{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T15:53:22Z","timestamp":1787068402678,"version":"build-2736575974"},"reference-count":27,"publisher":"Wiley","issue":"10","license":[{"start":{"date-parts":[[2012,10,30]],"date-time":"2012-10-30T00:00:00Z","timestamp":1351555200000},"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":[[2014,10]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>Maltracking of the patella after total knee arthroplasty (TKA) remains a well\u2010recognized problem. The medial patellofemoral ligament (MPFL) has shown to be important for patellar stabilization and reconstructions of the MPFL have already shown excellent functional outcomes for patellar instability of the native knee. Nevertheless, there is only limited literature on using an MPFL reconstruction for correction of patellar maltracking after TKA. In this retrospective study, a consecutive case series was evaluated.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Between 2007 and 2010, nine patients (nine knees) with anterior knee pain and symptomatic (sub)luxations of the patella after primary or revision TKA were treated by reconstruction of the MPFL in combination with a lateral release. In two cases, an additional tibial tuberosity transfer was performed, due to insufficient per\u2010operative correction. Pre\u2010operative work\u2010up included a CT scan to rule out component malrotation and disorders in limb alignment. Pre\u2010 and post\u2010operative patellar displacement and lateral patellar tilt were measured on axial radiographs. Clinical outcome was evaluated using the visual analogue scale (VAS) satisfaction, VAS pain, dislocation rate and Bartlett patella score.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Median patellar displacement improved from 29\u00a0mm (0\u201344) to 0\u00a0mm (0\u20139) post\u2010operatively. Median lateral patellar tilt was 45\u00b0 (23\u201362) pre\u2010operative and changed to a median 15\u00b0 (\u22123 to 21) post\u2010operative. Median VAS satisfaction was 8 (5\u20139) and only one patient reported a subluxing feeling afterwards. The Bartlett patella score displayed a diverse picture.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Patellar maltracking after primary or revision TKA without malrotation can effectively be treated by MPFL reconstruction in combination with a lateral release. Only in limited cases, an additional tibial tuberosity transfer is needed.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Level of evidence<\/jats:title>\n                    <jats:p>IV.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1007\/s00167-012-2269-y","type":"journal-article","created":{"date-parts":[[2012,10,29]],"date-time":"2012-10-29T16:02:28Z","timestamp":1351526548000},"page":"2569-2573","source":"Crossref","is-referenced-by-count":34,"title":["Medial patellofemoral ligament reconstruction for patellar maltracking following total knee arthroplasty is effective"],"prefix":"10.1002","volume":"22","author":[{"given":"Stijn","family":"van Gennip","sequence":"first","affiliation":[{"name":"Orthopaedic Surgery St. Maartenskliniek Postbus 9011 6500 GM Nijmegen The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Janneke J. P.","family":"Schimmel","sequence":"additional","affiliation":[{"name":"Research Development and Education St. Maartenskliniek Nijmegen The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gijs G.","family":"van Hellemondt","sequence":"additional","affiliation":[{"name":"Orthopaedic Surgery St. Maartenskliniek Postbus 9011 6500 GM Nijmegen The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Koen C.","family":"Defoort","sequence":"additional","affiliation":[{"name":"Orthopaedic Surgery St. Maartenskliniek Postbus 9011 6500 GM Nijmegen The Netherlands"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ate B.","family":"Wymenga","sequence":"additional","affiliation":[{"name":"Orthopaedic Surgery St. Maartenskliniek Postbus 9011 6500 GM Nijmegen The 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