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Related Experiment Videos

Irreducible posterolateral elbow dislocation. A case report.

M Greiss1, R Messias

  • 1Robert Jones & Agnes Hunt Orthopedic Hospital, Oswestry, United Kingdom.

Acta Orthopaedica Scandinavica
|August 1, 1987
PubMed
Summary
This summary is machine-generated.

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Posterolateral elbow dislocations rarely resist closed reduction. This occurs when the radial head gets trapped in a buttonhole tear of the lateral collateral ligament and capsule.

Area of Science:

  • Orthopedic Surgery
  • Traumatology
  • Elbow Biomechanics

Background:

  • Posterolateral elbow dislocation is a common injury.
  • Closed reduction is the standard initial treatment.
  • Rarely, closed reduction may fail.

Observation:

  • A prominent radial head was noted.
  • The radial head was caught in a buttonhole tear.
  • The tear involved the lateral collateral ligament and capsule.

Findings:

  • The buttonhole tear of the lateral collateral ligament and capsule impedes closed reduction.
  • The prominent radial head is a key indicator of this specific entrapment.
  • This mechanical block necessitates alternative treatment strategies.

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Implications:

  • Understanding this rare complication is crucial for orthopedic surgeons.
  • Prompt recognition of the buttonhole tear mechanism aids in successful treatment.
  • This finding may influence future management protocols for complex elbow dislocations.