2019 Annual Clinical  Assembly of Osteopathic Surgeons


This year's Annual Clinical Assembly (ACA) will be held October 19-23, 2019 at The Broadmoor Hotel in Colorado Springs, Colorado. 

Offering educational programming across six surgical disciplines (cardiothoracic and vascular, general, neurological, plastic and reconstructive, proctological, and urological), the ACA is the trademark conference of the American College of Osteopathic Surgeons, attracting over 1,200 surgeons from across the country. The conference offers AOA CME credits as well as multiple opportunities for networking, reconnecting with colleagues and meeting new peers.


Online pre-registration is now open! You can save up to $100 by registering during the early registration period. Do not miss out on the opportunity to take advantage of all that this conference offers attendees and do so at a discounted rate!

Visit this page for more information and check back soon to secure your spot by registering and booking your hotel room. 

Poster Presentations

Poster Presentations The ACA attracts osteopathic residents, surgeons and program directors from across the country. It is an ideal venue to share your research and gain recognition, connections and opportunities to advance your work with the osteopathic surgical community.

Residents, fellows and medical students are encouraged to apply. For those residents whose training is evaluated by the ACOS, presentation of a poster at the ACA may be done to meet the annual report requirements for a scholarly activity. Approval from your training program director is required.

The portal for poster presentations closed July 28, 2019. Thank you to all who submitted proposals for this year's ACA. You may still visit the 2019 ACA Posters page for information by clicking here.


The ACOS Annual Clinical Assembly offers educational programming across six surgical specialties, offering CME credits for each program.

This year's comprehensive schedule can be found here


Hosted by the Residency Evaluation and Standards Committee (RESC), the ACOS is pleased to host the 2019 Surgical Educators Seminar

The Surgical Educators Seminar is a CME eligible workshop developed specifically for program directors and faculty. The content of this seminar will focus on tools that assist educators in creating a successful program, while also providing a forum for educators to discuss common and emerging issues affecting their training program. 

Registration can be completed online. When registering for the ACA, scroll down to optional workshops and select Surgical Educators Seminar.

Register here.


Booth space is available in the exhibit hall at the Annual Clinical Assembly on a first come, first serve basis and is ideal for those seeking exposure to ACA attendees. For more information, click here.



October 20
October 20 October 21
October 21 
Yvonne Cagle, M.D. Jake Weidmann  Amanda Lindhout   Karen J. Nichols, DO, MA, MACOI, CS 
 Astronaut, National Aeronautics
and Space Administration
Master Penman  Bestselling Author    Former Dean, Midwestern University/College
of Osteopathic Medicine
“Professional Passion” Theodore F. Classen Memorial Lecture:
"Artistry and Surgery: The Power of Creative Problem Solving"

“The Road to Resilience"

"Medical Ethics and Medical Errors"

ACA Educational Program Schedule

The ACA offers educational programming across six surgical specialties. Click here to see the current program schedule.

Hotel and Travel for the 2019 ACA

The host hotel for this year's Annual Clinical Assembly is the Broadmoor Hotel and Resort in Colorado Springs, Colorado. Book your flight and secure your hotel room today. Click here for hotel and travel information, including exclusive discounts on air, hotel and car rentals for ACA attendees.