Background: Radiofrequency probes have been used extensively in various arthroscopic procedures. Measurable cartilage damage occurs after radiofrequency probe application. However, the histological changes of cartilage damage following radiofrequency chondroplasty have not been extensively studied.
Materials & Methods: Articular cartilage specimens were obtained from patients undergoing total knee replacement surgeries. Radiofrequency probes were applied at 1, 3 and 5 seconds and samples were sent to histopathology laboratory. The histological changes of cartilage damage were analyzed using the International Cartilage Repair Society (ICRS) assessment scale. Safranin O staining was done to assess the proteoglycan content.
Results: Histologically measurable articular cartilage damage occurs after radiofrequency probes
Conclusions: The time of application of radiofrequency probes should be optimized so as to minimize cartilage damage.
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