COTRCollaborative Orthopedic Trauma Research Group
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Research

Research lane 01

Clinical Outcomes

Studies of what happens to patients after orthopaedic injury and treatment: recovery, complications, and how practice varies. The work includes weight bearing after pelvic ring fixation, hip fracture outcomes across the pandemic, review articles, and case reports.

Complication-free survival by arm, with censored follow-up. Illustrative data.
Publications
9
Presentations
8

Guiding questions

What this lane asks

  1. Recovery

    When can weight bearing advance after pelvic ring fixation without compromising the result?

  2. Complications

    How did hip fracture outcomes change before, during, and after the pandemic?

  3. Cases

    What do delayed or unusual presentations teach about diagnosis and management?

Selected work

Key publications

Journal Article

Calcaneus Fractures: A Review of Management, Treatment, and Recent Advances

Brian A Schneiderman, Bradley A Carlson, Joey P Johnson, Joseph G Elsissy

Journal of the American Academy of Orthopaedic Surgeons

Calcaneus fractures remain challenging fractures that are prone to complications. Surgery was previously restricted only to those with soft-tissue envelopes amenable to the extensile lateral approach. However, with the development of the sinus tarsi approach and other percutaneous techniques, more prompt surgical interventions with lower complication rates have become possible. Restoration of hindfoot morphology and facet congruity are the primary goals of surgery. Complications including posttraumatic subtalar arthritis, infection, wound dehiscence, and malunion can be minimized with deliberate treatment decisions.

Journal Article

Pelvic Ring Injuries: Stable or Not?

Joseph G. Elsissy, David E. Ruckle, Christopher LeBrun, Joey P. Johnson

Journal of the American Academy of Orthopaedic Surgeons

Pelvic ring injuries occur in varying severity and in vastly different patient demographics. Knowledge regarding which of these injuries require surgical intervention and which can be managed nonsurgically continues to evolve. Previous studies have shown validated criteria for sacral fractures and the posterior ring, explored the role of examination under anesthesia, and other forms of dynamic imaging. Although there is substantial information available, a comprehensive synthesis of this information is lacking. This article provides a comprehensive review of radiographic markers suggestive of stability, discusses treatment strategies, and proposes a treatment algorithm that is easily understood and applicable to not only those with a trauma background but also the general orthopaedic surgeon who will see these injuries frequently while on call.

Credited on this lane

Investigators & contributors

Publications

2026, 1 publication

2025, 1 publication

2024, 1 publication

2023, 1 publication

2020, 1 publication

Show 4 more publications

2020, 1 publication

2019, 3 publications

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Presentations

Podium presentation · 2025

Elevated Coagulopathy and Inflammation in Vertical Shear Pelvic Fractures

Sultan Baz, Reem Sarsour, Brian A. Schneiderman, Dr. Joseph Elsissy

OtherColton, CA

Poster presentation · 2025

Variability in Interventional Radiology Consultation Rates Across Young-Burgess Classification of Pelvic Fracture Patterns

Dr. Joseph Elsissy

OtherColton, CA

Podium presentation · 2024

A Shift toward Earlier Weight Bearing after Fixation of Pelvic Ring Injuries: An OTA Survey

Dr. Joseph Elsissy

OtherLoma Linda, CA

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Poster presentation · 2019

Management of Myxoid Liposarcoma: A Survey of the Members of the Connective Tissue Oncology Society

Dr. Joseph Elsissy

OtherLoma Linda, CA

Poster presentation · 2019

Short Tau Inversion Recovery Magnetic Resonance Imaging for Staging and Screening in Myxoid Liposarcoma

Dr. Joseph Elsissy

OtherLoma Linda, CA

Poster presentation · 2018

Effect of Body Mass Index (BMI) on Outcomes of Patients with Bone Tumors Who Undergo Endoprosthetic Joint Reconstruction

Dr. Joseph Elsissy

OtherRome, Italy

Poster presentation · 2018

Management of Myxoid Liposarcoma: A Survey of the Members of the Connective Tissue Oncology Society

Dr. Joseph Elsissy

OtherRome, Italy

Poster presentation · 2018

Short Tau Inversion Recovery Magnetic Resonance Imaging for Staging and Screening in Myxoid Liposarcoma

Dr. Joseph Elsissy

OtherRome, Italy

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