| HOME | HELP | CONTACT US | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
Sign In to gain access to subscriptions and/or personal tools.
|
|
|
|||||||
Sign In to gain access to subscriptions and/or personal tools. |
|||||||||
,
University of Southern California, School of Medicine, Los Angeles,
Kerlan-Jobe Orthopaedic Clinic, Los Angeles, California
Presented at the interim meeting of the AOSSM, Orlando, Florida, February 2000.
Address correspondence and reprint requests to Frank G. Shellock, PhD, 7511 McConnell Avenue, Los Angeles, CA 90045
Radiofrequency energy is used for thermal-assisted chondroplasty to treat grade II and III chondromalacia with the lowest possible energy setting that achieves the desired result. The purpose of this in vitro study was to determine the temperature changes associated with the use of radiofrequency energy delivered at different settings to bovine articular cartilage using a bipolar electrode. Cartilage samples were placed in a temperature-controlled (37°C) saline bath for the delivery of radiofrequency energy. A fluoroptic thermometry probe was positioned to record the temperatures at the electrode-tissue interface. The electrode was activated for 2 seconds at settings of V2-120, V2-60, V2-40, and V2-20 in two modes: ablation and desiccation. Additionally, the cartilage samples were visually inspected to determine changes in appearance. The highest average temperatures were as follows: ablation mode, 78.5°C (V2-120), 62.6°C (V2-60), 58.1°C (V2-40), and 54.1°C (V2-20); desiccation mode, 71.8°C (V2-120), 61.4°C (V2-60), 57.7°C (V2-40), and 53.3°C (V2-20). There were statistically significant increases in temperatures associated with each of the respective settings. There were no substantial visual changes produced by the V2-20 settings, while the other settings produced a gradation of effects. These data provide information to help guide the use of a bipolar radiofrequency electrode and electrosurgical system for thermal-assisted chondroplasty.
This article has been cited by other articles:
|
|
 |
|
  I. Voloshin, K. R. Morse, C. D. Allred, S. A. Bissell, M. D. Maloney, and K. E. DeHaven Arthroscopic Evaluation of Radiofrequency Chondroplasty of the Knee Am. J. Sports Med., October 1, 2007; 35(10): 1702 - 1707. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
L. D. Kaplan, D. Ionescu, J. M. Ernsthausen, J. P. Bradley, F. H. Fu, and D. L. Farkas Temperature Requirements for Altering the Morphology of Osteoarthritic and Nonarthritic Articular Cartilage: In Vitro Thermal Alteration of Articular Cartilage Am. J. Sports Med., April 1, 2004; 32(3): 688 - 692. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
C. R. Chu, L. D. Kaplan, F. H. Fu, L. S. Crossett, and R. K. Studer Recovery of Articular Cartilage Metabolism Following Thermal Stress Is Facilitated by IGF-1 and JNK Inhibitor Am. J. Sports Med., January 1, 2004; 32(1): 191 - 196. [Abstract] [Full Text]
|
|
|
|
|
|
A. Ryan, A. L. Bertone, C. C. Kaeding, K. C. Backstrom, and S. E. Weisbrode The Effects of Radiofrequency Energy Treatment on Chondrocytes and Matrix of Fibrillated Articular Cartilage Am. J. Sports Med., May 1, 2003; 31(3): 386 - 391. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
L. D. Kaplan, C. R. Chu, J. P. Bradley, F. H. Fu, and R. K. Studer Recovery of Chondrocyte Metabolic Activity after Thermal Exposure Am. J. Sports Med., May 1, 2003; 31(3): 392 - 398. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
Y. Lu, R. B. Edwards III, S. Nho, B. J. Cole, and M. D. Markel Lavage Solution Temperature Influences Depth of Chondrocyte Death and Surface Contouring During Thermal Chondroplasty with Temperature-Controlled Monopolar Radiofrequency Energy Am. J. Sports Med., September 1, 2002; 30(5): 667 - 673. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 H. H. Sherk, C. T. Vangsness, G. Thabit III, and R. W. Jackson Electromagnetic Surgical Devices in Orthopaedics : Lasers and Radiofrequency J. Bone Joint Surg. Am., April 1, 2002; 84(4): 675 - 681. [Full Text] [PDF]
|
|
| HOME | HELP | CONTACT US | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
