What Are Articular Surfaces?

Articular surfaces are the contact surfaces of the related bones that make up the joint. Generally, a convex and a concave adapt to each other, the convex is called the joint head, and the concave is called the joint socket.

Articular surfaces are the contact surfaces of the related bones that make up the joint. Generally, a convex and a concave adapt to each other, the convex is called the joint head, and the concave is called the joint socket.

Chinese name

Articular surface

Convex

Joint head

Concave

Articular fossa

Features

Smooth and resilient

Function

Reduce friction during exercise

Location

Articular bone contact surface

Articular surface concept

The articular cartilage is composed of articular cartilage, which is mostly composed of transparent cartilage, which can make the rough and uneven articular surface smooth, reduce friction on the articular surface, and cushion shock and shock.

Applied Anatomy Observation of Chinese Knee Articular Surface

The correct specifications of knee prostheses (ie, morphological dimensions) are of great significance for the successful replacement and long-term survival of artificial total knee joints. Due to the large morphological differences between different races, commercial prostheses may not have prosthetic components that fit the specifications of Chinese people, so the morphological parameters of Chinese knee joints were observed in this article. In the past 20 years, domestic and foreign scholars have mostly used X-rays to measure knee joints, and perform knee morphological analysis and prosthesis design based on the obtained data. Since the X-ray film is only a two-dimensional projection map, it cannot accurately reflect the complex anatomical position relationship of the projected structure, so the measured data will affect the accuracy of the prosthesis design. Some scholars use CT to make morphological measurements of the distal femoral joints, but the knee joints they measure lack typicality and representativeness. Due to the tight source of the corpse's knee joint, few people in China have directly measured the corpse's knee joint. In this paper, morphological observations were performed on the knee joints of 80 cadaver corpses. Due to differences in observational races, observation points, and methods, some of the data obtained are far from others' results. Which of the final results is more representative remains to be determined. Since the development of the artificial knee joint for more than 20 years, its main shape and design direction have not changed significantly. In recent years, the artificial knee joints introduced by various manufacturers have been repeatedly updated and have matured, but they still need to be improved in terms of matching. In clinical use, the principle of "ning da wu xiao" is used to reconstruct the knee joint. Therefore, manufacturers are now working hard to provide more sizes, or different size ratios to get the maximum osteotomy coverage. The majority of patients undergoing artificial knee arthroplasty are patients with osteoarthritis or rheumatoid arthritis. The joint morphology of these patients has changed, and the morphology of normal knee joints is significantly different. On-site X-ray or CT examination is based on the observation results based on the disease. Selecting a prosthesis based on this is no different from "treating with disease", so it is particularly necessary to observe the normal shape of the knee joint. in accordance with.