Abstracts Posters SICOT-SOF meeting Gothenburg 2010 _2_

Poster
Topic: General Orthopaedics
Abstract number: 23057
70 LOOSE BODIES IN BAKER'S CYST -CASE REPORT
Jakub KOZDRYK, Muthukrishnan RAMAKRISHNAN, Paul GRIFFITHS
Wirral University Teaching Hospital, Wirral (UNITED KINGDOM)
Synovial osteochondormatosis is a rare benign condition characterized by formation
of one or more loose bodies by the synovial membrane in a joint, or occasionally in a
bursa or tendon sheat. We report an interesting case of a patient with 70 loose
bodies in large 7x2.5x2cm Baker’s cyst of the left knee. A 68 year old caucasian
male presented to the outpatient department complaining of increasing pain and
stiffness in his left knee over the last 3 years. Radiographs of his left knee showed
moderate to severe degenerative changes involving the patello-femoral and medial
joint compartment. In addition to osteoarthritic changes extensive calcific foci within
the posterior aspect of the knee joint where noted. Ultrasonographic appearance was
suggestive of synovial osteochondromatosis within a baker cyst and the mass
appeared to originate form gastrocnemus, semimembranosus bursa. The patient
underwent a routine total knee replacement and through a small posterio-medial
incision the popliteal cyst was exposed and 70 loose bodies were removed. Our
patient made an unremarkable recovery and was discharged on the 4th day post-op.
To our knowledge such a high number of loose bodies confined to Bakers’s cyst has
never previously been described.
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