Medial patellar plica
Citation, DOI & article data
The medial patellar plica is one of the synovial plicae of the knee.
It is a fold of synovium and thought to represent embryologic remnants. It is considered the most symptomatic of all plicae.
The Sakakibara arthroscopic classification scheme is one used for the classification of medial patellar plicae:
- type A: consists of a cordlike elevation in the synovial wall
- type B: has a shelflike appearance but does not cover the anterior surface of the medial femoral condyle
- type C: large with a shelflike appearance and covers the anterior surface of the medial femoral condyle
- type D: plica has a central defect (fenestrated plica)
- T2/PD: perhaps best seen on an axial image of an arthrographic study as a small band extending from the medial aspect of the knee joint
- 1. Lee PYF, Nixion A, Chandratreya A, et al. Synovial Plica Syndrome of the Knee: A Commonly Overlooked Cause of Anterior Knee Pain. (2017) Surgery journal (New York, N.Y.). 3 (1): e9-e16. doi:10.1055/s-0037-1598047 - Pubmed
- 2. Roberto García-Valtuille, Faustino Abascal, Luis Cerezal, et al. Anatomy and MR Imaging Appearances of Synovial Plicae of the Knee1. (2002) RadioGraphics. 22 (4): 775-84. doi:10.1148/radiographics.22.4.g02jl03775 - Pubmed
- 3. Griffith CJ, LaPrade RF. Medial plica irritation: diagnosis and treatment. (2008) Current reviews in musculoskeletal medicine. 1 (1): 53-60. doi:10.1007/s12178-007-9006-z - Pubmed