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Imaging of Patellofemoral Instability.
Patellar instability is a broad term that encompasses patellar dislocation, patellar subluxation, and patellar instability. Although both functional and anatomic considerations contribute to symptoms of patellar instability, the most important are thought to be patella alta, trochlear dysplasia, and lateralization of the tibial tubercle. In patients with a history suspicious for prior patellar dislocation, careful evaluation of MRI and radiographic studies can reveal characteristic findings. The most common methods to address patellofemoral instability are medial patellofemoral ligament reconstruction and tibial tubercle osteotomy with either anteromedialization or medialization. Less commonly trochleoplasty is indicated as well. Patients may be treated with one of or a combination of these techniques, each of which has specific indications and complications.
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Related Subject Headings
- Patellofemoral Joint
- Patellar Dislocation
- Orthopedics
- Ligaments, Articular
- Knee Joint
- Joint Instability
- Humans
- 4201 Allied health and rehabilitation science
- 3202 Clinical sciences
- 1106 Human Movement and Sports Sciences
Citation
![Journal cover image](https://secure.syndetics.com/index.aspx?isbn=/lc.gif&issn=1556-228X&client=dukeuniv)
Published In
DOI
EISSN
ISSN
Publication Date
Volume
Issue
Start / End Page
Related Subject Headings
- Patellofemoral Joint
- Patellar Dislocation
- Orthopedics
- Ligaments, Articular
- Knee Joint
- Joint Instability
- Humans
- 4201 Allied health and rehabilitation science
- 3202 Clinical sciences
- 1106 Human Movement and Sports Sciences