title: Arthroscopic Excision of Solitary Intra-articular Osteochondroma of the Knee.
abstract: Osteochondroma is the most common benign tumor of the growing bone commonly involving the knee joint region. It often involves the metaphysis of the long bone, occurring extra-articularly. In spite of this, solitary intra-articular osteochondroma has rarely been reported in the literature. A 41-year-old man presented with diffuse pain and discomfort of the left knee for over 2 months. Clinical examination revealed a bony prominence involving the superolateral aspect of the left distal femur. Diagnostic evaluation involved radiography, magnetic resonance imaging, and a diagnostic arthroscopy, which showed features of an intra-articular osteochondroma in the left distal femur. Arthroscopic excision of the solitary intra-articular osteochondroma resulted in a complete relief of symptoms and return to full competitive activities. No recurrence of symptoms occurred during the one year of follow-up. Solitary intra-articular osteochondroma of the knee is an unusual case, which can be successfully managed with arthroscopy.
authors.affiliation: Department of Orthopedic Surgery, Inje University Ilsan Paik Hospital, Goyang, Korea.
authors.forename: Jong In
authors.initials: JI
authors.lastname: Kim
authors.forename: Jae Ho
authors.initials: JH
authors.lastname: Kwon
authors.forename: Yong Jee
authors.initials: YJ
authors.lastname: Park
authors.forename: Vivian R
authors.initials: VR
authors.lastname: D'Almeida
authors.forename: Shaishav M
authors.initials: SM
authors.lastname: Soni
authors.forename: Kyung Wook
authors.initials: KW
authors.lastname: Nha
keywords: Arthroscopy; Intra-articular; Knee; Osteochondroma