Probing the joint
During a diagnostic arthroscopy a blunt-ended probe is generally used to feel the joint surfaces, examine the menisci and feel for the integrity of the cruciate ligaments.
The arthroscope has an integral light source and camera. A second portal allows input of water under pressure, while a third portal allows an instrument such as a probe. Photographs can be taken through the camera inside the joint. Here is a normal meniscus seated on the tibia bone, with a rounded normal femoral condyle above it.
