| 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. |
|||||||||
Comparative Orthopaedic Research Laboratory, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin
Comparative Orthopaedic Research Laboratory, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin
Sports, Orthopedic and Rehabilitation Medicine Associates, Portola Valley, California
Comparative Orthopaedic Research Laboratory, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin
Comparative Orthopaedic Research Laboratory, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin
To evaluate the effect of laser energy at nonablative levels on the mechanical properties of joint capsular tissues, we tested the femoropatellar joint capsules of 12 mature New Zealand White rabbits. Specimens were divided into three treatment groups (5, 10, and 15 watts) and one control group. All specimens were first non- destructively mechanically tested to determine stiffness and viscoelastic properties and then treated with laser energy or served as a control. Shrinkage was recorded and mechanical testing was repeated. The application of laser energy resulted in 9%, 26%, and 38% reduction in capsular tissue length for the 5, 10, and 15 watt groups, respectively. Tissue shrinkage was significantly and strongly correlated with energy density. Laser en ergy caused a significant decrease in tensile stiffness only in the 10 and 15 watt groups. Laser energy did not change the relaxation properties at any energy density. This study demonstrates that significant capsular shrinkage can be achieved with the application of non ablative laser energy without detrimental effects to the viscoelastic properties of the tissue; although at higher energy densities, laser energy did lessen capsular stiffness properties. The results of this study should be interpreted with caution until in vivo studies are performed.
This article has been cited by other articles:
|
|
 |
|
  M. J. DeFranco and B. R. Bach Jr. A Comprehensive Review of Partial Anterior Cruciate Ligament Tears J. Bone Joint Surg. Am., January 1, 2009; 91(1): 198 - 208. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 A. Miniaci and M. J. Codsi Thermal Capsulorrhaphy for the Treatment of Shoulder Instability Am. J. Sports Med., August 1, 2006; 34(8): 1356 - 1363. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
A. Aneja, S. G. Karas, P. S. Weinhold, H. M. Afshari, and L. E. Dahners Suture Plication, Thermal Shrinkage, and Sclerosing Agents: Effects on Rat Patellar Tendon Length and Biomechanical Strength Am. J. Sports Med., November 1, 2005; 33(11): 1729 - 1734. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
W. P. Silver, R. A. Creighton, I. K. Triantafillopoulos, A. C. Devkota, P. S. Weinhold, and S. G. Karas Thermal Microdebridement Does Not Affect the Time Zero Biomechanical Properties of Human Patellar Tendons Am. J. Sports Med., December 1, 2004; 32(8): 1946 - 1952. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
W. Potzl, T. Heusner, P. Kumpers, B. Marquardt, and J. Steinbeck Does Immobilization After Radiofrequency-Induced Shrinkage Influence the Biomechanical Properties of Collagenous Tissue?: An In Vivo Rabbit Study Am. J. Sports Med., April 1, 2004; 32(3): 681 - 687. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
E. G. McFarland, T. K. Kim, H. B. Park, C. A. Neira, and M. I. Gutierrez The Effect of Variation in Definition on the Diagnosis of Multidirectional Instability of the Shoulder J. Bone Joint Surg. Am., November 1, 2003; 85(11): 2138 - 2144. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
C. Gerber, C. M.L. Werner, J. C. Macy, H. A.C. Jacob, and R. W. Nyffeler Effect of Selective Capsulorrhaphy on the Passive Range of Motion of the Glenohumeral Joint J. Bone Joint Surg. Am., January 17, 2003; 85(1): 48 - 55. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
T. A. Joseph, J. S. Williams Jr, and J. J. Brems Laser Capsulorrhaphy for Multidirectional Instability of the Shoulder: An Outcomes Study and Proposed Classification System Am. J. Sports Med., January 1, 2003; 31(1): 26 - 35. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
W. Potzl, K.-A. Witt, L. Hackenberg, T. Heusner, and J. Steinbeck Influence of Postoperative Immobilization on Tendon Length After Radiofrequency-Induced Shrinkage: An In Vivo Rabbit Study Am. J. Sports Med., January 1, 2003; 31(1): 36 - 40. [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]
|
|
|
|
|
|
T. R. Carter, D. S. Bailie, and S. Edinger Radiofrequency Electrothermal Shrinkage of the Anterior Cruciate Ligament Am. J. Sports Med., March 1, 2002; 30(2): 221 - 226. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
A. L. Wallace, R. M. Hollinshead, and C. B. Frank Creep Behavior of a Rabbit Model of Ligament Laxity after Electrothermal Shrinkage In Vivo Am. J. Sports Med., January 1, 2002; 30(1): 98 - 102. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. K. Sekiya, G. J. Golladay, and E. M. Wojtys Autodigestion of a Hamstring Anterior Cruciate Ligament Autograft Following Thermal Shrinkage : A Case Report and Sentinel of Concern J. Bone Joint Surg. Am., October 1, 2000; 82(10): 1454 - 1454. [Full Text] [PDF]
|
|
|
|
 |
|
 S. P. Arnoczky and A. Aksan Thermal Modification of Connective Tissues: Basic Science Considerations and Clinical Implications J. Am. Acad. Ortho. Surg., September 1, 2000; 8(5): 305 - 313. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
P. Hecht, K. Hayashi, Y. Lu, G. S. Fanton, G. Thabit III, R. Vanderby Jr, and M. D. Markel Monopolar Radiofrequency Energy Effects on Joint Capsular Tissue: Potential Treatment for Joint Instability: An In Vivo Mechanical, Morphological, and Biochemical Study Using an Ovine Model Am. J. Sports Med., November 1, 1999; 27(6): 761 - 771. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
K. Hayashi, K. L. Massa, G. Thabit III, G. S. Fanton, M. F. Dillingham, K. W. Gilchrist, and M. D. Markel Histologic Evaluation of the Glenohumeral Joint Capsule After the Laser-Assisted Capsular Shift Procedure for Glenohumeral Instability Am. J. Sports Med., March 1, 1999; 27(2): 162 - 167. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
P. Hecht, K. Hayashi, A. J. Cooley, Y. Lu, G. S. Fanton, G. Thabit III, and M. D. Markel The Thermal Effect of Monopolar Radiofrequency Energy on the Properties of Joint Capsule: An In Vivo Histologic Study Using a Sheep Model Am. J. Sports Med., November 1, 1998; 26(6): 808 - 814. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
J. E. Tibone, P. J. McMahon, T. A. Shrader, M. D. Sandusky, and T. Q. Lee Glenohumeral Joint Translation after Arthroscopic, Nonablative, Thermal Capsuloplasty with a Laser Am. J. Sports Med., July 1, 1998; 26(4): 495 - 498. [Abstract] [Full Text] [PDF]
|
|
|
|
|
|
S. L. Schaefer, M. J. Ciarelli, S. P. Arnoczky, and H. E. Ross Tissue Shrinkage With the Holmium:Yttrium Aluminum Garnet Laser: A Postoperative Assessment of Tissue Length, Stiffness, and Structure Am. J. Sports Med., December 1, 1997; 25(6): 841 - 848. [Abstract] [PDF]
|
|
|
|
|
|
G. S. Naseef, T. E. Foster, K. Trauner, S. Solhpour, R. R. Anderson, and B. Zarins The Thermal Properties of Bovine Joint Capsule: The Basic Science of Laser- and Radiofrequency-Induced Capsular Shrinkage Am. J. Sports Med., September 1, 1997; 25(5): 670 - 674. [Abstract] [PDF]
|
|
|
|
 |
|
 B. W. Rubach and L. D. Schoenrock Histological and Clinical Evaluation of Facial Resurfacing Using a Carbon Dioxide Laser With the Computer Pattern Generator Arch Otolaryngol Head Neck Surg, September 1, 1997; 123(9): 929 - 934. [Abstract] [PDF]
|
|
|
|
|
|
K. Hayashi, G. Thabit III, K. L. Massa, J. J. Bogdanske, A.J. Cooley, J. F. Orwin, and M. D. Markel The Effect of Thermal Heating on the Length and Histologic Properties of the Glenohumeral Joint Capsule Am. J. Sports Med., January 1, 1997; 25(1): 107 - 112. [Abstract] [PDF]
|
|
|
|
|
|
K. Hayashi, G. Thabit III, A. C. Vailas, J. J. Bogdanske, A.J. Cooley, and M. D. Markel The Effect of Nonablative Laser Energy on Joint Capsular Properties: An In Vitro Histologic and Biochemical Study Using a Rabbit Model Am. J. Sports Med., September 1, 1996; 24(5): 640 - 646. [Abstract] [PDF]
|
|
| HOME | HELP | CONTACT US | SUBSCRIPTIONS | ARCHIVE | SEARCH | TABLE OF CONTENTS |
