{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,2,21]],"date-time":"2025-02-21T19:14:48Z","timestamp":1740165288970,"version":"3.37.3"},"reference-count":14,"publisher":"Wiley","license":[{"start":{"date-parts":[[2015,1,1]],"date-time":"2015-01-01T00:00:00Z","timestamp":1420070400000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Case Reports in Orthopedics"],"published-print":{"date-parts":[[2015]]},"abstract":"<jats:p>A capital drop is a type of osteophyte at the inferomedial portion of the femoral head commonly observed in hip osteoarthritis (OA), secondary to developmental dysplasia. Capital drop itself is typically asymptomatic; however, symptoms can appear secondary to impinge against the acetabulum or to irritation of the surrounding tissues, such as nerves, vessels, and tendons. We present here a case of unilateral leg edema in a patient with hip OA, caused by a huge bone mass occurring at the inferomedial portion of the femoral head that compressed the femoral vessels. We diagnosed this bone mass as a capital drop secondary to hip OA after confirming that the mass occurred at least after the age of 63 years based on a previous X-ray. We performed early resection and total hip arthroplasty since the patient\u2019s hip pain was due to both advanced hip OA and compression of the femoral vessels; moreover, we aimed to prevent venous thrombosis secondary to vascular compression considering the advanced age and the potent risk of thrombosis in the patient. A large capital drop should be considered as a cause of vascular compression in cases of unilateral leg edema in OA patients.<\/jats:p>","DOI":"10.1155\/2015\/709608","type":"journal-article","created":{"date-parts":[[2015,10,4]],"date-time":"2015-10-04T17:07:09Z","timestamp":1443978429000},"page":"1-4","source":"Crossref","is-referenced-by-count":1,"title":["A Huge Capital Drop with Compression of Femoral Vessels Associated with Hip Osteoarthritis"],"prefix":"10.1155","volume":"2015","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4644-2782","authenticated-orcid":true,"given":"Tomoya","family":"Takasago","sequence":"first","affiliation":[{"name":"Department of Orthopedics, Institute of Biomedical Sciences, Tokushima University Graduated School, Tokushima 770-8503, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2060-4157","authenticated-orcid":true,"given":"Tomohiro","family":"Goto","sequence":"additional","affiliation":[{"name":"Department of Orthopedics, Institute of Biomedical Sciences, Tokushima University Graduated School, Tokushima 770-8503, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Takahiko","family":"Tsutsui","sequence":"additional","affiliation":[{"name":"Department of Orthopedics, Institute of Biomedical Sciences, Tokushima University Graduated School, Tokushima 770-8503, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kenji","family":"Kondo","sequence":"additional","affiliation":[{"name":"Department of Orthopedics, Institute of Biomedical Sciences, Tokushima University Graduated School, Tokushima 770-8503, 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