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Ultrasonography

Ultrasonography

Ultrasonography is an imaging technique that uses high-frequency sound waves to visualize the body's internal structures. It is a non-invasive and safe procedure that does not involve the use of ionizing radiation, making it widely used in various medical fields. Ultrasonography is used to study heart function, blood flow in the neck or extremities, certain conditions such as gallbladder disease, and fetal growth and development.
During an ultrasonography procedure, a handheld device called...

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In Vitro Application of a Wireless Sensor in Flexion-Extension Gap Balance of Unicompartmental Knee Arthroplasty

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Radiological difficulty in identifying unicompartmental knee replacement dislocation.

Oruaro Adebayo Onibere¹, Iain Stevenson², Fraser Jonathan Gill³

¹Trauma and Orthopaedic Department, Dr Gray's Hospital, Elgin IV30 1SN, UK.

Radiology Case Reports

|August 23, 2017

Summary

This summary is machine-generated.

Dislocation of the mobile bearing in unicondylar knee replacement is a rare emergency department presentation. Prompt diagnosis is crucial, often requiring advanced imaging beyond plain radiographs.

Keywords:

Dislocation Radiographs Unicompartmental knee replacement

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Area of Science:

Orthopedic Surgery
Emergency Medicine
Radiology

Background:

Unicondylar knee replacement (UKR) is a common elective orthopedic surgery.
Presentations to the Emergency Department (ED) are infrequent.
ED staff may lack familiarity with UKR complications.

Observation:

Dislocation of the mobile bearing component (spacer) is a known UKR complication.
Patients with this complication initially present to the ED.
Radiological diagnosis can be challenging on plain radiographs.

Findings:

Accurate and prompt diagnosis is essential for appropriate patient management.
Identifying dislocated mobile bearings on plain radiographs presents a radiological challenge.
Advanced imaging, such as CT scans, may be necessary.

Implications:

ED physicians must be aware of this potential UKR complication.
Radiological interpretation requires careful attention to detail.
Timely advanced imaging can facilitate correct diagnosis and management of dislocated UKR components.