Comparison of mechanical debridement and radiofrequency energy for chondroplasty in an in vivo equine model of partial thickness cartilage injury.
- Journal Article
- Research Support
- Non-U.S. Gov't
Summary
This research paper conducted an in-depth study to evaluate and compare the effects of mechanical debridement and radiofrequency energy (RFE) as treatments for partial thickness cartilage injury. It discovered that while RFE caused greater cell death and more severe morphological changes in cartilage, it retained the matrix structure and the treated cartilage’s mechanical properties were comparable to the mechanical debridement method.
Study’s Methodology
- The experiment was conducted on 16 mature ponies wherein partial thickness fibrillation of patellar cartilage was artificially created.
- Three months post the initial surgery, the injured patellae from these ponies were randomly assigned any one of the four treatments – no treatment (control), mechanical debridement with a motorized shaver (removal of damaged tissue with a minor surgical procedure), and two types of Radiofrequency Energy (RFE) probes.
- The ponies were euthanized 22 months after the treatment, for analysis.
- Macroscopic appearance of the treated cartilage, chondrocyte (cartilage cells) viability, morphometric changes in the cartilage (physical changes to the size, shape, etc.) and mechanical properties were analyzed and compared to the normal uninjured cartilage.
Results of the Study
- The macroscopic appearance of the treated cartilage showed no significant differences across all treatment groups.
- The RFE treated groups exhibited a significantly greater depth of cell death and percentage of dead area compared to both control and mechanical debridement groups.
- However, no significant differences were observed in maximum depth and the percentage of dead area between the two RFE treatment groups.
- From a histologic perspective, untreated and mechanically debrided cartilage showed better morphology compared to the RFE groups.
- Despite the observed full thickness chondrocyte death in the RFE treated samples, the matrix in these sections were still intact. The mechanical properties of the treated cartilage did not significantly deviate from the group treated with mechanical debridement.
Conclusions from the Research
The research concluded that Radiofrequency Energy treatment resulted in more chondrocyte death and led to more severe morphological changes compared to degenerative cartilage left untreated or treated with mechanical debridement. Yet, it was noted that the retained matrix and comparable mechanical properties may offer a potential benefit in treating such cartilage injuries.
Cite This Article
Publication
Researcher Affiliations
- Comparative Orthopaedic Research Laboratory, Department of Surgical Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI 53706-1102, USA.
MeSH Terms
- Animals
- Arthroscopy / methods
- Cartilage Diseases / surgery
- Cartilage, Articular / metabolism
- Cartilage, Articular / surgery
- Horses
- Radiofrequency Therapy
- Random Allocation
Citations
This article has been cited 10 times.- Sun D, Liu X, Xu L, Meng Y, Kang H, Li Z. Advances in the Treatment of Partial-Thickness Cartilage Defect. Int J Nanomedicine 2022;17:6275-6287.
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