The use of radiofrequency (RF) energy has become very popular in human and veterinary
arthroscopic surgery since the late 1990's. Both monopolar and bipolar RF units are
available. Application of RF energy to joint capsular tissue leads to immediate tissue
shrinkage that is both power and temperature dependent. Changes in joint capsular
tissue have been noted at temperatures greater than 65°C. Treatment of articular cartilage
with RF energy leads to immediate chondrocyte damage. This damage is also power and
temperature dependent and is observed at temperatures as low as 45°C. Caution should
be used when applying RF energy within a joint to prevent or minimize articular cartilage
injury.
Keywords
Arthroscopy - radiofrequency - joint capsule - articular cartilage