Difficulty of making the findings: Moderate
Difficulty of interpreting the findings: Moderate

Diagnosis: Lisfranc injury

Average Case-Specific Score: 1.42 / 2

Answer Key

Sample Preliminary Report

Slight widening between the first and second metatarsal bases with slight offset between the medial margins of the second metatarsal base and middle cuneiform, concerning for Lisfranc injury. Recommend CT for further evaluation.

No acute fracture identified.

Joint spaces are maintained.

Case-Specific Questions Answers
Malalignment Yes
Lisfranc joint Yes




User Case Specific Score Preliminary Report
jessica.miller.1 0

No evidence of fracture. The joint spaces are maintained. Soft tissue swelling overlying the dorsal aspect of the metatarsals. No radiopaque foreign body.

danielle.c.mihora.1 0

normal

emily.haas 0

bony fragment noted along the lateral aspect of the base of the 2nd metatarsal concerning for acute fracture. widening of the joint space between the 1st and 2nd metatarsals, suspicious for lisfranc injury

nicholas.guys 0

FINDINGS/IMPRESSION:

No acute fracture or dislocation. Alignment is normal. Joint spaces are maintained. The soft tissues are normal.

jennifer.lindsey.1 0

Nondisplaced fracture of the cuboid.

coleman.breland 0

Mild soft tissue prominence on the superior aspect of the LEFT midfoot. No definitive acute fractures or malalignment.

joseph.hoang 0

No acute fracture or dislocation

mamiraul@wakehealth.edu 0

Soft tissue swelling of the dorsal foot without underlying fracture of or osseous abnormality. Consider MRI if there is clinical concern for osteomyelitis, as standard radiograph is relatively insensitive.

dmsylves@wakehealth.edu 0

No acute fracture or traumatic malalignment.

Michael.Wien 0

NAD

Samantha.Jayasinghe 0

Left navicular fracture with mild soft tissue swelling.

Jessica Hinaman 0

Acute minimally displaced fracture of the posterior talar body. Joint spaes maintained.

Benjamin Daniel 0

No acute

Spencer Giglio 0

Abnormality on the first metatarsal at IMP joint

Ayca-dundar 0

normal

Jacob Gilchrist 0

No fracture. ankle swelling.

Emma Baker 0

Subtle thickening of the proximal fifth metatarsal diaphysis which could represent a healing stress fracture.
No acute fracture or malalignment.

Rachel Speakman 0

Minimal soft tissue swelling over the dorsal aspect of the mid-foot without underlying fracture or radiopaque foreign body.

sarah.rosasco 0

dorsal soft tissue swelling

brian-grieve 0

No Acute fracture or dislocation. No soft tissue abnormality.

bryan-bozung 0

.

Jennifer Dennison 0

No fracture or malalignment. Joint spaces maintained.

blair.lowery 0

acute mod displaced calcaneus fracture

Ishmael Raheem 0

normal

ayearwood 0

Soft tissue swelling. no acute fracture

sbhupathy 0

No acute fracture or malalignment. No significant soft tissue swelling.

victoria.furlong-servin 0

normal foot radiograph

vivian.huang 0

No acute osseous abnormalities.

caleb.duggan 0

Acute mildly displaced fracture of the medial cuboid of the left foot with surrounding edema.

natalia.eugene 0

Fracture of the first cuneiform

Cole Bailey 0

Midfoot fx

Evan King 0

Nl foot

jyoon5 0

Diffuse edema throughout the soft tissues of the foot. No fracture or malalignment. No radiopaque foreign body.

Adam Petraglia 1

Irregular appearing ossific fragment at the lateral aspect of the base of the 2nd metatarsal concerning for avulsive injury. CT could evaluate further.

Mild swelling about the soft tissues of the forefoot.

Michael.Hornick 2

Lisfranc injury

William.parkinson 2

lisfranc

shelby.k.frantz 2

Lateral subluxation of second metatarsal at lisfranc joint, compatible with Lisfranc injury.

kai.wang 2

widening of the lisfranc interval with slight lateral subliaxation of the 2nd to 5th TMT joints. Consistent with acute divergent lisfranc sublaxation. consider CT to asses for additional injury.

jennifer.j.huang 2

Subtle widening of the space between the first and second metatarsal bases, with malalignment of the medial aspect of the second metatarsal bone with the intermediate cuneiform bone. Soft tissue swelling about the midfoot. These findings raise concern for Lisfranc ligament injury.

erica.emmons 2

Increased widening of the Lisfranc joint space, with lateral deviation of the base of the 2nd metatarsal. No definite acute fracture.

matthew.smith 2

Lisfranc fracture-dislocation

thomas.wong 2

lisfranc widening, get WB image vs CT/MR

oladapo.r.adeniran 2

Widening of the 1st and 2nd metatarsal space and displacement of the 2nd metatarsal base laterally in relation to the middle cuniform. Mild swelling of the dorsum of the foot.
No fracture.

cameron.henry 2

homolateral 2-5th metatarsal displacement indicative of underlying lisfranc fracture-dislocation

Demo Resident #1 2

Subtle widening of the space between the first and second metatarsal bases, with malalignment of the medial aspect of the second metatarsal bone with the intermediate cuneiform bone. Soft tissue swelling about the midfoot. These findings raise concern for Lisfranc ligament injury.

heather.stefek 2

Small linear osseous density lateral to the base of the second metatarsal likely represents a fracture fragment from a 2nd or 3rd metatarsal base fracture. Lateral displacement of the second and third metatarsals from the cuneiforms on AP view, and mild plantar forefoot displacement on lateral view concerning for Lisfranc injury.

jarred.todd 2

Widening of lisfranc joint space, get weightbearing films

kevin.mclean 2

Lisfranc injury.

Alyssa.mcnamara 2

Widening of the space between the 1st and 2nd metatarsals, likely representing a lisfranc injury. Dorsal soft tissue swelling without definite fracture. Consider further evaluation with MRI.

kbolger@wakehealth.edu 2

Query nondisplaced intraarticular fracture of the proximal 2nd metatarsal, with possible disruption of the lisfranc ligaments. Recommend CT or weightbearing radiographs to further evaluate.

ppolamra@wakehealth.edu 2

Offset of 2nd metatarsal alignment with medial cuneiform, increased offset between the 2nd and 3rd metatarsal with fleck sign consistent with acute fracture of the 2nd metarasal/lisfranc injury.

Recommend ct

platterm@wakehealth.edu 2

Lateral displacement of the 1st MT with respect to the medial cuneiform and lateral displacement of the 2nd MT with respect to the intermediate cuneiform. Findings are consistent with a LisFranc dislocation and CT is recommended to evaluate for underlying fracture not well demonstrated on plain radiography. ST swelling about the forefoot.

katcheso@wakehealth.edu 2

widening of the second and third bases of the metatarsals, with associated calcific densities in the joint spaces, concerning for lisfranc joint injury.
Linear density with coritcal irregularities along the base of the 3rd metatarsal, which may reflect acute fracture.

general soft tissue swelling

abond@wakehealth.edu 2

Widening of the Lisfranc interval between the bases of the first and second metatarsals with a small ossific fragment visualized along the medial 2nd metatarsal base, raising concern for acute Lisfranc complex injury. Additional small fractures not detectable by plain radiograph are possible, and recommend CT of the foot to further evaluate.

twcowan@wakehealth.edu 2

Widening of the Lis-Franc interval concerning for occult fracture.

saribind 2

Acute Lisfranc joint injury w/dorsal foot swelling.

ajthomps@wakehealth.edu 2

Acute widening of the Lisfranc interval concerning for ligamentous injury. No acute fracture. Soft tissue swelling about the midfoot.

Justin Little 2

Lateral offset of the 2nd metatarsal base with respect to the medial cuneiform with widening at the Lisfranc joint. No discernable fracture fragments. Recommend CT of the foot to evaluate for Lisfranc injury and occult fracture. Mild midfoot soft tissue swelling.

jaime fields 2

Acute minimally displaced fracture at the base of the 2nd metatarsal. Mild widening of the lisfranc joinc concerning for acute ligamentous injury. Soft tissue swelling about the medial midfoot. Recommend CT foot for further evaluation.

Collin Innis 2

Widening of the 1st TMT joint and lateral subluxation of the 3rd metatarsal with respect to the medial cuneiform concerning for Lisfranc injury. Consider weight bearing radiographs or CT for further characterization. No definite fracture identified.

nkdomeisen 2

XX mm of lateral subluxation at the base of the second metatarsal with respect to the middle cuneiform concerning for lisfranc joint injury. Tiny ossific fragment along the medial base of the third metatarsal with lateral subluxation of the third metatarsal concerning for acute fracture. Recommend CT for further evaluation.

Hayden Barrett 2

Query subtle lisfranc interval widening, with slight offset of the 2nd metarsal and intermediate cuneiform bones. There are also cortical irregularities at the base of the second and third metatarsals, which may represent acute fractures. Recommend follow up MRI if there is concern for ligamentous injury.

Gibson Klapthor 2

Mild widening of the Lisfranc interval with a fleck of bone between the base of the 1st and 2nd metatarsals concerning for acute Lisfranc joint injury. Recommend CT for further evaluation as there are likely additional radiographically occult fxs.

Zack Williams 2

Acute Lisfranc’s fracture dislocation with widening of Lisfranc’s interval and X mm of lateral displacement of the 2nd metatarsal on the medial cunieform. Likely associated fracture at the base of the second metatrsal. Reccommend CT for futher evalustion.

Scott Gerwe 2

lis franc fracture

michael.a.kostenko.mil 2

Lis Franc

Madison Crank 2

Avulsion fracture of the lateral base of the 2nd metatarsal. Lateral subluxation of the 3rd metatarsal at the 3rd TMT joint. Lateral subluxation of the 2nd metatarsal at the middle cuneiform. These findings are concerning for Lisfrank ligament injury. Soft tissue swelling about the dorsal forefoot.

cdwilson 2

Lateral subluxation of the 2nd metatarsal in relation to the middle cuneiform, concerning for lisfranc injury. There is a linear osseous density lateral to the base of the second metatarsal, concerning for acute avulsion fracture.

Deepanshu Singh 2

findings concerning for acute lisfranc injury with homolateral lisfranc dislocation and a small ossific fragment at the base of the 2nd metacarapal suggesting an acute fracture.

Achintya Patel 2

Widening of the Lisfranc joint concerning for ligamentous injury. MRI could further evaluate if clinically indicated.

Brooks Rodibaugh 2

Widening of lisfranc joint with medial displacement of the 2nd metatarsal with respect to the middle cuneiform. increased space for between the 2nd and 3rd metatarsals with lateral displacement of the 3rd metatarsal. These findings are concerning for lisfranc injury.

ossific fragments between the bases of the 2nd and 3rd metatarsals and middle and medial cuneiform likely represent avulsion fractures.

Dana Vissing 2

No acute fracture.

Lateral subluxation of the 2nd TMT consistent with list franc injury, recommend MRI for further evaluation.

westbera@musc.edu 2

liosfranc homolateral

jgerras 2

Acute lisfranc fracture. Comminuted fracture of the lateral cuneiform bone. Soft tissue swelling.

nagar048 2

lisfranc joint widening, likely lisfranc injury

Chris Roberts 2

Avulsion fracture of the 3rd metatarsal base.

Questionable widened interval between the 1st and 2nd metatarsal bases and off set of the 2nd metatarsal base and intermediate cuneiform which could be seen with a lisfranc injury. CT could further evaluate.

Jordan Aikens 2

Widening of the lisfranc interval with acute fracture of the 2nd metatarsal base with asymmetry of the alignment of the 2nd metatarsal/middle cuneiform interface, concerning for lisfranc injury.
Dorsal foot soft tissue swelling.

Susana Bracewell 2

Lateral displacement of the second through fifth metatarsals on AP view, concerning for Lisfranc injury. Recommend CT for further evaluation as well as evaluation for non-radiographically apparent fractures.

Kyle Pazzo 2

Subtle lateral translation of the second metatarsal relative to the intermediate cuneiform, which raises concern for a Lisfranc injury. Recommend orthopedics consultation.

Katherine Johnson 2

Findings concerning for Lisfranc injury with small avulsion fracture along the medial aspect of the second metatarsal base with slight lateral subluxation of the second metatarsal base relate to the middle cuneiform. Additional small ossific fragments adjacent to the medial aspect of the third metarsal, medial cuneiform, and lateral cuboid concerning for additional acute fractures. Mild soft tissue swelling of the forefoot. Consider CT for further evaluation.

Louis Leon 2

lisfranc

Ryan Staudte 2

Widening of Lisfranc interval c/f ligamentous injury.

mborten 2

Acute lisfranc injury as evidenced by diastasis of the 1st and 2nd meetatarsal bases and possible avulsion fx of the 2nd metatarsal base (fleck sign). Consider weight bearing view for confirmation.

ava.mirtsching 2

Lisfranc fracture dislocation with midfoot soft tissue swelling.

michael.syrett 2

Lisfranc

salapierre 2

Widening at the Lisfranc ligament suspicious for soft tissue injury. This could be further assessed with weightbearing radiographs or MRI.

maryam.mian 2

Lis franc injury

nicolas.garza 2

Widening of the Lis Franc joint. Homolateral displacement of metatarsal 2-5.

liam.oneill 2

Lisfranc injury, homolateral, although limited evaluation on non weight bearing exam.

Kevin Reger 2

Widening of the Lisfranc joint with lateral displacement of the 2nd through 5th metatarsals. These findings are concerning for acute Lisfranc injury. Recommend orthopedic consult.

jowhite 2

Possible widening of the interval between the first and second metatarsal bases. Lucency at the anteriorlateral cuboid, suspicious for fracture. Additional fragment between the second and third metatarsal bases, concerning for avulsion. Findings concerning for Lisfranc fracture dislocation. CT could further assess.

Robert Janiszewski 2

Acute fracture at the medial base of the third metatarsal with xx displacement.

Slight offset of the 2nd metatarsal base with the middle cuneiform with lateral deviation of the metatarsal, concerning for lisfranc ligamentous injury. Questioned cortical irregularity of the antero-lateral aspect of the medial cuneiform may represent associated avulsion fracture.

Questioned osseous fragment between the distal lateral cuneiform and the base of the 4th metatarsal may represent fracture fragment.

Recommend CT to further characterize.

Erik Larsen 2

Widening of the medial aspect of the 2nd TMT joint concerning of an acute lisfranc injury. CT of the foot is recommended for further evaluation.

Wilson Ford 2

Widening of the lisfranc interval with likely small non-displaced fractures of the intermediate cuneiform and 2nd proximal metatarsal. Findings are concerning for acute Lisfranc injury. Recommend further evaluation with CT or MRI.

Keng Moua 2

Widening of the lisfranc joint concerning for lisfranc injury. Recommend CT.

Nanditha Guruvaiah Sridhara 2

Acute minimally displaced fractures of the base of the second and third metatarsals with mild widening of the lisfranc interval and lateral subluxation of the second metatarsal; indicative of acute lisfranc fracture/subluxation.

runail.ratnani 2

lis

Geeth Kondaveeti 2

Joint space widening between the bases of the 1st and 2nd metatarsals with alignment concerning for Lisfranc injury.

atom 2

There is subluxation of the 2nd and 3rd metatarsal bone with corresponding articular surface. Findings concerning for Lisfranc injury.

benjamin.heigle 2

Homolateral lisfranc injury.

brian.padilla 2

There is a Lisfranc fracture resulting in homolateral dislocation. There is generalized soft tissue edema.

stephen.klaassen 2

Three radiographic views of the left foot are provided.

The AP view demonstrates mild malalignment of the second metatarsal relative to the middle cuneiform with widening of the Lisfranc joint. A true measurement is not able to be provided with the given software. There is minimal dorsal displacement of the second metatarsal. Osseous mineralization is normal. A radiographic C-sign is present about the talus and calcaneus on the lateral view. No talar beaking is present.

There is osseous fusion of the left fifth distal and middle phalanx.

Mild soft tissue edema of the left foot is present.

Impression:
1. Mild malalignment of the second metatarsal relative to the middle cuneiform and widening of the Lisfranc jiont may represent a Liz Franc ligamentous injury. Given the subtle findings on this radiograph, MRI of the foot is recommended.
2. Radiographic C-sign on the lateral view could represent talocalcaneal coalition. If there is clinical concern, CT of the foot is recommended.

chin.wells 2

Lisfranc injury

Jessica Burris 2

c/f lisfranc rec standing view or ct

jay.yang 2

Lisfranc injury with lateral subluxation of the 2nd-5th TMT joints

diogojorge.vidalsilva 2

gwennan.plouzek 2

Mild widening between the intermediate cuneiform and the second metatarsal head, suggestive of lis franc injury.

Bach Le 2

lisfranc

abby-reutzel 2

Widening and malalignment of the LisFranc joint

Call Preparation

Prepare for call efficiently with interactive cases, sample reports, and annotated images.

1,400+ cases  91.25 CME

Call Simulator

   Neuro CT

250 cases

  Neuro MRI

146 cases

   Peds Radiographs

372 cases

   MSK Radiographs

281 cases

   Chest CT

84 cases

   Chest Radiographs

97 cases

   KUB

43 cases

   Body CT

140 cases

   Ultrasound

75 cases

Call Simulator

• Shuffle cases from our courses to simulate the mix of a call shift.
• Submit your own report before reviewing the case write-up.

Neuro Fellowship

Reviews of neuro topics with clinical pearls, differentials, and in-depth discussions.

131 cases  13.1 CME

   Brain Tumors

105 cases

   Neurodegenerative

13 cases

   Congenital Hearing Loss

13 cases

Call Preparation

   Neuro CT

250 cases

   Neuro MRI

146 cases

   Peds Radiographs

372 cases

   MSK Radiographs

281 cases

   Ultrasound

75 cases

   Chest CT

84 cases

   Chest Radiographs

97 cases

   Body CT

127 cases

   KUB

43 cases

Neuro Fellowship

   Brain Tumors

105 cases

   Neurodegenerative

13 cases

Call Simulator

• Shuffle cases from our courses.
• Submit your own report.

CME

• Earn up to 91 CME.
• Claim your CME to receive a certificate.

Call Simulator

• Shuffle cases from our courses to simulate the mix of a call shift.
• Submit your own report before reviewing the case write-up.

CME

• Earn up to 91 CME by completing cases in our radiology courses.
• Claim your CME to receive a certificate.

On Call

Quick references created specifically to help while on call.

  Peds Normals by Age

Reference database of normal imaging from birth to age 16

   Incidental Findings

Summary of consensus guidelines for managing incidental CT findings

   Media Index

Index of select illustrations & videos from our courses

  Neuro CT Mimics

Visual reference for common mimics of pathology on CT

On Call

  Peds Normals by Age

Reference database of normal imaging from birth to age 16

   Incidental Findings

Summary of consensus guidelines for managing incidental CT findings

   Media Index

Index of select illustrations & videos from our courses

  Neuro CT Mimics

Visual reference for common mimics of pathology on CT

Anatomy

Labelled radiographs and CT/MRI series teaching anatomy with a level of detail appropriate for medical students and junior residents.

   Pelvis

Pelvic MRI anatomy

   Chest

Chest radiograph & CT anatomy

   Body

Abdominal CT anatomy

   Cardiac

Cardiac CT anatomy

   Brain

Brain & calvarial anatomy on CT/MRI

   Cranial Nerves

Cranial nerves on MRI

   Shoulder

Shoulder MRI anatomy

   Knee

Knee MRI anatomy

   Temporal Bone

Resident/fellow-level anatomy

Anatomy

   Pelvis

Pelvic MRI anatomy

   Chest

Chest radiograph & CT anatomy

   Body

Abdominal CT anatomy

   Cardiac

Cardiac CT anatomy

   Brain

Brain & calvarial anatomy on CT/MRI

   Cranial Nerves

Cranial nerves on MRI

   Shoulder

Shoulder MRI anatomy

   Knee

Knee MRI anatomy

   Temporal Bone

Resident/fellow-level anatomy

Neuro Courses

Includes our call preparation neuro courses (Neuro CT and Neuro MRI) and our neuro fellowship courses.

   Neuro CT

250 cases

  Neuro MRI

146 cases

   Brain Tumors

105 cases

   Neurodegenerative

13 cases

   Congenital Hearing Loss

Coming soon

Neuro Courses

   Neuro CT

250 cases

   Neuro MRI

146 cases

   Brain Tumors

105 cases

   Neurodegenerative

13 cases

  Congenital Hearing Loss

Coming soon

CME

• Claim your CME to receive a certificate.

Call Simulator

• Shuffle cases from our courses to simulate the mix of a call shift.
• Submit your own report before reviewing the case write-up.

CME

• Earn up to 91 CME by completing cases in our radiology courses.
• Claim your CME to receive a certificate.

   Neuro CT

250 cases

   Neuro MRI

146 cases

   Peds Radiographs

372 cases

   MSK Radiographs

281 cases

   Ultrasound

75 cases

   Chest CT

84 cases

   Chest Radiographs

97 cases

   Body CT

140 cases

   KUB

43 cases

Call Simulator

• Shuffle cases from our courses to simulate the mix of a call shift.
• Submit your own report before reviewing the case write-up.

CME

• Earn up to 91 CME by completing cases in our radiology courses.
• Claim your CME to receive a certificate.