{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,28]],"date-time":"2026-04-28T15:43:36Z","timestamp":1777391016033,"version":"3.51.4"},"reference-count":23,"publisher":"SAGE Publications","issue":"8","license":[{"start":{"date-parts":[[2009,8,1]],"date-time":"2009-08-01T00:00:00Z","timestamp":1249084800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Foot Ankle Int."],"published-print":{"date-parts":[[2009,8]]},"abstract":"<jats:sec><jats:title>Background:<\/jats:title><jats:p> Osteochondral lesions of the talus (OLT) are relatively uncommon but may be a cause of significant pain and disability. Although the majority of patients have an osteochondral lesion of the talus that is unilateral, bilateral involvement has been reported in 10% to 25% of cases. In addition, factors that cause one side to be symptomatic and the contralateral side to be asymptomatic have never been evaluated. <\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and Methods:<\/jats:title><jats:p> A database containing all patients at our institution with an OLT has been maintained for the past 23 years. This was reviewed and patients with bilateral involvement identified. A chart review was performed to determine location and size of the OLT, which were symptomatic, associated with trauma, and required surgery. <\/jats:p><\/jats:sec><jats:sec><jats:title>Results:<\/jats:title><jats:p> Between 1984 and 2007, 526 patients with an OLT were seen. Fifty-two patients had bilateral OLT, for an overall bilateral incidence of 10%. Of these, 16 patients required no surgery (Group 1), 31 required only unilateral surgery (Group 2), and five required bilateral surgery (Group 3). 88% of the OLT were located medially. Symptomatic talar lesions were significantly larger compared to asymptomatic OLT ( p &lt; 0.01). Of those that required only unilateral surgery, the size of the OLT eventually requiring surgery was significantly larger ( p &lt; 0.01). <\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion:<\/jats:title><jats:p> The overall incidence of bilateral involvement was 10%. A majority of patients with bilateral involvement had the OLT located on the medial side. A larger surface area appeared to be related to the presence of symptoms and the need for surgery. <\/jats:p><\/jats:sec>","DOI":"10.3113\/fai.2009.0723","type":"journal-article","created":{"date-parts":[[2009,9,7]],"date-time":"2009-09-07T15:06:18Z","timestamp":1252335978000},"page":"723-727","source":"Crossref","is-referenced-by-count":43,"title":["Bilateral Osteochondral Lesions of the Talus"],"prefix":"10.1177","volume":"30","author":[{"given":"Evan","family":"Hermanson","sequence":"first","affiliation":[{"name":"Van Nuys, CA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Richard D.","family":"Ferkel","sequence":"additional","affiliation":[{"name":"Van Nuys, CA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2009,8,1]]},"reference":[{"key":"bibr1-FAI.2009.0723","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-198062040-00020"},{"key":"bibr2-FAI.2009.0723","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-198971080-00004"},{"key":"bibr3-FAI.2009.0723","first-page":"2183","volume":"78","author":"Arcomano JP","year":"1978","journal-title":"NY State J Med"},{"key":"bibr4-FAI.2009.0723","doi-asserted-by":"publisher","DOI":"10.1053\/ar.1999.v15.0150191"},{"key":"bibr5-FAI.2009.0723","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-195941060-00002"},{"key":"bibr6-FAI.2009.0723","first-page":"387","volume":"44","author":"Blom JM","year":"1975","journal-title":"Radiol Clin (Basel)"},{"key":"bibr7-FAI.2009.0723","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-198062010-00014"},{"key":"bibr8-FAI.2009.0723","doi-asserted-by":"publisher","DOI":"10.1097\/00005373-196705000-00005"},{"key":"bibr9-FAI.2009.0723","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-197052010-00018"},{"key":"bibr10-FAI.2009.0723","doi-asserted-by":"publisher","DOI":"10.1148\/65.4.590"},{"key":"bibr11-FAI.2009.0723","unstructured":"Ferkel RD: Arthroscopic Surgery: The Foot and Ankle. 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