In the anatomy of the human pelvis, the subpubic region is distinguished, which is formed between the anterior ilium and pubic bones. The area is located between the anterior upper part of the inner surface of the anterior lower limb and the posterior upper part of the interosseous muscles of the thigh. The subpubic angle of the iliofemoral joint is formed between the lower branches of the ischial bones and the sacrum.
The subpubic angle forms a space in the anterior pelvis that lies between the angle of the greater trochanter and the edge of the pubic symphysis. The area of the pelvic region in question is wedge-shaped and occupies up to 190 cm3. This pelvic area is the area of maximum accumulation of body fat reserves, which is important for obstetrics and gynecology (the area is the place of birth in women).
The connection between the pubic and ischial bones is formed by a rectangular-shaped joint called the pubic-ischial joint or pubic symphysis. This docking joint faces anteriorly. It is formed by cartilage tissue. This joint is classified as flat; these joints are very common and provide the ability to tilt the torso, extend and flex the hip with a fixed upper belt. The pubic symphysis is the place where the sacrum and pelvis form, and therefore represents a typical fulcrum.
The size of the pubic angle is characterized by the width of the entry point into the connecting parts and the depth of the tip of the pubic region. When examining an x-ray of the pelvic area, the normal pubic angle is 25-35 degrees. However, this indicator may deviate from the normal ratio to other parameters of the bone pelvis. It can be exceeded or reduced.