{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,22]],"date-time":"2026-09-22T16:45:35Z","timestamp":1790095535151,"version":"4.0.1"},"reference-count":33,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2016,12,31]],"date-time":"2016-12-31T00:00:00Z","timestamp":1483142400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2016,12,31]],"date-time":"2016-12-31T00:00:00Z","timestamp":1483142400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"},{"start":{"date-parts":[[2016,12,31]],"date-time":"2016-12-31T00:00:00Z","timestamp":1483142400000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"}],"content-domain":{"domain":["clinicalkey.jp","clinicalkey.com","clinicalkey.es","arthroscopyjournal.org","clinicalkey.com.au","clinicalkey.fr","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["Arthroscopy"],"published-print":{"date-parts":[[2017,4]]},"abstract":"<jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>To evaluate 2\u2010stage arthroscopic findings of the patellofemoral joint before and after medial open\u2010wedge high tibial osteotomy (HTO) and verify whether the patellofemoral joint would be influenced by medial open\u2010wedge HTO.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>We prospectively reviewed 114 cases of medial open\u2010wedge HTO for the treatment of osteoarthritis with a varus knee. First\u2010look arthroscopy was performed during HTO. The mean age at the time of HTO was 56.34 \u00b1 5.4\u00a0years (range, 40\u201069\u00a0years). Second\u2010look arthroscopy was performed concomitantly with plate removal at an average of 26.1 \u00b1 6.0\u00a0months (range, 21.6\u201032.0\u00a0months) after HTO. We assessed the patellofemoral joint using the International Cartilage Repair Society (ICRS) grading system by first\u2010 and second\u2010look arthroscopy and compared it before and after\u00a0HTO. Postoperative anterior knee pain was also evaluated.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Compared with first\u2010look findings, second\u2010look arthroscopic ICRS grading was changed as follows: In terms of the patella, 89 cases (78.1%) were not progressed whereas 25 cases (21.9%) were progressed. In terms of the femoral trochlea, 67 cases (58.8%) were not progressed whereas 47 cases (41.2%) were progressed. There was significant progression of the ICRS grade of the patella (\n                      <jats:italic>P<\/jats:italic>\n                      \u00a0= .001) and femoral\u00a0trochlea (\n                      <jats:italic>P<\/jats:italic>\n                      &lt; .001) compared with first\u2010look arthroscopic findings. The incidence of postoperative anterior knee\u00a0pain was 11.4% (13 cases), and it was related to the ICRS grade of the patellofemoral joint at the time of second\u2010look arthroscopy (\n                      <jats:italic>P<\/jats:italic>\n                      &lt; .001 for patella and\n                      <jats:italic>P<\/jats:italic>\n                      &lt; .001 for trochlea).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>This study showed that the patellofemoral joint might be adversely affected by medial open\u2010wedge HTO. Although the incidence of postoperative anterior knee pain was low, it was clinically correlated with patellofemoral arthritis.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Level of Evidence<\/jats:title>\n                    <jats:p>Level IV, therapeutic case series.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1016\/j.arthro.2016.09.034","type":"journal-article","created":{"date-parts":[[2016,12,30]],"date-time":"2016-12-30T10:31:55Z","timestamp":1483093915000},"page":"811-816","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":89,"title":["Medial Open\u2010Wedge High Tibial Osteotomy May Adversely Affect the Patellofemoral Joint"],"prefix":"10.1002","volume":"33","author":[{"given":"Kang\u2010Il","family":"Kim","sequence":"first","affiliation":[{"name":"Department of Orthopaedic Surgery Center for Joint Diseases and Rheumatism Kyung Hee University Hospital at Gangdong Seoul Republic of Korea"},{"name":"Department of Orthopaedic Surgery College of Medicine Kyung Hee University Seoul Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dong\u2010Kyoon","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery Center for Joint Diseases and Rheumatism Kyung Hee University Hospital at Gangdong Seoul Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sang\u2010Jun","family":"Song","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery College of Medicine Kyung Hee University Seoul Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sang\u2010Hak","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery Center for Joint Diseases and Rheumatism Kyung Hee University Hospital at Gangdong Seoul Republic of Korea"},{"name":"Department of Orthopaedic Surgery College of Medicine Kyung Hee University Seoul Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dae\u2010Kyung","family":"Bae","sequence":"additional","affiliation":[{"name":"Department of Orthopaedic Surgery College of Medicine Kyung Hee University Seoul Republic of Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2016,12,31]]},"reference":[{"key":"e_1_2_2_2_2","doi-asserted-by":"publisher","DOI":"10.1177\/0363546509360403"},{"key":"e_1_2_2_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.arthro.2012.02.002"},{"key":"e_1_2_2_4_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-007-0305-0"},{"key":"e_1_2_2_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.knee.2004.02.002"},{"key":"e_1_2_2_6_2","doi-asserted-by":"publisher","DOI":"10.1007\/s00167-004-0572-y"},{"key":"e_1_2_2_7_2","first-page":"163","article-title":"Observations on patellar height following opening wedge 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