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BMC Musculoskeletal Disorders
Published in: BMC Musculoskeletal Disorders 1/2019

Open Access 01-12-2019 | Case report

A symptomatic cyamella in the popliteus tendon causing snapping knee: a case report and literature review

Authors: Shouwen Su, Yunxiang Lu, Yuxian Chen, Zhiyong Li

Published in: BMC Musculoskeletal Disorders | Issue 1/2019

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Abstract

Background

Cyamella,the sesamoid bones of the popliteus muscle, are rare in humans. Snapping knee is an uncommon problem which can be difficult to diagnose.

Case presentation

In this case, we report a 24-year-old male with snapping knee caused by symptomatic cyamella in the popliteus tendon. A large cyamella was identified upon surgery and was removed. Postoperatively, the patient had immediate relief of preoperative symptoms, and there were no signs of recurrence after 1 years of follow-up.

Conclusions

Although not previously suggested, symptomatic cyamella in the popliteus tendon should be considered as part of the differential diagnosis of the snapping knee.
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Metadata
Title
A symptomatic cyamella in the popliteus tendon causing snapping knee: a case report and literature review
Authors
Shouwen Su
Yunxiang Lu
Yuxian Chen
Zhiyong Li
Publication date
01-12-2019
Publisher
BioMed Central
Published in
BMC Musculoskeletal Disorders / Issue 1/2019
Electronic ISSN: 1471-2474
DOI
https://doi.org/10.1186/s12891-019-2882-8

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