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Forty knees had a posterior-cruciate-ligament (PCL)-retaining prosthesis and the other 40 a PCL-sacrificing prosthesis. In the balanced group (69 knees) in which the difference between varus and valgus was less than 2\u00b0, the mean ROM improved significantly from 107.6\u00b0 to 117.7\u00b0 (p &lt; 0.0001). By contrast, in the 11 knees which were unbalanced and in which the difference between varus and valgus laxity exceeded 2\u00b0, the ROM decreased from a mean of 121.0\u00b0 to 112.7\u00b0 (p = 0.0061). We conclude that coronal laxity, especially balanced laxity, is important for achieving an improved ROM in mobile-bearing total knee arthroplasty. <\/jats:p>","DOI":"10.1302\/0301-620x.87b6.15256","type":"journal-article","created":{"date-parts":[[2005,5,23]],"date-time":"2005-05-23T18:33:29Z","timestamp":1116873209000},"page":"804-808","source":"Crossref","is-referenced-by-count":103,"title":["Varus-valgus balance and range of movement after total knee arthroplasty"],"prefix":"10.1302","volume":"87-B","author":[{"given":"Y.","family":"Matsuda","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Y.","family":"Ishii","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"H.","family":"Noguchi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"R.","family":"Ishii","sequence":"additional","affiliation":[{"name":"Ishii Orthopaedic and Rehabilitation Clinic, 1089 Shimo-Oshi, Gyoda, Saitama 361-0037, Japan."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"42","reference":[{"key":"R1","unstructured":"Alicea J. 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