R. B. Edwards, Y. Lu, B. J. Cole, P. Muir, M. D. Markel

Veterinary and Comparative Orthopaedics and Traumatology 2008 21 1: 41-48 

Objective: To compare a radiofrequency energy (RFE) prototype probe to mechanical debridement (MD) and a commercially available RFE system used for chondroplasty in the treatment of an experimentally created partial thickness cartilage lesion in horses.

The study design was experimental, randomized complete block, n=8, using fifteen mature ponies.

Methods: Grade 2 to 3 cartilage lesions were prepared in both patellae. After 10 months duration, the injuries were used to study the effects of MD, a commercially available bipolar RFE device (CoVac 50; ArthroCare Corporation) and a prototype monopolar RFE device (Smith & Nephew Endoscopy). Six months after treatment the patellae were examined for chondrocyte viability and cartilage structure.

Results: Mean depth of cell death was significantly different among groups