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Vertical patellar dislocation: a case report.

Alasdair R Corfield1, James Stevenson

  • 1Accident and Emergency Department, Crosshouse Hospital, Kilmarnock KA2 0BE, Scotland. alasdair.corfield@ntlworld.com

European Journal of Emergency Medicine : Official Journal of the European Society for Emergency Medicine
|May 29, 2004
PubMed
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Vertical patellar dislocation, a rare injury, typically requires general anesthesia for reduction. This case demonstrates successful non-anesthetic reduction of a vertically dislocated and impacted patella, offering a less invasive treatment option.

Area of Science:

  • Orthopedic Surgery
  • Traumatology
  • Knee Biomechanics

Background:

  • Vertical patellar dislocation is an uncommon injury.
  • Previous literature indicates a need for general anesthesia and potentially open reduction for patellar dislocation.
  • Patellar dislocations can occur through various mechanisms, with vertical axis rotation being rare.

Observation:

  • A case of vertical patellar dislocation with impaction into the femoral intercondylar notch following minor trauma.
  • The patient presented with a rare type of patellar malalignment.
  • Imaging confirmed the patella's unusual position within the knee joint.

Findings:

  • Successful closed reduction of the vertically dislocated patella was achieved.
  • Reduction was accomplished without the need for general anesthesia.

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  • The impacted patella was successfully repositioned into the trochlear groove.

    • Implications:

    • This case suggests that non-anesthetic reduction may be feasible for certain vertical patellar dislocations.
    • Minimally invasive techniques could be considered for managing this rare injury.
    • Further investigation into the biomechanics and management of vertical patellar dislocations is warranted.