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Dislocation of the patella

Also known as Patella Dislocation, Dislocated Patella, and Patellar Luxation

Luxating patella (or trick knee, subluxation of patella, floating patella, or floating kneecap) is a condition in which the patella, or kneecap, dislocates or moves out of its normal location.

Source: Wikipedia

What are the symptoms?

Within all the people who go to their doctor with dislocation of the patella, 90% report having knee pain, 22% report having knee swelling, and 12% report having knee stiffness or tightness. The symptoms that are highly suggestive of dislocation of the patella are knee pain, knee swelling, and knee stiffness or tightness, although you may still have dislocation of the patella without those symptoms.


What might my doctor prescribe?

Common Tests and Procedures

Patients with dislocation of the patella often receive radiographic imaging procedure, plain x-ray, physical therapy exercises, application of splint, magnetic resonance imaging, arthroscopy, treatment; fracture or dislocation of lower extremity (other than hip or femur) and orthopedic casting .

Common Medications

The most commonly prescribed drugs for patients with dislocation of the patella include propofol, cefoxitin, ketamine, tetracycline, thyroid (usp) (armour thyroid), atropine (uaa) and acetaminophen / tramadol .

Who is at risk?

Groups of people at highest risk for dislocation of the patella include age 5-14 years age 15-29 years. On the other hand, age 60-74 years, age 1-4 years, and age < 1 years almost never get dislocation of the patella.

Age

< 1 years
0.0x
1-4 years
0.0x
5-14 years
2.7x
15-29 years
2.6x
30-44 years
0.9x
45-59 years
0.5x
60-74 years
0.0x
75+ years
0.1x

Sex

Male
1.0x
Female
1.0x

Race/Ethnicity

Black
1.2x
Hispanic
0.8x
White
1.0x
Other
1.3x
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