{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,20]],"date-time":"2026-10-20T18:38:59Z","timestamp":1792521539050,"version":"4.5.0"},"reference-count":28,"publisher":"Wiley","issue":"12","license":[{"start":{"date-parts":[[2012,3,6]],"date-time":"2012-03-06T00:00:00Z","timestamp":1330992000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Knee surg. sports traumatol. arthrosc."],"published-print":{"date-parts":[[2012,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Purpose<\/jats:title><jats:p>The aim of the present study was to assess whether using megaprostheses in revision knee arthroplasty procedures allows limb salvage with an acceptable outcome and complication rate, in comparison with other limb\u2010saving procedures.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Between 2000 and 2010, megaprosthesis implantation was required for non\u2010oncologic indications in 20 patients (21\u00a0knees) (average age 73 years). Reconstructions involved the distal femur (<jats:italic>n<\/jats:italic> = 15), proximal tibia (<jats:italic>n<\/jats:italic> = 4), and both femur and tibia (<jats:italic>n<\/jats:italic> = 2). The indications, type, and numbers of previous operations and implants, as well as complications associated with megaprosthesis implantation, were reviewed, and the clinical and radiographic outcomes after an average follow\u2010up period of 34\u00a0months (range 10\u201384\u00a0months) were evaluated.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The indications for megaprosthesis implantation were periprosthetic infection (<jats:italic>n<\/jats:italic> = 5), fracture (<jats:italic>n<\/jats:italic> = 9), nonunion (<jats:italic>n<\/jats:italic> = 5), and aseptic loosening (<jats:italic>n<\/jats:italic> = 2). The types of implant placed before the megaprosthetic reconstruction were a cemented rotating\u2010hinge arthroplasty (<jats:italic>n<\/jats:italic> = 16) and a primary total knee arthroplasty (<jats:italic>n<\/jats:italic> = 5). Six patients had an additional osteosynthesis of the distal femur. An average of 3.8 operations (range 1\u20137) had been carried out before megaprosthesis implantation. Complications developed in 11 patients. The Knee Society Score improved significantly, from 43 (\u00b115) to 68 (\u00b116.8); <jats:italic>P<\/jats:italic> &lt; 0.05.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Megaprosthesis implantation in revision knee arthroplasty is an exceptional indication. Despite the high complication rate, the patients can be spared amputation in most cases, and rapid mobilization with full weight\u2010bearing is possible.<\/jats:p><\/jats:sec>","DOI":"10.1007\/s00167-012-1945-2","type":"journal-article","created":{"date-parts":[[2012,3,5]],"date-time":"2012-03-05T17:45:49Z","timestamp":1330969549000},"page":"2513-2518","source":"Crossref","is-referenced-by-count":99,"title":["Distal femur and proximal tibia replacement with megaprosthesis in revision knee arthroplasty: a limb\u2010saving procedure"],"prefix":"10.1002","volume":"20","author":[{"given":"Steffen","family":"H\u00f6ll","sequence":"first","affiliation":[{"name":"<!--<label>1<\/label>--> Department of General Orthopedics and Tumor Orthopedics M\u00fcnster University Hospital Albert Schweitzer\u2010Campus 1 48149 M\u00fcnster 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