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Related Experiment Videos

Knee dislocations with intact PCL.

K D Shelbourne1, J Pritchard, A C Rettig

  • 1Methodist Sports Medicine Center, Indianapolis, Indiana.

Orthopaedic Review
|May 1, 1992
PubMed
Summary

Complete knee dislocations are serious injuries. This study presents rare cases where the posterior cruciate ligament (PCL) remained intact despite a complete knee dislocation, challenging previous assumptions.

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Area of Science:

  • Orthopedic Surgery
  • Traumatology
  • Sports Medicine

Background:

  • Complete knee dislocations are uncommon yet severe traumatic injuries.
  • These injuries typically involve extensive damage to knee ligaments and soft tissues.
  • Prior literature and clinical experience suggested a consistent association between complete dislocations and rupture of both the anterior cruciate ligament (ACL) and posterior cruciate ligament (PCL).

Observation:

  • This report details three distinct cases of complete knee dislocation.
  • In all presented cases, diagnostic imaging confirmed the integrity of the posterior cruciate ligament (PCL).

Findings:

  • The findings challenge the established belief that complete knee dislocations invariably involve PCL rupture.
  • These cases demonstrate that the PCL can remain intact in the setting of a complete knee dislocation.

Implications:

  • This challenges current diagnostic and treatment paradigms for complete knee dislocations.
  • Further research is warranted to understand the mechanisms and clinical outcomes associated with PCL-sparing complete knee dislocations.
  • These findings may influence future surgical and rehabilitation protocols for knee dislocations.

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