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Symptomatic bilateral medial discoid meniscus treated with arthroscopic meniscal remodeling: clinical case
F Chico-Carpizo1, S Arauz de Robles1, J Alonso-Hernández2
1Unidad de Hombro, Clínica CEMTRO, Madrid, España.
Abstract:
Medial discoid meniscus is a rare entity with a reported incidence of 0.12 to 0.3%, although the real incidence may be greater because not all the patients are symptomatic. Like lateral discoid menisci, medial discoid menisci are prone to degeneration that may prompt the presence of mechanical symptoms at early age. We present the case of a 14 year old male patient with bilateral knee symptoms of insidious onset without a traumatic event. Magnetic resonance revealed bilateral medial discoid menisci. Arthroscopic medial meniscus remodelling was performed in the right knee and, three months later, in the left knee, due to limitating mechanical symptoms. At the latest follow up -6 months for the right knee, 3 months for the left knee-, the patient resumed his sports activities.
Insights
Bilateral medial discoid menisci, a rare condition, can cause early-onset knee symptoms. Arthroscopic surgery effectively treated a teenage patient, allowing a return to sports activities.
Area of Science:
- Orthopedics
- Sports Medicine
- Radiology
Background:
- Medial discoid meniscus is a rare congenital knee anomaly.
- It is often asymptomatic but can lead to degeneration and mechanical symptoms.
- Incidence is reported as 0.12-0.3%, potentially higher due to undiagnosed cases.
Observation:
- A 14-year-old male presented with bilateral insidious knee pain.
- Magnetic resonance imaging confirmed bilateral medial discoid menisci.
- Symptoms included mechanical knee issues, impacting daily activities.
Findings:
- Arthroscopic medial meniscus remodelling was performed bilaterally.
- The patient experienced symptom resolution post-surgery.
- Successful return to sports activities was achieved at 6-month follow-up.
Implications:
- Early diagnosis and surgical intervention can restore function in young patients.
- Medial discoid meniscus should be considered in adolescent knee pain evaluations.
- Arthroscopic remodelling offers a viable treatment for symptomatic medial discoid menisci.
