July 16, 2018

ROSEMONT, Ill., July 13, 2018 /PRNewswire-USNewswire/ — Foot and ankle orthopaedic surgeon, J. Chris Coetzee, MD, MBChB, has been named president of American Orthopaedic Foot & Ankle Society (AOFAS)^®, the leading organization for lower extremity medicine and foot and ankle surgery. In addition to leading the Society as president, Coetzee will serve on the Board of Directors of the Orthopaedic Foot & Ankle Foundation.

As president of the 2,200-member Society, Coetzee will continue the mission of advocating for patients on local and national levels to ensure they receive the best and most appropriate orthopaedic foot and ankle care. He will also continue the AOFAS tradition of providing outreach to communities in need through the Orthopaedic Foot & Ankle Foundation. One of Coetzee’s other priorities during his one-year term is ensuring that orthopaedic residents are involved in the Society early on during their medical training.

“We still live in uncertain times. Belonging to an organization like the AOFAS helps me channel the uncertainties of today into creative solutions for tomorrow,” Coetzee said. “I am looking forward to continuing collaboration with peers from all over the world to work towards our goals of improved patient care, education, and outreach.”

Coetzee earned his medical degree from University of Pretoria School of Medicine in South Africa and performed his orthopaedic residency at University of Stellenbosch in Cape Town, South Africa. He also completed a fellowship in foot and ankle orthopaedics at the University of Washington Harborview Medical Center in Seattle in addition to a trauma fellowship in Davos, Switzerland. His current work is through Twin Cities Orthopedics in Minneapolis-St. Paul.

As an avid supporter of the educational mission of AOFAS, Coetzee served as program chair of the 2014 AOFAS Annual Meeting, and has chaired several other AOFAS committees. He is an assistant editor of the AOFAS peer-reviewed journal Foot & Ankle International and a reviewer for other orthopaedic journals.

Coetzee added, “My hope for all in the Society is to live by the words of Benjamin E. Mays: ‘The tragedy of life is often not in our failure, but rather in our complacency; not in our doing too much, but rather in our doing too little; not in our living above our ability, but rather in our living below our capacities.'”

About Foot and Ankle Orthopaedic Surgeons  

Foot and ankle orthopaedic surgeons are medical doctors (MD and DO) who specialize in the diagnosis and treatment of musculoskeletal disorders and injuries of the foot and ankle. Their education and training consists of four years of medical school, five years of postgraduate residency, and a fellowship year of specialized surgical training. These specialists care for patients of all ages, performing reconstructive surgery for deformities and arthritis, treating sports injuries, and managing foot and ankle trauma.

About the AOFAS 

The American Orthopaedic Foot & Ankle Society (AOFAS) mobilizes our dynamic community of foot and ankle orthopaedic surgeons to improve patient care through education, research, and advocacy. As the premier global organization for foot and ankle care, AOFAS delivers exceptional events and resources for continuous education, funds and promotes innovative research, and broadens patient understanding of foot and ankle conditions and treatments. By emphasizing collaboration and excellence, AOFAS inspires ever-increasing levels of professional performance leading to improved patient outcomes. For more information visit the American Orthopaedic Foot & Ankle Society online at aofas.org.

SOURCE American Orthopaedic Foot & Ankle Society

Related Links

http://www.aofas.org

PORTLAND, ORE. (PRWEB) JULY 12, 2018

A recent study published in the Journal of Clinical Biomechanics examined a comparison of Acutrak 2®–4.7 mm fully threaded headless compression screws and 4.0 mm partially threaded cancellous screws and found Acutrak was the potentially favorable option for the fixation of medial malleolus fractures.

The investigator-initiated biomechanical study was led by Robin Z. Cheng of the University of California Davis Medical Center. Additional contributors were from UC Davis and the Stanford University School of Medicine. The work was funded in part by Acumed.

The study utilized 18 synthetic tibiae, each cut 18 cm from the tibial plafond, to simulate medial malleolar fractures. Each tibia was then randomly assigned fixation with either two Synthes parallel, partially threaded, unicortical 4.0 mm cancellous screws or two parallel, fully threaded Acutrak 2–4.7 mm headless compression screws, with nine tibiae in each group. To simulate tensile force on the fracture fragment, a single steel slotted spring pin was inserted through the fragment and attached to a steel cable hooked to a test machine actuator. Force was applied with an initial 50N then pulled at a rate of 10 mm per minute. Distal and lateral movement was measured to failure via spherical markers placed on the anterior portion of the medial malleolus and monitored with a CCD camera. Clinical failure was defined as 2 mm of intrarticular fragment displacement, with construct stiffness measured in both distal and lateral directions.

All tests resulted in both distal and lateral displacement of the medial malleolar fragment. Construct stiffness results for Acutrak 2–4.7 mm screws were significantly greater than the 4.0 mm cancellous screws, with mean stiffness results at:

Proximal–Distal:
4.0 mm Cancellous Screws: 668 N/mm
Acutrak 2–4.7 mm Screws: 1,699 N/mm

Medial–Lateral:
4.0 mm Cancellous Screws: 281 N/mm
Acutrak 2–4.7 mm Screws: 604 N/mm

It is important to note that synthetic tibiae were used in this study rather than cadaveric bone. The Acutrak 2 screws, however, were noted by the authors as having a larger diameter than the 4.0 mm screws, which would engage more bone and potentially result in lower bone and screw stress.

Additionally, artificially simulated axial loading in a single loading mode was observed in this study as a means to demonstrate the force exerted by the deltoid ligament on the medial malleolus without taking other soft tissue structures into account. And the tensile stress was modeled as a singular force, rather than cyclical loading, which would model stress over time.

Key findings of the Cheng et al study were in favor of using Acutrak 2–4.7 mm screws in medial malleolar fractures:

“When subjected to a single load to failure, the headless compression screw construct provides over two times greater stiffness in both the proximal-distal and medial-lateral directions. Additionally, the headless compression screw construct sustains higher forces prior [to] reaching 2 mm lateral displacement, with 2 mm of displacement defined as clinical failure.”1

“…our findings suggest that a headless compression screw construct provides a stiffer construct than a parallel unicortical cancellous screw construct. The headless compression construct sustains higher load prior to reaching clinical failure in the lateral direction.”1

“The increased resistance to both axial and shear loading, greater interfragmentary compression, and low-profile design of the Acutrak 2 headless compression screw may decrease the rate of clinical failure and reduce the need for revision surgeries, thus being a potentially improved option for fixation of horizontal medial malleolus fractures.”1

About Acumed 

Acumed is a global leader of innovative orthopaedic and medical solutions developed to improve patient care. With 30 years of experience in the orthopaedic industry, our mission is to aid the afflicted through the ingenuity of our minds, the labor of our hands and the compassion of our hearts. Acumed was founded in 1988 by Randy and Mary Huebner and became a member of the Colson Associates group of companies in 1999. The company is headquartered in Hillsboro, Oregon with a global sales and distribution network supported worldwide.

1. Cheng RZ, Wegner AM, Behn AW, Amanatullah DF. Headless compression screw for horizontal medial malleolus fractures. Clin Biomech. 2018;55:1–6.