College of Medicine, Mohammed Bin Rashid University of Medicine and Health Sciences, Dubai, UAE.
Mediclinic City Hospital, Dubai Healthcare City, Dubai, UAE.
Sci Rep. 2023 Mar 18;13(1):4489. doi: 10.1038/s41598-023-31715-4.
Size and shape of knee implants play an important role in the success of total knee arthroplasty. Several studies have identified anthropometric differences of the distal femur and proximal tibia between the genders and ethnicities. Ill-fitting prosthesis can cause overhang or under-fit resulting in persistence of pain, periprosthetic fracture and decreased range of motion. 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. Magnetic resonance imaging datasets of unilateral knees scans performed on adult Emirati patients at a tertiary care hospital were retrospectively examined. Knee parameters were obtained from 65 males and 46 females (n = 111). Females showed significantly smaller AP and ML dimensions of distal femur and lower aspect ratios compared to males (p < 0.001). Proximal tibial dimensions (AP and ML) of Emirati women are also significantly smaller compared to men. However, aspect ratio of proximal tibia did not show gender variation (p = 0.956) within the Emirati population. 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.
膝关节假体的大小和形状在全膝关节置换术的成功中起着重要作用。有几项研究已经确定了性别和种族之间的股骨远端和胫骨近端的人体测量学差异。不合适的假体可能会导致覆盖或不匹配，导致疼痛持续存在、假体周围骨折和活动范围减小。本研究旨在估计阿联酋人群中股骨远端和胫骨近端的纵横比，并确定该人群中是否存在性别差异。回顾性分析了一家三级保健医院对成年阿联酋患者单侧膝关节进行的磁共振成像数据集。从 65 名男性和 46 名女性（n=111）中获得了膝关节参数。女性的股骨远端 AP 和 ML 尺寸以及纵横比明显小于男性（p<0.001）。与男性相比，阿联酋女性的胫骨近端尺寸（AP 和 ML）也明显较小。然而，在阿联酋人群中，胫骨近端的纵横比没有表现出性别差异（p=0.956）。阿联酋膝关节在骨骼尺寸和膝关节纵横比方面存在显著的性别差异，与大多数其他人群相比，其纵横比也较小。
