Osteochondritis Dissecans in Pediatric Knee Systems

Osteochondritis dissecans (OCD) of the knee is a focal disease of the subchondral bone and overlying cartilage that predominantly affects children and adolescents. It is characterised by the progressive separation of an osteochondral fragment, which may lead to instability, pain and joint dysfunction. Although the aetiology remains multifactorial, mechanical overload and compromised vascular supply to the epiphyseal cartilage are recognised contributors. Clinically, patients commonly present with activity-related knee pain, intermittent effusion and mechanical symptoms such as locking or catching. Radiological assessment—including plain radiography and magnetic resonance imaging (MRI)—enables precise staging of lesion stability and fragment vitality, informing treatment decisions. Management strategies range from non-operative load modification and physiotherapy in stable lesions to surgical interventions in unstable or refractory cases. Surgical options encompass fragment fixation, microfracture, autologous chondrocyte implantation and osteochondral grafting, each tailored to lesion size, patient age and skeletal maturity. Emerging biological and tissue-engineering techniques aim to enhance repair quality and reduce donor site morbidity, while long-term follow-up highlights the importance of early intervention to mitigate the risk of premature osteoarthritis.

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Osteochondritis Dissecans in Pediatric Knee Systems publication trend

The graph below shows the total number of articles in osteochondritis dissecans in pediatric knee systems across all publications each year (not limited to Nature Index journals).

Technical terms

Osteochondritis Dissecans: A disorder of subchondral bone leading to separation of an osteochondral fragment.

Subchondral bone: The layer of bone just beneath the cartilage surface of a joint.

Autologous chondrocyte implantation (ACI): A two-stage procedure in which a patient’s own chondrocytes are expanded in vitro and re-implanted into a cartilage defect.

Hydroxyapatite/poly-L-lactate acid (HA/PLLA) pins: Bioabsorbable fixation devices used to secure osteochondral fragments.

References

1. Chondrocyte Isolation from Loose Bodies—An Option for Reducing Donor Site Morbidity for Autologous Chondrocyte Implantation. International Journal of Molecular Sciences (2023).
2. Osteochondritis Dissecans of the Knee Associated With Mechanical Overload. The American Journal of Sports Medicine (2024).
3. Clinical Outcomes and Return-to-Sport Rates following Fragment Fixation Using Hydroxyapatite/Poly-L-Lactate Acid Threaded Pins for Knee Osteochondritis Dissecans: A Case Series. Biomimetics (2024).