{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,1]],"date-time":"2026-05-01T05:05:44Z","timestamp":1777611944383,"version":"3.51.4"},"reference-count":28,"publisher":"SAGE Publications","issue":"1","license":[{"start":{"date-parts":[[2003,1,1]],"date-time":"2003-01-01T00:00:00Z","timestamp":1041379200000},"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":[[2003,1]]},"abstract":"<jats:p>Ideally, osteotomy for hallux valgus deformities corrects varus angle and pronation, while minimizing elevation, depression, and shortening. We used a serial linkage tracking device to evaluate five variations of the Ludloff osteotomy, a stable proximal metatarsal osteotomy that incorporates an oblique dorsal to plantar cut and a lateral swing or pivoting correction of the dorsal fragment. A neutral osteotomy (perpendicular to the sagittal plane) yielded the greatest correction (14\u00b0) but with shortening (average, 2.85 mm), elevation (average, 1.36 mm), and additional pronation (average, 1.88\u00b0). The same osteotomy angled 10\u00b0 plantarly with 8\u00b0 of correction produced an average of 1.57\u00b0 of supination, 1.22 mm of depression and, 0.54 mm of shortening. Additional plantar inclination (20\u00b0) and angular correction (16\u00b0) yielded increased depression, supination, and shortening. The current findings provide guidelines to achieve the desired correction and rotation and suggest that optimal results can be obtained by performing this osteotomy angled 10\u00b0 plantarly with a correction of 8\u00b0 to 16\u00b0.<\/jats:p>","DOI":"10.1177\/107110070302400105","type":"journal-article","created":{"date-parts":[[2017,1,11]],"date-time":"2017-01-11T14:50:33Z","timestamp":1484146233000},"page":"34-39","source":"Crossref","is-referenced-by-count":26,"title":["The Ludloff Metatarsal Osteotomy: Guidelines for Optimal Correction Based on a Geometric Analysis Conducted on a Sawbone Model"],"prefix":"10.1177","volume":"24","author":[{"given":"Hans-J\u00f6rg","family":"Trnka","sequence":"first","affiliation":[{"name":"Department of Orthopaedic Surgery, The Union Memorial Hospital, Baltimore, Maryland"},{"name":"Department of Orthopaedic Surgery, Foot and Ankle Service, Hadassah Medical Center, Hebrew University, P.O. 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