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The femur is the body's longest and strongest bone spanning the thigh region. Its head articulates with the acetabulum of the hip bone to form the hip joint. A minor indentation on the medial side of the femoral head, called the fovea capitis, serves as the site of attachment for the ligament of the head of the femur. This weak ligament spans the femur and acetabulum and supports the hip joint. The narrowed region below the head is the neck of the femur. The inclination angle between the...

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Anterior Cruciate Ligament Transection and Synovial Fluid Lavage in a Rodent Model to Study Joint Inflammation and Posttraumatic Osteoarthritis

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Atraumatic Extra-articular Patellar Dislocation with Vertical Axis Rotation: A Case Study.

Andrew Higgins¹, Mahdi Yacine Khalfaoui¹

¹Department of Trauma & Orthopaedics, Central Manchester Teaching Hospitals.

Journal of Orthopaedic Case Reports

|June 15, 2016

Summary

This summary is machine-generated.

Vertical axis rotation in patellar dislocation is rare and can make reduction difficult. This case highlights that even atraumatic dislocations may require open reduction due to patellar malposition and soft tissue obstruction.

Keywords:

Patellar Reduction Patellar dislocation vertical axis rotation

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Published on: January 23, 2018

Area of Science:

Orthopedic Surgery
Sports Medicine
Traumatology

Background:

Acute patellar dislocation typically involves lateral displacement due to trauma.
Vertical axis rotation is a rare variant that complicates closed reduction.

Observation:

A 32-year-old male presented with an irreducible patellar dislocation after an atraumatic event.
Closed reduction attempts under sedation and nerve block failed.
Open reduction revealed a laterally dislocated and vertically rotated patella.

Findings:

The patella was in a lateral extra-articular position with vertical axis rotation.
Open reduction and medial patellar retinaculum repair were performed.
Post-reduction examination showed satisfactory patellar tracking.

Implications:

Atraumatic patellar dislocations with vertical axis rotation are exceedingly rare.
Closed reduction may be impossible, necessitating open reduction.
Prompt surgical intervention is crucial for irreducible patellar dislocations.