Research progress on the relationship between pelvic incidence and hip disorders
10.3760/cma.j.cn121113-20210725-00478
- VernacularTitle:骨盆投射角与髋关节疾病关系的研究进展
- Author:
Hongxun ZHU
1
;
Peng ZHANG
;
Biaofang WEI
Author Information
1. 山东省临沂市人民医院骨科，临沂 276005
- From:
Chinese Journal of Orthopaedics
2022;42(14):920-927
- CountryChina
- Language:Chinese
-
Abstract:
The pelvic incidence (PI) is a key anatomical parameter for vertebral-pelvic sagittal plane stabilization, that is, the angle between the perpendicular to the sacral plate at its midpoint and the line connecting this point to the middle axis of the femoral head, which fully reflects the compensatory ability of the pelvis and it does not change with age, gender and position, but is closely related to race. The measurement result of PI varies with the measurement method. The measurement on the standing lumbosacral lateral radiographs is a classic measurement method, which is easy to operate and has strong practicability. Later, the improved three-dimensional CT measurement and measurement methods on bone specimens are based on this, which reduces the error in X-ray measurement. Early research focused on PI and spine-related diseases. Compared with normal people, a small PI value is likely to cause intervertebral disc degeneration or even herniation, a high PI can cause lumbar spondylolisthesis. The measurement of PI can predict the risk of disc degeneration and lumbar spondylolisthesis progression, providing an important reference for spinal sagittal orthopedic reconstruction. The influence of PI in hip joint diseases cannot be ignored. PI also has a predictive effect on the development of certain hip joint diseases, and has guiding significance for the treatment of diseases. The relationship between PI and hip osteoarthritis, hip dysplasia, femur acetabular impingement, and non-traumatic necrosis of the femoral head was reviewed through literature review. The results showed that the relationship between hip osteoarthritis and PI was still controversial. The higher pelvic incidence was observed in Crowe I patients with hip dysplasia, and the lower PI was observed in patients with femur acetabular impingement. The higher PI was associated with a greater likelihood of femoral head collapse in patients with non-traumatic necrosis of the femoral head.
