All posts by Chris Boisvert

PUBLISHED: Extended Focused Assessment with Sonography for Trauma (EFAST) Exam

Extended Focused Assessment with Sonography for Trauma (EFAST) Exam
UChicago Medicine

Daven Patel, MD, MPH
Resident Physician
Emergency Medicine

Kristin Lewis, MD, MA
Resident Physician
Emergency Medicine

Allyson Peterson, MD
Resident Physician
Emergency Medicine

Nadim Michael Hafez, MD
Assistant Professor of Medicine
Emergency Medicine

This video covers information related to the FAST exam, which evaluates the pericardial, hepatorenal, splenorenal, and suprapubic regions for free fluid in a trauma patient as well as the extended version, which includes an additional evaluation of the pleural spaces for a pneumothorax. It goes through probe selection, probe placement and image acquisition, image optimization, and pitfalls and pearls for the subxiphoid/subcostal, right upper quadrant, left upper quadrant, suprapubic, and pleural views.

PUBLISHED: Subtalar Arthrodesis for Post-Traumatic Subtalar Arthritis

Subtalar Arthrodesis for Post-Traumatic Subtalar Arthritis
Massachusetts General Hospital

Christopher W. DiGiovanni, MD
Chief of the Foot & Ankle Service
Vice Chair for Academic Affairs
Massachusetts General Hospital

Subtalar arthrodesis is currently the mainstay treatment option for the management of recalcitrant subtalar arthrosis.

The patient in this case is a 45-year-old male who developed post-traumatic arthritis of the subtalar joint 14 years following a work-related injury in which he sustained a comminuted, joint-depression type calcaneal fracture after a 10-foot fall from a ladder. Seven years after the initial injury, imaging prompted by progressive hindfoot pain during weight-bearing or following activity revealed progressive degeneration of the subtalar joint, for which he was treated with orthoses, corticosteroid injections, and arthroscopic debridement. After exhausting both conservative and minimally invasive treatment measures at 14 years post-injury, he finally elected to undergo subtalar arthrodesis.

This video article details the methods and techniques involved in subtalar arthrodesis. After an Ollier approach was used to expose the subtalar joint, the arthritic cartilage was removed and the subchondral plate was perforated. Finally, an autogenous bone graft was harvested from the proximal tibia and inserted into the joint space, and compression was achieved by two lag screws.

PREPRINT RELEASE: Ureteroscopy, Laser Lithotripsy, and Stent Replacement for an Obstructing Left Proximal Ureteral Stone with Forniceal Rupture

Ureteroscopy, Laser Lithotripsy, and Stent Replacement for an Obstructing Left Proximal Ureteral Stone with Forniceal Rupture

Ryan A. Hankins, MD
Assistant Professor of Urology
Specialty Director of Urology
MedStar Georgetown University Hospital

The patient in this case is a 76-year-old male who was admitted to the ER two weeks prior and was found to have an obstructing, 1-cm left proximal ureteral stone with a forniceal rupture. A left ureteral stent was placed, and he was started on antibiotics. In this video, Dr. Ryan Hankins at MedStar Georgetown University Hospital performs definitive management of the stone with a left ureteroscopy, laser lithotripsy, and stent replacement.

PREPRINT RELEASE: Endoscopic Stapedectomy

Endoscopic Stapedectomy
Bascom Palmer Eye Institute

C. Scott Brown, MD
Neurotology & Lateral Skull Base Surgery Fellow
University of Miami Miller School of Medicine

Michael E. Hoffer, MD
Professor of Otolaryngology and Neurological Surgery
University of Miami Miller School of Medicine

Endoscopic ear surgery can improve visualization of critical structures. In this video, Dr. Scott Brown performs an endoscopic stapedectomy for the treatment of conductive hearing loss. He explains his technique and the advantages afforded by adoption of the endoscope in ear surgery.

PREPRINT RELEASE: Temporal Bone Dissection (Cadaver)

Temporal Bone Dissection (Cadaver)
Cranial Access, Neuroanatomy, and ENT Surgery (CANES) Lab

C. Scott Brown, MD
Neurotology & Lateral Skull Base Surgery Fellow
University of Miami Miller School of Medicine

Cadaveric dissections of the temporal bone are a critical part of learning otologic surgery in residency. Dr. Scott Brown, neurotology fellow at the University of Miami, performs a step-by-step dissection of the temporal bone. He outlines key anatomical structures and describes safe and efficient techniques for these procedures.

PUBLISHED: Cubital Tunnel Release (Cadaver)

Cubital Tunnel Release

Asif M. Ilyas, MD
Professor of Orthopaedic Surgery
Program Director of Hand Surgery
Rothman Institute, Thomas Jefferson University

Cubital tunnel syndrome is a condition that affects the ulnar nerve as it crosses the medial elbow through the retrocondylar groove. It is the second most common compressive neuropathy, causing tingling and numbness in the ring and small fingers. In advanced cases of symptomatic cubital tunnel syndrome, weakness, altered dexterity, and atrophy of the intrinsic muscles of the hand may develop. Cubital tunnel syndrome can be treated with either a cubital tunnel release or an ulnar transposition. In this case, the former is demonstrated on a cadaveric arm using the mini-open technique.

PREPRINT RELEASE: Airway Equipment

Airway Equipment

Nicholas Ludmer, MD
Assistant Professor of Emergency Medicine
UChicago Medicine

Abdullah Hasan Pratt, MD
Assistant Professor of Emergency Medicine
UChicago Medicine

Stephen Estime, MD
Assistant Professor of Anesthesia and Trauma Critical Care
UChicago Medicine

In this video, Dr. Ludmer at UChicago Medicine describes the airway equipment that they have available for when a patient has an airway problem.

PREPRINT RELEASE: Airway Assessment for Trauma Patient

Airway Assessment for Trauma Patient

Nicholas Ludmer, MD
Assistant Professor of Emergency Medicine
UChicago Medicine

Abdullah Hasan Pratt, MD
Assistant Professor of Emergency Medicine
UChicago Medicine

Stephen Estime, MD
Assistant Professor of Anesthesia and Trauma Critical Care
UChicago Medicine

In this video, Dr. Ludmer at UChicago Medicine describes the airway assessment for a trauma patient.

PUBLISHED: Carpal Tunnel Release (Cadaver)

Carpal Tunnel Release (Cadaver)

Asif M. Ilyas, MD
Professor of Orthopaedic Surgery
Program Director of Hand Surgery
Rothman Institute, Thomas Jefferson University

Carpal tunnel syndrome (CTS) is the most common peripheral compression neuropathy and results in symptoms of numbness and paresthesia in the thumb, index finger, middle finger, and half of the ring finger. When CTS symptoms progress and can no longer be managed with nonoperative measures, carpal tunnel release (CTR) surgery is indicated.

In this case, Dr. Asif Ilyas at the Rothman Institute performs CTR surgery on a cadaveric arm via the mini-open CTR technique. A 2-cm longitudinal incision was placed directly over the carpal tunnel, the transverse carpal ligament was exposed and then released, and the wound was closed. Patients are typically sent home with instructions to use their hand immediately postoperatively, while avoiding strenuous use until the incision has healed. Splinting and therapy are not required postoperatively.


PREPRINT RELEASE: Robotic eTEP Retrorectus Rives-Stoppa Repair for Ventral Hernia

Robotic eTEP Retrorectus Rives-Stoppa Repair for Ventral Hernia
Alta Bates Summit Medical Center

Rockson C. Liu, MD, FACS
General Surgery, Epic Care, Alta Bates Summit Medical Center

In this case, Dr. Rockson Liu performs a robotic eTEP retrorectus Rives-Stoppa repair of an upper midline primary ventral hernia that was partially reducible but mostly incarcerated, and greater than 6 cm in a 63-year-old female. Robotic ports were placed directly into the retrorectus space. Using the crossover technique, the retrorectus spaces were combined with a preperitoneal bridge of the peritoneum. The defects were closed robotically, and a medium-weight, macroporous polypropylene mesh was placed within the retrorectus space.