ligaments.
Step-by-step explanation:
Sacroiliac dysfunction 'Right on right' refers to a particular type of misalignment or abnormal movement of the sacroiliac (SI) joint, which is located where the sacrum meets the ilium of the hip bone. This term indicates that the right sacroiliac joint is locked or fixated in such a way that the right ilium is rotated anteriorly (forward) relative to the sacrum. This condition can cause pain and reduced mobility. The SI joint is supported by strong ligaments, such as the posterior sacroiliac ligament and the anterior sacroiliac ligament. The stability provided by these ligaments is crucial for proper joint function and movement. In addition to understanding the sacroiliac joint, it is important to recognize other proximal joints such as the proximal radioulnar joint and the proximal tibiofibular joint, which allow for articulation and movement in different parts of the body.