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Baltimore Limb Deformity Course

Bone Ninja character holding a Covid-19 vaccine and a flag that says 'Covid-19 Update'

The decision is final:
We are proceeding full steam ahead with our in-person Course!

Maryland’s COVID numbers have declined to below 1 per 100,000–joining only Vermont and South Dakota in the Green Zone.* As of July 1, the state will lift most restrictions.

Join us in Baltimore for the novel experience of returning to a time when we can finally:

  • Meet face-to-face,
  • Network with leaders in the field,
  • Acquire hands-on experience with a variety of limb lengthening and deformity correction devices, and
  • Engage with industry representatives about important developments in this orthopedic sub-specialty.

The Code of Conduct and COVID-19 Policy for the 31st Annual Baltimore Limb Deformity Course is available here.

For those attending from outside of the United States, we will serve as your concierge to help schedule the Covid test required for your return flight.**

Register Now!

*As of June 23, 2021. “COVID-19 In Maryland: Maryland Now In ‘Green Zone,’ Reporting Case Rate Below 1 Per 100K” – CBS Baltimore (

**Please check with the Centers for Disease Control and your airline well before departure to ensure you have the most up-to-date guidance.

31st Annual Baltimore Limb Deformity Course, August 4 - 8, 2021, Four Seasons Hotel, Baltimore, Maryland, USA

Endorsed By:
Logo for Limb Lengthening and Reconstruction Society

Online registration is now open for the Hybrid Baltimore Limb Deformity Course, two pre-courses, one post-course, and Virtual-Only Baltimore Limb Deformity Course. You can also register by printing out the registration form and sending the completed form to the fax number or to the mailing address that is listed on the form. If you are not using your own personal credit card to charge the fees, please complete and return the Third Party Credit Card Authorization Form so that we have a valid signature on file.

This course has been the standard in teaching lower extremity alignment for the last 30 years. It is intended for orthopedic surgeons and podiatrists who treat long bone and foot/ankle deformities. No prior experience is required.

The course features lectures, deformity planning sessions, innovative apps, interactive participant case presentations, and an internationally renowned faculty. We will introduce basic and advanced limb reconstruction concepts including limb alignment, limb lengthening, corrective osteotomies, and internal and external fixation.

The 2019 in-person Course was attended by 275 physicians from 36 foreign countries and 33 U.S. states. The 2020 virtual Course attracted 320 attendees from 43 countries and 29 U.S. states.

Please see below links for more information about our 2021 courses, course venue, travel options, and contact information.

Intersecting external fixator rings Bone Ninja character holding a flaming torch and a flag that has intersecting external fixator rings on it

Dr. Michael Assayag teaching deformity correction to a large crowd at the Four Seasons Hotel

Course Objectives

Introduce basic and advanced concepts in limb alignment, corrective osteotomies, and internal and external fixation for limb reconstruction, including lengthening and realignment. Topics to be covered:

  • Single-level and double-level tibial and femoral deformities
  • Sagittal and oblique plane deformities
  • Rotational deformities
  • Foot and ankle deformities
  • Monolateral/circular external fixation
  • Acute correction techniques
  • Gait implications for angular and rotational deformities
  • Measurement of deformity on digital radiographs
  • Consequences of joint malorientation and malalignment
  • Limb lengthening techniques

Following completion of this event, participants will be able to:

  • Describe simple and complex pediatric and adult lower limb deformities
  • Interpret advances in the field of limb reconstruction and deformity correction
  • Identify optimal location of the osteotomy
  • Recognize the methodology of minimally invasive internal and external fixation
  • Analyze deformities of the lower limb using electronic media technology
  • Formulate treatment decisions that have been proven to yield better clinical outcomes

Dr. Michael Assayag and Dr. Janet Conway teaching participants at the Baltimore Limb Deformity Course

Hybrid Baltimore Limb Deformity Course

In Person: Thursday, August 5 – Saturday, August 7, 2021
Access to Virtual Content: Monday, July 19 – Wednesday, August 11, 2021
Chairmen: John Herzenberg, MD, and Philip McClure, MD
Directors: Michael Assayag, MD, Christopher Bibbo, DO, Janet Conway, MD, Noman Siddiqui, DPM, and Shawn Standard, MD
Registration Fee: $1,275–$1,695
AMA PRA Category 1 Credits™: 28.5

  • Highlights of the hybrid course will include:
    • Hands-on sawbone labs
    • Interactive adult, pediatric, and foot participant case presentations
    • Internationally renowned faculty
    • Option to choose a lab group that focuses on adult orthopedics, pediatric orthopedics, or foot/ankle applications (group assignments based on early registration)
    • Option to choose break-out sessions on adult, pediatric, and foot/ankle topics
    • Innovative apps:
      • Multiplier: This free app predicts values at maturity (upper and lower limb length discrepancy, bone length, lower extremity length, height, and epiphysiodesis timing)
      • Bone Ninja: This iPad app teaching tool was developed by Drs. Standard and Herzenberg at the International Center for Limb Lengthening, Sinai Hospital of Baltimore. The Bone Ninja is designed to help surgeons analyze deformities. Note: Please bring your iPad. If you do not own an iPad, you will be able to rent one for three days (advanced reservation required). All registrants of the three-day Baltimore Limb Deformity Course will receive a registration fee discount that they can apply to the purchase of the Bone Ninja app.

Virtual-Only Baltimore Limb Deformity Course

Available: Monday, July 19 – Friday, September 10, 2021
Chairmen: John Herzenberg, MD, and Philip McClure, MD
Directors: Michael Assayag, MD, Christopher Bibbo, DO, Janet Conway, MD, Noman Siddiqui, DPM, and Shawn Standard, MD
Registration Fee: $550
AMA PRA Category 1 Credits™: 40.5

  • Highlights of the virtual course will include:
    • Approximately 40 hours of lectures presented in the 2020 Virtual Course covering:
      • Pre-op planning
      • Single- and double-level lower limb deformities
      • Foot and ankle deformities
      • Sagittal and oblique deformities
      • Pediatric orthopedic considerations
      • Hardware applications
      • Surgical procedures
      • Updates on limb deformity correction
      • Recorded interactive sessions for Q & A and case discussions from the 2020 virtual event
    • The ninth edition (2020) of The Art of Limb Alignment is available to purchase on Amazon as a paperback (textbook and combined workbook). The tenth edition (2021) is available as a paperback (textbook only) and an eBook (textbook only).
    • Watch the Case Presentations live from Baltimore on Friday, August 6, 2021, at 6:30 p.m. (EDT). Please visit Course website to reconfirm time of this session as it may change.

Dr. Christopher Bibbo, Dr. Noman Siddiqui, and Dr. Michael Assayag teaching participants at a cadaver lab

Pre-Course | Cadaver Lab: Tibia and Foot

Limited Registration
Date: Wednesday, August 4, 2021
Course Times: 8:00 a.m. – 4:30 p.m. (bus departs Hotel at 7:00 a.m.)
Directors: Noman Siddiqui, DPM, Christopher Bibbo, DO, and Mark Myerson, MD
Registration Fee: $1,150
AMA PRA Category 1 Credits™: 7.0

Bone Ninja character holding a scalpel

  • Deformity correction applications for the foot and ankle
  • Bony and soft-tissue procedures, including reverse sural, reverse peroneus brevis, and medial plantar artery flaps
  • Percutaneous osteotomies (Gigli saw): proximal tibia, distal tibia, and midfoot
  • Baumann, Vulpius, and Strayer procedures for gastrocnemius-soleus recession
  • Percutaneous anterior compartment prophylactic fasciotomy
  • Peroneal nerve and tarsal tunnel decompressions
  • Posterior tibial tendon transfer
  • Medial approach to medial column arthrodesis
  • Application of circular external fixation

Dr. John Herzenberg, Dr. Philip McClure, and Dr. Rudolf Ganger holding external fixators and teaching participants at the Baltimore Limb Deformity Course

Pre-Course | Bone Lengthening Basics

Bone Ninja character holding a pencil and a flag that has intersecting external fixator rings on it Limited Registration
Date: Wednesday, August 4, 2021
Course Times: 7:30 a.m. – 5:00 p.m.
Chairman: Philip McClure, MD
Director: John Herzenberg, MD
Registration Fee: $425–$525
AMA PRA Category 1 Credits™: 8.0

  • This event is endorsed by the Limb Lengthening and Reconstruction Society (LLRS).
  • Participants will learn how to design stable external fixators, including ring considerations, pin factors, and wire factors.
  • Hands-on sawbone labs will allow participants to build stable tibial frames: one using only wires and one using only half-pins.
  • The biology of fracture healing and distraction osteogenesis will be presented as well as basic histology for bone pathology.
  • Experts in the field will present different approaches for optimizing the regenerate, including biomechanical, biological, and surgical strategies.

Post-Course | Hexapod Quadrathlon

Limited Registration
Date: Sunday, August 8, 2021
Course Times: 7:30 a.m. – 5:30 p.m.
Directors: John Herzenberg, MD, and Philip McClure, MD
Registration Fee: $425–$525
AMA PRA Category 1 Credits™: 8.25

Three Bone Ninja characters standing on a podium wearing medals and holding flowers in a stadium

  • This unique quadrathlon event will allow the athlete to construct frames to correct four separate bone challenges.
  • The athletes will have the opportunity to select their preferred equipment from three available hexapod frames. Participants to select frame in July 2021 based on space availability.
  • The events will take place in three separate stadiums, with each venue representing one hexapod device.
  • All three stadiums will cover the same bone challenges with specific focus placed on more complex scenarios:
    • distal femoral valgus,
    • double-level tibial deformity in achondroplasia,
    • distal radial growth arrest with deformity, and
    • double-level foot (miter) complex equinocavovarus.
  • These are team events, with the athletes competing in groups of four per station with one official (aka, faculty member) per station supervising the games.
  • The judges will explain the nuances of each device, osteotomy options, safe wire/pin patterns, pin insertion techniques, and methodology to make the planning more efficient.
  • The course will cover deformity patterns and correction strategies/tactics.
  • Points will be awarded for speed, accuracy, and teamwork. The 1st, 2nd, and 3rd place teams in each stadium will be awarded medals.
  • Learning Objectives:
    • Construct long bone, double-level, and miter frames using the hexapod system to correct four challenging deformities
    • Distinguish safe and stable pin constructs for each level of deformity correction
    • Interpret techniques for modified fixation in segments with limited space available
    • Recognize how correction software integrates into the strategies of deformity correction
    • Perform osteotomies of the tibia, foot, femur, and radius

Dr. Shawn Standard teaching participants how to perform deformity correction using various types of hardware

Hotel Information

The course venue is the Four Seasons Hotel (200 International Drive) in the heart of Baltimore’s Inner Harbor. The chic hotel is located 20 minutes from Baltimore-Washington International Airport (BWI) and 90 minutes from Washington Dulles International Airport (IAD). The discounted per-room fee for course attendees is $224 per night (plus taxes). The room rate includes complimentary basic guestroom Internet connectivity. It is highly recommended that you make your reservations early. The discounted rate is offered on a space-available basis through Sunday, July 11, 2021.

To make a reservation:

  1. Visit the Four Seasons Hotel website (
  2. Enter Check-In and Check-Out dates
  3. Update number of Adults and Children
  4. Add Promo “210803LDC” (general) or “210803DCC” (industry)
  5. Click “Check Rates”


  1. Call the hotel directly (+1.410.576.5800)
  2. Ask for in-house reservations
  3. Request the “Deformity Course” (general) or “Deformity Course Industry” (industry) rate


For those driving to the Four Seasons Hotel daily, we have arranged for a discounted daytime valet parking rate of $15/day. This rate does not apply to self-parking during the day or to overnight parking (currently $46 for valet and $25 for self-parking per night).

Getting to Our Course

There is limited shuttle service available. The least expensive method of travel between any of the Baltimore-Washington airports (BWI, DCA, IAD) is via Uber or Lyft.

*actual pricing may vary based on time of day

Participants at the Baltimore Limb Deformity Course learning deformity correction during cadaver labs and sawbone workshops

Course Materials Order Form

Covers of The Art of Limb Alignment and The Art of Limb Alignment: Taylor Spatial Frame textbooks Click here to download an order form if you are interested in purchasing DVDs, USBs, or other course materials. To purchase our textbooks, please visit by clicking on the links below:

Contact Information

Please contact Madeline Bacon with any questions about the Baltimore Limb Deformity Course.

Phone: +1.410.601.9798
Fax: +1.410.601.0585

Mailing Address:
Madeline Bacon
Baltimore Limb Deformity Course
Rubin Institute for Advanced Orthopedics
Sinai Hospital of Baltimore
2401 West Belvedere Avenue
Baltimore, Maryland 21215, USA

American Disabilities Act

If you require special accommodations to attend or to participate, please fax (1.410.601.0585) notification of your needs at least 30 days in advance of your arrival.

Dr. John Herzenberg and Dr. Noman Siddiqui teaching participants at the Baltimore Limb Deformity Course

Accreditation Statement for CME

LifeBridge Health is accredited by MedChi, the Maryland State Medical Society, to provide continuing medical education for physicians.

Designation Statement

LifeBridge Health designates this live and enduring material educational activity for a maximum of 44.75 AMA PRA Category 1 Credits™. Physicians should only claim credit commensurate with the extent of their participation in the activity.

Disclosure Policy of the Rubin Institute for Advanced Orthopedics

It is the policy of the Rubin Institute for Advanced Orthopedics (“Institute”) to comply with the Accreditation Council for Continuing Medical Education (ACCME) Standards for Commercial Support of Continuing Medical Education. All Speaker participating in sponsored programs by Institute are required to disclose to the program audience any real or apparent conflict(s) of interest related to the content of their presentation(s). In accordance with the ACCME requirements on disclosure information, relationships of presenters with commercial interests (if any) will be included in materials distributed at the time of the Course.

CME Committee’s Disclosure

The LifeBridge Health Continuing Medical Education Committee members and their spouses/partners have no financial interest or affiliation with any entity producing, marketing, re-selling, or distributing health care goods or services consumed by, or used on, patients.

What Participants Have Said About the 2020 Course

  • “Please convey also my congratulations to all the Faculty members as well as to the Scientific and Administrative staff for their exceptional performance. I took the course back in 2014 and I have to say that the online one this year really impressed me. This is why your Clinic sets the benchmark in many disciplines in Orthopaedic Surgery. The only thing that was missing were the cadaver labs and the person to person discussions.”
    from a physician in Greece
  • “Congratulations to your entire team for successfully conducting one of the best online conferences of the year. It has truly been an amazing learning experience.”
    from a physician in India
  • “I have reached session 3, and I found it amazing. You have done a wonderful job.”
    from a physician in Kenya
  • “I just finished watching the course presentations. This was a fantastic opportunity to attend the course despite the craziness of 2020. I would like to thank the team for the effort made to bring this course into life online.”
    from a physician in Syria

Participants at the Baltimore Limb Deformity Course learning deformity correction during cadaver labs and sawbone workshops

  • “I have not missed even a single lecture. You all did a great job in organizing such a wonderful virtual course, which was at least as good as the in-person past courses.”
    from a physician in Israel
  • “Nice session, well organized. Great teamwork.”
    from a physician in India
  • “May I extend my congratulations to the team on a great meeting effort for the course this year. Again you excelled and showed why it remains the gold standard around the world.”
    from a physician in the United Kingdom
  • “Great job this weekend! … The program and presentations were wonderful. The results showed the effort. Hats off to you guys!”
    from a physician in the United States

Participants learning how to perform deformity correction using various types of hardware

  • “Thank you very much to your amazing team for a most impressive virtual BLDC this year … perhaps not the 30th birthday party you had always envisioned, but quite an impressive offering! A hearty congratulations, and thank you again!”
    from a physician in the United States
  • “Thank you for the countless hours and so much hard work to make a great virtual meeting take place!! Hoping to see you in Baltimore next year!”
    from a physician in the United States
  • “I am so happy I signed up for your course this year. It is so well done and has helped me understand some of the nicer points. I’m impressed at how this particular field has grown since my residency. This is the fourth time I’ve taken the course since I was a third-year resident, which was around 1991. Everything is just done in such a beautiful fashion. So well calculated. I’m itching to do more of this type of work. I just wanted to commend you on a wonderful course.”
    from a physician in the United States

Participants at the Baltimore Limb Deformity Course learning deformity correction during cadaver labs and sawbone workshops

2021 Course Sponsors

The 2021 Course is made possible through educational grant and in-kind equipment support from: