4/26/2023 0 Comments Osirix md for mac free downloadAnatomic differences of the knee between the genders has raised associated implications and the need for a gender specific knee prosthesis 14. Several studies have shown that for a fixed anteroposterior length of distal femur, women have narrower mediolateral widths compared to men 13, 14, 16, 17. Most of these studies report significant differences in the aspect ratio between the population groups and between the sexes. Several investigators have studied the anthropometry of knee using varied techniques (CT, MRI, cadaveric dissection and intraoperative) and in diverse ethnic groups such as the Caucasian, Thai, Chinese, Japanese, Indian, Brazilian, and Korean population 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15. The most important factor that determines sizing of the knee implant is the aspect ratio of distal femur and proximal tibia. Success of TKA depends to a large extent on prostheses selection, accurate sizing and proper placement of the components 3. Total knee arthroplasty (TKA) is a very complex procedure done to alleviate pain and improve knee joint function in patients with osteoarthritis 1, 2. Emirati knees showed significant gender differences in bony dimensions and aspect ratio of the knee, and also have smaller aspect ratios when compared with most other population groups. However, aspect ratio of proximal tibia did not show gender variation (p = 0.956) within the Emirati population. Proximal tibial dimensions (AP and ML) of Emirati women are also significantly smaller compared to men. Females showed significantly smaller AP and ML dimensions of distal femur and lower aspect ratios compared to males (p < 0.001). Knee parameters were obtained from 65 males and 46 females (n = 111). Magnetic resonance imaging datasets of unilateral knees scans performed on adult Emirati patients at a tertiary care hospital were retrospectively examined. The purpose of this study was to estimate the aspect ratio of distal femur and proximal tibia in the Emirati population and determine whether gender differences exist within this group. Ill-fitting prosthesis can cause overhang or under-fit resulting in persistence of pain, periprosthetic fracture and decreased range of motion. Several studies have identified anthropometric differences of the distal femur and proximal tibia between the genders and ethnicities. Size and shape of knee implants play an important role in the success of total knee arthroplasty.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |