Orthopaedic Research
By stimulating and sponsoring appropriate orthopaedic research we initiate the development of new ideas and approaches to sports medicine. Recent structural changes in the U.S. medical system are forcing physicians and hospitals to strive to identify the most effective treatment pathways and offer these treatments to their patients, rather than allow managed care to dictate the decision making process. This can be accomplished through research efforts designed to explore and enhance the quality and efficiency of the care provided and to validate the need for certain treatment pathways for special populations, such as those sustaining sports injuries. Our ongoing research projects are changing how orthopaedic care is delivered throughout the world.
Accolades
Congratulations to Dr. Tom Pevny for his recent poster presentation at the AANA annual meeting this past May in Hollywood, FL entitled “Comparison of Four Femoral Tunnel Drilling Techniques in Anterior Cruciate Ligament Reconstruction”. This paper is also being reviewed by The Journal of Arthroscopy.
Congratulations to MARS surgeons Dr. Mark Purnell and Dr. Lindsay Harris. The manuscript entitled “Descriptive Epidemiology of the Multi-Center ACL Revision Study (MARS) Cohort” has been accepted for publication by AJSM.
Ongoing Research
Effects of a Femoral Nerve Block On Pain Management After Intramedullary Tibial Nailing
The purpose of this study is to evaluate FNB as a supplement to the standard pain protocol for postoperative pain control. Our hypothesis is that a preemptive FNB will improve pain control and decrease the total opioid usage for patients undergoing IM nailing for acute tibia fractures.
The PCL and Its Surrounding Bony Topography
The purpose of this study is to evaluate FNB as a supplement to the standard pain protocol for postoperative pain control. Our hypothesis is that a preemptive FNB will improve pain control and decrease the total opioid usage for patients undergoing IM nailing for acute tibia fractures.
The PCL and Its Surrounding Bony Topography
by Mark Purnell, MD
After successful published studies on the Anterior Cruciate Ligament (ACL) and its surrounding bony landmarks and topography, we are now focusing on the Posterior Cruciate Ligament (PCL).
Arthrosurface Study Prospective Non-Randomized, Externally Controlled, Open Label, Multi-Center Pivotal Study to Examine the Safety and Effectiveness of the HemiCAP Focal Femoral Condyle Resurfacing Prosthesis by Ferdinand Liotta, MD
Platelet Rich Plasma and Its Efficacy in Rotator Cuff Repairs
A Prospective Clinical Study by Ferdinand Liotta, MD
Use of Fixation in Clavicle Fractures in the Adolescent Population
by Tomas Pevny, MD
Complications of Fixation in Clavicle Fractures
by Tomas Pevny, MD
Analysis and Epidemiology of Ski Fractures and Injuries by Andrew Larson, BSME
Segond Fractures in Skiing
by Mark Purnell, MD
After successful published studies on the Anterior Cruciate Ligament (ACL) and its surrounding bony landmarks and topography, we are now focusing on the Posterior Cruciate Ligament (PCL).
Arthrosurface Study Prospective Non-Randomized, Externally Controlled, Open Label, Multi-Center Pivotal Study to Examine the Safety and Effectiveness of the HemiCAP Focal Femoral Condyle Resurfacing Prosthesis by Ferdinand Liotta, MD
Platelet Rich Plasma and Its Efficacy in Rotator Cuff Repairs
A Prospective Clinical Study by Ferdinand Liotta, MD
Use of Fixation in Clavicle Fractures in the Adolescent Population
by Tomas Pevny, MD
Complications of Fixation in Clavicle Fractures
by Tomas Pevny, MD
Analysis and Epidemiology of Ski Fractures and Injuries by Andrew Larson, BSME
Segond Fractures in Skiing
by Mark Purnell, MD
Roaring Fork Valley ACL Injury Prevention Program by Andrew I. Larson, BSME
Please click here to read description.
Please click here to read description.
Research Project with Aspen Valley Ski & Snowboard Club
New Helmet Technology Measures Head Trauma in Adolescent Skiers and Snowboarders by Zackary Stutzman, ATC
Please click here to read description.
New Helmet Technology Measures Head Trauma in Adolescent Skiers and Snowboarders by Zackary Stutzman, ATC
Please click here to read description.
Published Research
Newly Published Research in The American Journal of Sports Medicine
Congratulations to Stanley D. Gertzbein, MD, David Khoury, MD, Andrew Bullington, MD, Thomas A. St. John, MD and Andrew I. Larson, BSME of Aspen Orthopaedic Associates & The Aspen Sports Medicine Foundation for publishing an article in the August editions of The American Journal of Sports Medicine titled "Thoracic and Lumbar Fractures Associated With Skiing and Snowboarding Injuries According to the AO Comprehensive Classification".
Newly Published Research on Anterior Cruciate Ligament Reconstruction
Congratulations to Andrew I. Larson, B.S.M.E. and Fellow Alumni Daniel P. Bullock, M.D. of the Aspen Sports Medicine Foundation and Tomas Pevny, M.D. of Aspen Orthopaedic Associates.
In the July 2012 editions of Arthroscopy: The Journal of Arthroscopic and Related Surgery they published a research paper titled, “Comparison of 4 Femoral Tunnel Drilling Techniques in Anterior Cruciate Ligament Reconstruction”.
Research on Rabbits Leads to New Treatments for Humans
Newly Published Research on Anterior Cruciate Ligament Reconstruction
Congratulations to Andrew I. Larson, B.S.M.E. and Fellow Alumni Daniel P. Bullock, M.D. of the Aspen Sports Medicine Foundation and Tomas Pevny, M.D. of Aspen Orthopaedic Associates.
In the July 2012 editions of Arthroscopy: The Journal of Arthroscopic and Related Surgery they published a research paper titled, “Comparison of 4 Femoral Tunnel Drilling Techniques in Anterior Cruciate Ligament Reconstruction”.
Research on Rabbits Leads to New Treatments for Humans
Congratulations to N. Lindsay Harris, MD, Eleanor von Stade, MD, Mark Purnell, MD of Aspen Orthopaedic Associates and Andrew Larson, BSME, the Aspen Sports Medicine Foundation, Director of Research.
In the May 2012 edition of The Journal of Bone and Joint Surgery they published a research paper titled "The Effect of Platelet-Rich Plasma on Normal Soft Tissue in the Rabbit".
This important research investigates platelet-rich plasma which is reported to contain multiple growth factors, and has been utilized in orthopaedic surgery to aid healing in humans.
In the May 2012 edition of The Journal of Bone and Joint Surgery they published a research paper titled "The Effect of Platelet-Rich Plasma on Normal Soft Tissue in the Rabbit".
This important research investigates platelet-rich plasma which is reported to contain multiple growth factors, and has been utilized in orthopaedic surgery to aid healing in humans.
Intra-articular Findings in Primary and Revision Anterior Cruciate Ligament Reconstruction Surgery: A Comparison of the MOON and MARS Study Groups
James R. Borchers,*y MD, MPH, Christopher C. Kaeding,y MD, Angela D. Pedroza,y MPH,
Laura J. Huston,z MS, Kurt P. Spindler,z MD, and Rick W. Wright,§ MD,
on behalf of the MOON Consortium and the MARS Group||
Investigation performed at Vanderbilt University, Nashville, Tennessee
Descriptive Epidemiology of the Multicenter ACL Revision Study (MARS) Cohort
The American Journal of Sports, November 2010
Mark L. Purnell, MD, Tomas Pevny, MD, N. Lindsay Harris, MD, Eleanor F. von Stade, MD, and Andrew I. Larson, BSME
Please click here to read article.
Mini-incision Patellar Tendon Harvest and Anterior Cruciate Ligament Reconstruction Using Critical Bony Landmarks
Sports Medicine Arthroscopy Review, December 2009
Mark L. Purnell, MD and Andrew I. Larson, BSME
Please click here to read article.
Anterior Cruciate Ligament Insertions on the Tibia and Femur and Their Relationships to Critical Bony Landmarks Using High Resolution Voume Rendering CT
American Journal of Sports Medicine, July 2008
Mark L. Purnell, MD, Andrew I. Larson, BSME, William G. Clancy, JR, MD
Aspen Orthopaedic Associates & Aspen Sports Medicine Foundation (ASMF)
Please click here to read article.
Arthroscopic Management of Tibial Plateau Fractures
Techniques in Knee Surgery
N. Lindsay Harris, MD, Mark L. Purnell, MD, Tomas Pevny, MD, and Andrew I. Larson, BSME
Aspen Orthopaedic Associates & Aspen Sports Medicine Foundation (ASMF)
July 2007
Please click here to read article.
Arthroscopic Fixation of Tibial Spine Fractures Techniques in Knee Surgery
Tomas Pevny, MD, Mark L. Purnell, MD, N. Lindsay Harris, MD, and Andrew I. Larson, BSME
Aspen Orthopaedic Associates & Aspen Sports Medicine Foundation (ASMF)
January 2007
Please click here to read article.
Diagnosis and Surgical Treatment of Schatzker Type IV Variant Biplanar Medial Tibial Plateau Fractures in Alpine Skiers
Techniques in Knee Surgery
Mark L. Purnell, MD, Andrew I. Larson, BSME, Kent A. Schnetzler, MD, MS,
N. Lindsay Harris, MD, and Tomas Pevny, MD
Aspen Orthopaedic Associates & Aspen Sports Medicine Foundation (ASMF)
January 2007
Please click here to read article.
The Measurement of the Anatomic Anterior Cruciate Ligament Insertions on the Tibia and Femur and their Relationships to Critical Boney Landmarks Using High Resolution Volume Rendering CT
Mark L. Purnell, MD, Andrew I. Larson, BSME, William G. Clancy, JR, MD
* Presented at the American Orthopaedic Society for Sports Medicine meeting in Calgary, Canada, 2007
Acute Nonexertional Lateral Compartment Syndrome from Snowboarding. A Case Report
The American Journal of Sports Medicine
Joseph A. Assenmacher, MD and Robert E. Hunter, MD
Vol. 30, No. 5, 2002
Current Concepts: Skiing Injuries
The American Journal of Sports Medicine
Robert E. Hunter, MD
Vol, 27, No 3, 1999
Current Concepts in ACL Reconstruction Tomas Pevny, MD & Robert E. Hunter, MD
Chapter submitted for publication in the book Advanced Arthroscopy, edited by James Chow, MD
Acute Skier's Thumb Repaired With a Proximal Phalanx Suture Anchor
The American Journal of Sports Medicine
Craig Zeman, MD, Robert E. Hunter, MD, John R. Freeman, MD, Mark L. Purnell, MD, and Jackie Mastrangelo, MPA, RN
Vol. 26, No. 5, 1998
The Snowboarder's Foot and Ankle
The American Journal of Sports Medicine,
Douglas P. Kirkpatrick, MD, Robert E. Hunter, MD Peter C. Janes, MD, Jackie Mastrangelo, MPA, RN, and Richard A. Nicholas, MD
Vol 26, No. 2, 1998
Primary Traumatic Anterior Shoulder Dislocation in Patients 40 Years of Age and Older Arthroscopy: The Journal of Arthroscopic and Related Surgery
Tomas Pevny, MD, Robert E. Hunter, MD, and John R. Freeman, MD
Vol.14, No. 3, April 1998
Efficacy of Magnetic Resonance Imaging in the Classification and Management of Acute Tibial Plateau Fractures*
Robert E. Hunter, MD, Tomas Pevny, MD, Jackie Mastrangelo, MPA, RN, Daniel J. Aldrich, MD, Mark G. Creighton, MD, Valerie E. Weiss, BS
* Presented at the Western Orthopaedic Association’s 63rd Annual Meeting
San Diego, CA, August 1999
The Impact of Surgical Timing on Postoperative Motion and Stability Following Anterior Cruciate Ligament Reconstruction
Arthroscopy: The Journal of Arthroscopic and Related Surgery
Robert E. Hunter, MD, Jackie Mastrangelo, RN, MPA, John R. Freeman, MD, Mark L. Purnell, MD, and Richard H. Jones, PhD
Arthroscopy: The Journal of Arthroscopic and Related Surgery
Vol. 12, No. 6, December 1996
Review: Cervical Spinal Fractures in Alpine Skiers
Orthopedics
Phelps Kip, MD, Robert E. Hunter, MD
Vol 18, No 8, August 1995
James R. Borchers,*y MD, MPH, Christopher C. Kaeding,y MD, Angela D. Pedroza,y MPH,
Laura J. Huston,z MS, Kurt P. Spindler,z MD, and Rick W. Wright,§ MD,
on behalf of the MOON Consortium and the MARS Group||
Investigation performed at Vanderbilt University, Nashville, Tennessee
Mark L. Purnell, MD, N. Lindsay Harris, MD, & Andrew I. Larson, BSME
Please click here to read article.
Please click here to read article.
Descriptive Epidemiology of the Multicenter ACL Revision Study (MARS) Cohort
The American Journal of Sports, November 2010
Mark L. Purnell, MD, Tomas Pevny, MD, N. Lindsay Harris, MD, Eleanor F. von Stade, MD, and Andrew I. Larson, BSME
Please click here to read article.
Mini-incision Patellar Tendon Harvest and Anterior Cruciate Ligament Reconstruction Using Critical Bony Landmarks
Sports Medicine Arthroscopy Review, December 2009
Mark L. Purnell, MD and Andrew I. Larson, BSME
Please click here to read article.
Anterior Cruciate Ligament Insertions on the Tibia and Femur and Their Relationships to Critical Bony Landmarks Using High Resolution Voume Rendering CT
American Journal of Sports Medicine, July 2008
Mark L. Purnell, MD, Andrew I. Larson, BSME, William G. Clancy, JR, MD
Aspen Orthopaedic Associates & Aspen Sports Medicine Foundation (ASMF)
Please click here to read article.
Arthroscopic Management of Tibial Plateau Fractures
Techniques in Knee Surgery
N. Lindsay Harris, MD, Mark L. Purnell, MD, Tomas Pevny, MD, and Andrew I. Larson, BSME
Aspen Orthopaedic Associates & Aspen Sports Medicine Foundation (ASMF)
July 2007
Please click here to read article.
Arthroscopic Fixation of Tibial Spine Fractures Techniques in Knee Surgery
Tomas Pevny, MD, Mark L. Purnell, MD, N. Lindsay Harris, MD, and Andrew I. Larson, BSME
Aspen Orthopaedic Associates & Aspen Sports Medicine Foundation (ASMF)
January 2007
Please click here to read article.
Diagnosis and Surgical Treatment of Schatzker Type IV Variant Biplanar Medial Tibial Plateau Fractures in Alpine Skiers
Techniques in Knee Surgery
Mark L. Purnell, MD, Andrew I. Larson, BSME, Kent A. Schnetzler, MD, MS,
N. Lindsay Harris, MD, and Tomas Pevny, MD
Aspen Orthopaedic Associates & Aspen Sports Medicine Foundation (ASMF)
January 2007
Please click here to read article.
The Measurement of the Anatomic Anterior Cruciate Ligament Insertions on the Tibia and Femur and their Relationships to Critical Boney Landmarks Using High Resolution Volume Rendering CT
Mark L. Purnell, MD, Andrew I. Larson, BSME, William G. Clancy, JR, MD
* Presented at the American Orthopaedic Society for Sports Medicine meeting in Calgary, Canada, 2007
Acute Nonexertional Lateral Compartment Syndrome from Snowboarding. A Case Report
The American Journal of Sports Medicine
Joseph A. Assenmacher, MD and Robert E. Hunter, MD
Vol. 30, No. 5, 2002
Current Concepts: Skiing Injuries
The American Journal of Sports Medicine
Robert E. Hunter, MD
Vol, 27, No 3, 1999
Current Concepts in ACL Reconstruction Tomas Pevny, MD & Robert E. Hunter, MD
Chapter submitted for publication in the book Advanced Arthroscopy, edited by James Chow, MD
Acute Skier's Thumb Repaired With a Proximal Phalanx Suture Anchor
The American Journal of Sports Medicine
Craig Zeman, MD, Robert E. Hunter, MD, John R. Freeman, MD, Mark L. Purnell, MD, and Jackie Mastrangelo, MPA, RN
Vol. 26, No. 5, 1998
The Snowboarder's Foot and Ankle
The American Journal of Sports Medicine,
Douglas P. Kirkpatrick, MD, Robert E. Hunter, MD Peter C. Janes, MD, Jackie Mastrangelo, MPA, RN, and Richard A. Nicholas, MD
Vol 26, No. 2, 1998
Primary Traumatic Anterior Shoulder Dislocation in Patients 40 Years of Age and Older Arthroscopy: The Journal of Arthroscopic and Related Surgery
Tomas Pevny, MD, Robert E. Hunter, MD, and John R. Freeman, MD
Vol.14, No. 3, April 1998
Efficacy of Magnetic Resonance Imaging in the Classification and Management of Acute Tibial Plateau Fractures*
Robert E. Hunter, MD, Tomas Pevny, MD, Jackie Mastrangelo, MPA, RN, Daniel J. Aldrich, MD, Mark G. Creighton, MD, Valerie E. Weiss, BS
* Presented at the Western Orthopaedic Association’s 63rd Annual Meeting
San Diego, CA, August 1999
The Impact of Surgical Timing on Postoperative Motion and Stability Following Anterior Cruciate Ligament Reconstruction
Arthroscopy: The Journal of Arthroscopic and Related Surgery
Robert E. Hunter, MD, Jackie Mastrangelo, RN, MPA, John R. Freeman, MD, Mark L. Purnell, MD, and Richard H. Jones, PhD
Arthroscopy: The Journal of Arthroscopic and Related Surgery
Vol. 12, No. 6, December 1996
Review: Cervical Spinal Fractures in Alpine Skiers
Orthopedics
Phelps Kip, MD, Robert E. Hunter, MD
Vol 18, No 8, August 1995
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