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Case Reports in Medicine
Volume 2013, Article ID 746472, 6 pages
Case Report

Patellar Osteoid Osteoma as a Cause of Anterior Knee Pain in Adolescents: A Case Report and Literature Review

1Department of Orthopaedics and Traumatology, Istituto Chirurgico Ortopedico Traumatologico (ICOT), Via Faggiana 1668, 04100 Latina, Italy
2Department of Orthopaedics and Traumatology, Sapienza University of Rome, ICOT, Via Faggiana 1668, 04100 Latina, Italy
3Department of Radiology, Istituto Chirurgico Ortopedico Traumatologico (ICOT), Via Faggiana 1668, 04100 Latina, Italy
4Department of Orthopaedics, University of Rome Tor Vergata, Via del Politecnico 1, 00133 Rome, Italy

Received 15 January 2013; Accepted 11 February 2013

Academic Editor: Michael G. Irwin

Copyright © 2013 Claudio Chillemi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Anterior Knee Pain (AKP) is an important cause of complaint in adolescents which can suggest many possible diseases. Scientific literature concerning this complex symptom is wide and diversified. We report a rare case of patellar osteoid osteoma which affected a thirteen-year-old female who had suffered from anterior left knee pain for almost six months. The diagnosis was suspected from an accurate anamnesis, a careful clinical examination, and confirmed by imaging. Several minimally invasive techniques can be employed to treat osteoid osteoma. However, we consider CT-guided percutaneous drilling the safest and most effective procedure in case of patellar location. Despite its rarity, patellar osteoid osteoma ranges in the differential diagnosis for all patients suffering from AKP.