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This technical note outlines an arthroscopic technique called supratrochlear rim resection, which proposes a line of treatment that addresses not only symptoms (patellar cartilage defect) but also a suspected biomechanical reason (supratrochlear rim). The proposed technique combines resection of the supratrochlear rim with a modification of autologous matrix\u2010induced chondrogenesis cartilage reconstruction on the femoral side at the location of the resected rim, as well as on the patellar defect.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Technique Video<\/jats:title>\n                    <jats:p>\n                      <jats:boxed-text content-type=\"video\" position=\"anchor\">\n                        <jats:graphic xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" position=\"anchor\" xlink:href=\"urn:x-wiley:22126287:media:atn2bf04118:atn2bf04118-vimg-0001\">\n                          <jats:alt-text>video<\/jats:alt-text>\n                        <\/jats:graphic>\n                      <\/jats:boxed-text>\n                    <\/jats:p>\n                    <jats:p>\n                      <jats:bold>See video under supplementary data.<\/jats:bold>\n                 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