Abstract
It is considered that shelf syndrome mainly occurs in younger people and often in athletes. Shelf syndrome has rarely been reported in elderly people. Although shelf syndrome is rare in elderly people, it should be suspected whenever severe pain and a locked knee are present.
Highlights
The synovial plica of the knee joint is considered as a remnant of the septum which existed in the patellofemoral joint during fetal life [1]
We report three elderly patients with a medial synovial plica causing severe pain and locked knees
The difference between shelf syndrome in elderly patients and that in younger patients is that the former involves osteospur formation, which is a degenerative change in the patellofemoral joint, and degeneration and tearing of the shelf margin
Summary
The synovial plica of the knee joint is considered as a remnant of the septum which existed in the patellofemoral joint during fetal life [1].The synovial plica is classified into four distinct anatomical patterns: superior, medial, inferior and lateral. The synovial plica of the knee joint is considered as a remnant of the septum which existed in the patellofemoral joint during fetal life [1]. It is said that in medial patellar and suprapatellar plica, the symptom occur. Medial suprapatellar synovial plica is known as a ‘shelf ’ [1,2,3].
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