Osteitis Pubis is a painful overuse condition that affects the pelvis and most commonly occurs during kicking activities, ice skating and dance. Osteitis Pubis affects an area at the front of the pelvis known as the ‘Pubic Symphysis’. The Pubic Symphysis is a cartilaginous (made from fibrocartilage) joint, that is tightly bound by very strong ligaments. This means that only a limited amount of movement is allowed at this joint.
The progressive modifications that occur in the mouse pubic joint during pregnancy are proposed to result from the cell-type switch of chondrocytes to fibroblasts and the resulting alterations in the composition and histoarchitecture of the ECM. Ultrastructural and immunohistochemical studies suggest that rearrangement of collagen and elastic fibers and changes in proteoglycan and hyaluronan (HA) composition at term are important in PS remodeling [–]. In addition, proteolytic enzymes such as matrix metalloprotease 2 and cathepsin K and B and tissue inhibitors of metalloproteases (TIMP1 and TIMP2) are proposed to contribute to symphysis relaxation [, , –]. There are multiple routes of regulation by which the tensile strength and flexibility of a tissue can be modified. These routes include 1) alterations in processing, assembly, and breakdown of collagen fibrils; 2) the presence or absence of specific matricellular proteins and proteoglycans, which regulate collagen fibril size, deposition in the matrix, and structure; and 3) the type, length, and degree of sulfation of the glycosaminoglycans (GAG) chain on proteoglycans.
who is also an OB/GYN. Amongother things, she mentioned the problem of 'pubic shear', where amisalignment of the pelvis causes one side to be higher than the other,resulting in tension and discomfort in the pubic symphysis joint area. Asearch for 'pubic shear' online brings up this technical definition from anosteopathy website: