Question

What is the diagnosis and reduction technique for annular ligament displacement (previously radial head subluxation) commonly known as "nursemaid's elbow"?

A) Diagnosis: Clinical assessment; Reduction: Supination and flexion maneuver
B) Diagnosis: X-ray imaging; Reduction: Immobilization and rest
C) Diagnosis: Blood tests; Reduction: Corticosteroid injections
D) Diagnosis: MRI scan; Reduction: Surgical intervention

Answer 1

The diagnosis of annular ligament displacement is usually made through clinical assessment, and the reduction technique is generally a supination and flexion maneuver of the forearm.

Step-by-step explanation:

The diagnosis and reduction technique for annular ligament displacement, also known as radial head subluxation or nursemaid's elbow, is: A) Diagnosis: Clinical assessment; Reduction: Supination and flexion maneuver. The condition is often diagnosed based on a clinical assessment rather than through imaging, as the displacement is not typically seen on an X-ray. If the radial head subluxation is suspected, the commonly used reduction technique involves the supination of the forearm, followed by flexion of the elbow. This maneuver aims to slide the head of the radius back under the annular ligament.

The radial collateral ligament is an intrinsic ligament on the lateral side of the elbow. It arises from the lateral epicondyle of the humerus to merge with the annular ligament, circling the radius's head and allowing for rotation of the radius at the proximal radioulnar joint during pronation and supination of the forearm.