1. The gap or cavity between the bones of a joint, typically filled with synovial fluid
The X-ray revealed a narrowing of the joint space in the knee
A radiografia revelou um estreitamento do espaço articular no joelho
2. In anatomy and orthopedics, the anatomical space within an articulation where movement occurs
Loss of joint space is a sign of arthritis progression
A perda do espaço articular é um sinal de progressão da artrite