Orthopedic Abstract Repository

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The Orthopedic Abstract Repository (OAR) is a free online site for abstracts related to the diagnosis and treatment of orthopedic conditions. 

We welcome all abstracts, both previously presented and “orphan” abstracts.

OAR Philosophy:  No research left behind!  Due to limits on number of abstracts accepted at professional meetings as well as the sheer volume of research that is missed by those unable to attend meetings, valuable studies are lost to the orthopedic community each year.  OAR provides a platform for accepted and “orphan” abstracts in a convenient, searchable database and allows the hard work of medical students, resident physicians, fellows, and attending physicians to be recognized. 

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Abstracts Submitted

Featured Abstracts

Open Reduction for AO/OTA 81-B3 (Hawkins 3) Talar Neck Fractures: The Natural Delivery Method

Summary: Fractures of the talar neck with subtalar and tibiotalar joint dislocation (AO/OTA 81-B3) represent a treatment challenge for the orthopaedic surgeon.  The magnitude of deformity and complexity of the pathoanatomy add to concerns for soft tissue embarrassment...

Biomechanical Comparison of a Novel Broad 3.5 mm Plate with Standard Small Fragment and Large Fragment Plates in a Comminuted Mid-Shaft Humerus Fracture Model

Introduction: This study compared the failure properties of a broad 3.5 mm plate with standard small fragment and large fragment plates used to secure length unstable humerii. Methods / Materials: Three constructs were tested, a nine-hole narrow 4.5-mm locking...

Negative Stress Examination Under Anesthesia Predicts Pelvic Ring Union without Displacement

Introduction: Injuries to the pelvic ring are commonly seen following high-energy trauma. The ideal method for determining pelvic ring stability is a controversial topic in the orthopaedic trauma literature. Static radiographs or CT scans may not reflect the degree of...

The Fallen Leaf Sign: Radiographic findings in Moore-type proximal tibial fracture dislocations

Introduction: The Moore classification of fracture dislocations of the knee remains relevant in identification of these injuries. Historic rates of neurovascular compromise and long-term prognosis are poorer than tibial plateau fractures. Correct identification of...

Early posteromedial incision does not increase wound complications or total operative time in AO/OTA 41 type C tibial plateau fractures

Introduction: The current recommendation for definitive treatment of displaced bicondylar tibial plateau fractures (AO/OTA 41C) is open reduction and internal fixation (ORIF) of both medial and lateral columns with dual plate fixation through two incisions. Use of a...

Radiographic failure of a calcium sulfate/calcium phosphate bone substitute in benign osseous lesions

Introduction: Benign osseous lesions are amenable to curettage of the lesion with grafting of the osseous defect for definitive management. Grafting materials include autogenous bone graft, allograft, or commercially available bone graft substitutes. Commonly used...

Percutaneous or Open Reduction of Closed Tibial Shaft Fractures during Intramedullary Nailing Does Not Increase Wound Complications, Infection or Nonunion Rates

Introduction: Diaphyseal tibia fractures are commonly treated with intramedullary devices. This technique is often performed with closed reduction maneuvers. Surgeons faced with difficulty can use percutaneous techniques to manipulate the fracture fragments, or...

Preplanning Safe Corridor Trajectory in Navigated Sacral Fixation: A Useful Technique for Learning Pelvic Navigation

Introduction: Instrumented navigation has been used to great success in spinal surgery to place implants safely into complex osseous corridors of the spine. Like the axial spine, the sacrum also has osseous corridors that can be used for implant placement in various...

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