{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T15:24:49Z","timestamp":1777908289950,"version":"3.51.4"},"reference-count":37,"publisher":"SAGE Publications","issue":"2","license":[{"start":{"date-parts":[[2022,6,1]],"date-time":"2022-06-01T00:00:00Z","timestamp":1654041600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Journal of Dance Medicine &amp; Science"],"published-print":{"date-parts":[[2022,6]]},"abstract":"<jats:p>\n                    <jats:italic toggle=\"yes\">Introduction: Bone marrow signal abnormalities on magnetic resonance imaging (MRI) are common in athletes. However, few studies evaluate the MRI appearance of bone marrow in the feet of ballet dancers. Our study aims to describe the \u201cspotty bone marrow\u201d (SBM) pattern in the tarsal bones of a cohort of ballet dancers, establishing its prevalence, distribution, potential associations, and evolution.<\/jats:italic>\n                    <jats:italic toggle=\"yes\">Methods: Eighty-six MRIs of 68 ankles in 56 ballet dancers were retrospectively reviewed for marrow signal alterations, which were classified as focal or SBM (defined as patchy fluid-sensitive signal hyperintensity spanning more than one location or tarsal bone). When SBM involved the talus, its anatomic distribution in the bone and morphologic pattern were recorded. Additional osseous and soft tissue findings were documented. For subjects with more than one MRI of the same ankle, the SBM's evolution was monitored.<\/jats:italic>\n                    <jats:italic toggle=\"yes\">Results: Spotty bone marrow was identified in 44 ankles (65%). Spotty bone marrow was isolated to the talus (44%), present in all tarsal bones (25%), or distributed between the talus and one to three other tarsal bones (31 %). In the talus, The SBM involved the entire bone (65%), the neck and body (31 %), or the head and neck (4%). The SBM most commonly showed a random morphologic pattern (87%) but occasionally showed a peripheral predominance (13%). There was no statistically significant difference in the prevalence of other pathologies in ankles with and without SBM. In eight ankles with a follow-up MRI, the SBM worsened in one, remained stable in two, and improved in five ankles. None progressed to a stress fracture.<\/jats:italic>\n                    <jats:italic toggle=\"yes\">Conclusion: Spotty bone marrow is an MRI finding frequently encountered in ballet dancers. It is usually self-limiting and should not be misinterpreted as a more aggressive pathology.<\/jats:italic>\n                  <\/jats:p>","DOI":"10.12678\/1089-313x.061522e","type":"journal-article","created":{"date-parts":[[2022,3,14]],"date-time":"2022-03-14T21:07:44Z","timestamp":1647292064000},"page":"125-133","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":3,"title":["Spotty Bone Marrow: A Frequent MRI Finding in the Feet of Ballet Dancers"],"prefix":"10.1177","volume":"26","author":[{"given":"Natalia","family":"Gorelik","sequence":"first","affiliation":[{"name":"McGill University Health Center, Montreal, Quebec, Canada."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Bethany U.","family":"Casagranda","sequence":"additional","affiliation":[{"name":"2. Allegheny Health Network, Pittsburgh, Pennsylvania, USA."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Philip G.","family":"Colucci","sequence":"additional","affiliation":[{"name":"3. Hospital for Special Surgery, New York, New York, USA."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Julie L.","family":"Green","sequence":"additional","affiliation":[{"name":"4. Philadelphia Ballet, Philadelphia, Pensylvania, USA."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Johannes B.","family":"Roedl","sequence":"additional","affiliation":[{"name":"5. Thomas Jefferson University Hospital, Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, Pennsylvania, USA."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"William B.","family":"Morrison","sequence":"additional","affiliation":[{"name":"5. 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