Medial patellar retinaculum
Last revised by Joel Hng
on 16 Mar 2023
Citation, DOI, disclosures and article data
Citation:
Moodaley P, Hng J, Hacking C, et al. Medial patellar retinaculum. Reference article, Radiopaedia.org (Accessed on 12 Dec 2024) https://doi.org/10.53347/rID-54736
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rID:
54736
Article created:
26 Jul 2017,
Pereshin Moodaley
Disclosures:
At the time the article was created Pereshin Moodaley had no recorded disclosures.
View Pereshin Moodaley's current disclosures
Last revised:
16 Mar 2023,
Joel Hng
Disclosures:
At the time the article was last revised Joel Hng had no financial relationships to ineligible companies to disclose.
View Joel Hng's current disclosures
Revisions:
4 times, by
4 contributors -
see full revision history and disclosures
Systems:
Sections:
The medial patellar retinaculum is a fibrous expansion comprising of superficial and deep layers.
On this page:
Gross anatomy
The superficial layer originates from the lowest fibers of the vastus medialis muscle, sartorius and the medial collateral ligament. The deep layer has contributions from the medial patellofemoral ligament and fascial thickenings.
It inserts onto the medial aspect of the patellar ligament, patella and quadriceps tendon. From this insertion, it extends posteromedially to blend with the medial margin of the knee capsule and inferior surface of the medial tibial condyle.
It is an important stabilizer of the patella, through this firm medial tibial condyle attachment and resists lateral patellar dislocation 1,2,3.
Pathology
The medial patellar retinaculum is often partially or completely torn in lateral patellar dislocation 4. It is more commonly injured than the lateral patellar retinaculum.
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See also
Quiz questions
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References
- 1. Rethy Chhem, Etienne Cardinal. Guidelines and Gamuts in Musculoskeletal Ultrasound. ISBN: 9780471197553
- 2. John O'Neill. Musculoskeletal Ultrasound. ISBN: 9780387766102
- 3. Alimorad Farshchian M. D.. Farshchian's Orthopedic Regenerative Series. ISBN: 9781438988856
- 4. Starok M, Lenchik L, Trudell D, Resnick D. Normal patellar retinaculum: MR and sonographic imaging with cadaveric correlation. AJR Am J Roentgenol. 1997 Jun;168(6):1493-9. doi: 10.2214/ajr.168.6.9168713. PMID: 9168713.
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Articles:
Cases:
- Lateral patellar dislocation with characteristic bone bruises
- Transient lateral patellar dislocation
- Lateral patellar dislocation with osteochondral injury
- Lateral patellar dislocation
- Transient lateral patellar dislocation
- Transient lateral patellar dislocation
- Transient lateral patellar dislocation with chondral fracture
- Transient lateral patellar dislocation
- Knee ligaments (Gray's illustration)
- Patellar chondral avulsion fracture
- Transient lateral patellar dislocation
- Transient lateral patellar dislocation
- Medial patellofemoral ligament avulsion injury
- Transient lateral patellar dislocation
- Transient lateral patellar dislocation
- Patellar fracture
- Transient lateral patellar dislocation with osteochondral injury
- Soft tissue haemangioma - knee
- Transient lateral patellar dislocation
- Transient lateral patellar dislocation
Multiple choice questions:
Related articles: Anatomy: Lower limb
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hip joint
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hip bursae
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ankle joint
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