Discoid meniscus, a rare cause of monoarthritis in children: case report and  literature review

Razzaghi, Abdolsalam; Ayati Firoozabadi, Mohammad; Mortazavi, Seyed Mohammad Javad

doi:10.22034/ijos.2024.476027.1106

Discoid meniscus, a rare cause of monoarthritis in children: case report and literature review

Document Type : Case Report

Authors

abdolsalam razzaghi ¹

mohammad Ayati Firoozabadi ²

Seyed Mohammad Javad Mortazavi ³

¹ Joint Reconstruction Research Center, Tehran University of Medical Sciences, Tehran, Department of Orthopedic Surgery, Imam Khomeini Hospital Complex

² Joint Reconstruction Research Center, Tehran University of Medical Sciences Department of Orthopedic Surgery, Imam Khomeini Hospital Complex

³ Joint Reconstruction Research Center, Tehran University of Medical Sciences, Tehran Department of Orthopedic Surgery, Imam Khomeini Hospital Complex

https://doi.org/10.22034/ijos.2024.476027.1106

Abstract

Introduction: Knee pain is one of the most common musculoskeletal complaints in children and adolescents. There are relatively wide differential diagnoses for knee monoarthritis in children. One of the causes of knee pain and swelling is the discoid meniscus which as the most common congenital anomaly of the knee, can have a wide range of symptoms such as pain, swelling, limited range of motion, and mechanical symptoms including clicking, snapping, popping, and locking of the knee. Therefore, it is necessary to accurately understand this disease and distinguish it from other diseases that show these symptoms. The purpose of this study is to introduce a disease with chronic knee pain and swelling with the diagnosis of discoid meniscus to show that a strong clinical view is necessary to be able to diagnose this disease in children, especially in cases that occur at a younger age.
Case presentation : The patient is a 6-year-old girl who presented with pain, swelling, and limited range of motion in the left knee since 4 years ago, and during this period, she was treated with the diagnosis of Juvenile Rheumatoid arthritis(JRA). Due to the lack of response to treatment and after more examination and consultation with the knee surgeon, the discoid meniscus was diagnosed as her real disease discoid meniscus was diagnosed as his real disease. The patient underwent arthroscopic saucerization and lateral meniscus repair.
conclusion: According to this study, discoid meniscus should be considered as an important, rare differential diagnosis in children presenting with knee pain and swelling.

Keywords

knee

discoid meniscus

monoarthritis

Subjects