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Weight Bearing CT A Key Topic at EFAS 2018

2-EFAS-PromoToolkit_SocialMediaBanner_1024X512October 4-6 marks the 12th EFAS International Congress in Geneva, Switzerland. This year’s theme, State of the Art Foot and Ankle Surgery, focuses on the latest clinical and scientific findings in the foot and ankle community.

Weight bearing CT imaging has emerged as an essential tool for the proper evaluation of deformities of the ankle, midfoot, forefoot, and hindfoot. EFAS attendees will have multiple opportunities to learn about the modality in the main program, including the following podium lectures:

  • 3D biometrics: A prospective comparative evaluation of the Foot Ankle Offset using weight bearing CT semi automatic software”, Presented by Dr. Francois Lintz
  • How are coronal alignments of the knee and hindfoot correlated ? A clinical study of 124 lower limbs using 3D weight bearing imaging”, Presented by Dr. Francois Lintz
  • Weightbearing CT and MRI findings of Stage II Flatfoot Deformity: Can We Predict Patients at High-Risk for Foot Collapse?”, Presented by Dr. Cesar de Cesar Netto

In addition, several posters on display will review recent research efforts involving weight bearing CT, including:
– “Distance mapping analysis of the Foot and Ankle complex joints using Weight Bearing CT in varus and valgus deformities”, Dr. Francois Lintz

Comparative study of 3D versus 2D first intermetatarsal M1M2 angle measurement using Weight Bearing CT”, Dr. Francois Lintz
Templating of Acute and Chronic Syndesmotic Ankle Lesions in Weightbearing and Nonweightbearing CT”, Dr. Arne Burssens
Clinical and Radiological Outcome after a Medial Calcaneal Osteotomy Assessed by Weightbearing CT”, Dr. Arne Burssens

Intrinsic Anatomical Risk Factors in High Ankle Sprains Determined by Computed 3D CT Analysis”, Dr. Arne Burssens

Foot Alignment in Basketball and American Football Elite Athletes. Are they different?”, Dr. Cesar de Cesar Netto

Instability of the First Ray and Hallux Valgus in Patients with Adult Acquired Flatfoot Deformity (AAFD): A Weightbearing CT Study”, Dr. Cesar de Cesar Netto

The Weight-Bearing CT International Study Group will be hosting a special session on Friday, October 5th featuring presentations by Dr. Arne Burssens, Dr. Cesar de Cesar Netto, and Dr. Francois Lintz. To RSVP, click here.

WBCT Scientific Session at EFAS International Congress


The Weight-Bearing CT International Study Group (WBCT ISG) will host its next scientific session during the EFAS International Congress. The session, open to all attendees, will occur on October 5 between 12:30 and 2:00 pm in the Roma Meeting Room at the Starling Geneva Hotel and Conference Centre. Attendees can register for the scientific session at

The WBCT ISG promotes dialogue and collaboration on weight-bearing CT research initiatives. Membership is comprised of global foot & ankle surgeons, and includes affiliate members from the radiology and biomechanical engineering disciplines.

Foot and ankle specialists from seven healthcare institutions representing the United States, Germany, Belgium and Finland will speak at the session. Group members are working to create standardized protocols for measurements and analysis.

Lunch will be provided to all participants in the scientific session.

The session, moderated by Dr. Francois Lintz, MD, will review the following topics:

o   Results of a 5 year, 10,000 scans experience with WBCT. Impact on costs, radiation exposure and time spent; Presented by Dr. Martinus Richter MD, PhD

o   Advanced imaging of syndesmotic injuries: where are we now and what can we do with weight-bearing CT; Presented by Dr. Shadpour Demehri, MD

o   The use of distance mapping in combination with WBCT; Presented by Dr. Sorin Siegler, PhD

o  Centre of rotation of the subtalar joint: novel research in the use of WBCT to assess dynamic function; Presented by Dr. Andrew Goldberg, MD

o   Deformity corrections and 3D planning based on the WBCT; Presented by Dr. Kris Buedts, MD
o   Use of Low dose WBCT in cartilage and bony lesions of the ankle; Presented by Dr. Oliver Michelsson, MD

o  Three-dimensional modeling of the weight bearing ankle syndesmosis; Presented by Dr. Arne Burssens, MD

CurveBeam is a proud co-sponsor of the WBCT ISG.

Download the official event brochure here

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Cone Beam Computed Tomography with Load Technique (WBCT) Allows Correct Evaluation of Foot and Ankle Anatomy

61 xrayImaging studies are important tools in diagnosis, therapeutic decision-making, and evaluation of functional results in the area of ankle and foot performance. The most commonly used resources are conventional X-rays with load, ultrasound, computed tomography (CT), and magnetic resonance imaging (MRI). The initial diagnostic investigation often uses conventional X-rays with load to reproduce the three-dimensional bone relationships in the ankle and foot more accurately. However, the information acquired from this method can be limited.

Computed tomography (CT) provides for high-resolution images of the ankle and foot in different axes. Fractures, degenerative changes, bone healing, surgical planning for osteotomies, arthrodeses, and arthroplasties are all instances in which CT is the go-to imaging tool. However, it’s not a perfect option. One distinct issue with conventional CT is the fact that the technology cannot reproduce images of feet and ankles experiencing body weight load.

Over the last ten years, the cone beam computed tomography with load technique (WBCT) proved feasible for the instances mentioned above. It also offers high reproducibility of the real situation of the ankle and foot when body weight is factored in.

A review of relevant clinical studies in multiple databases from January 1999 to October 2017, titled “Weight-Bearing Computed Tomography of the Foot and Ankle: An Update and Future Direction,” analyzed the available literature on WBCT imaging in patients with foot and ankle disorders.

This review concluded that WBCT imaging allows correct evaluation of foot and ankle anatomy with the patient in a standing position, providing images with high spatial resolution, short image acquisition time, low dose of radiation, and costs which are similar to other available imaging technologies. This diagnostic tool can be used for decision making in the treatment of deformities of the ankle, hindfoot, midfoot, and forefoot.

In addition to the fact that WBCT imaging can be done with a patient in an orthostatic position, the advantages of this new technology include:

  • high resolution
  • 3D reconstruction
  • fast image acquisition
  • low radiation dose
  • small device footprint
  • lower cost than conventional CT

CurveBeam is the maker of pedCAT, which provides bilateral, weight-bearing scans of the foot and ankle.