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This study evaluates menisci in MMPRT patients using 3D T2* mapping and assesses T2* correlation with medial meniscal extrusion. Patients underwent 7\u2009T knee MRI before root tear repair and again at 6\u2010month postoperative follow\u2010up. Age\u2010 and gender\u2010matched controls were scanned once. The protocol included clinical turbo\u2010spin\u2010echo sequences and a quantitative 3D GRE sequence, used to calculate T2* mapping of the menisci. Pre\u2010 and postrepair meniscal extrusion was measured on coronal T2\u2010weighted images by two independent radiologists. Twenty\u2010five patients (mean age 53\u2009\u00b1\u20098 years) and nine controls (51\u2009\u00b1\u200911 years) were included. Repairs were intact on follow\u2010up MRI in all patients. T2* values were significantly elevated in patients both pre\u2010 and postrepair compared with controls across medial and lateral meniscal subregions. Medial meniscal extrusion increased from 3.7\u2009\u00b1\u20091.1\u2009mm at baseline to 4.9\u2009\u00b1\u20091.5\u2009mm (\n                    <jats:italic>p<\/jats:italic>\n                    \u2009=\u20090.002), postoperatively. Prerepair meniscal T2* strongly correlated with postrepair extrusion (\n                    <jats:italic>\u03c1<\/jats:italic>\n                    \u2009=\u20090.765;\n                    <jats:italic>p<\/jats:italic>\n                    \u2009&lt;\u20090.001). High\u2010resolution 3D T2* mapping at 7\u2009T revealed persistently elevated T2* values after MMPRT repair, consistent with ongoing collagen fiber disorganization. Prerepair T2* values were strongly correlated with early postrepair meniscal extrusion despite MRI\u2010intact repairs, indicating that preoperative tissue quality is associated with postoperative outcomes. These findings support quantitative T2* mapping as a prognostic imaging biomarker that complements conventional morphologic MRI in the evaluation of MMPRTs.\n                  <\/jats:p>","DOI":"10.1002\/jor.70286","type":"journal-article","created":{"date-parts":[[2026,10,8]],"date-time":"2026-10-08T04:25:32Z","timestamp":1791433532000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Preoperative 7\u2009T 3D Meniscal T2* Mapping Correlates With Postoperative Extrusion After Medial Meniscus Posterior Root Tear Repair"],"prefix":"10.1002","volume":"44","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7670-8134","authenticated-orcid":false,"given":"Abdul Wahed","family":"Kajabi","sequence":"first","affiliation":[{"name":"Center for Magnetic Resonance Research University of Minnesota Minneapolis Minnesota USA"},{"name":"Department of Radiology University of Minnesota Minneapolis Minnesota USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0001-9830-4269","authenticated-orcid":false,"given":"Karsten","family":"Knutsen","sequence":"additional","affiliation":[{"name":"Center for Magnetic Resonance Research University of Minnesota Minneapolis Minnesota USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7805-5894","authenticated-orcid":false,"given":"Eisa","family":"Hedayati","sequence":"additional","affiliation":[{"name":"Center for Magnetic Resonance Research University of Minnesota Minneapolis Minnesota USA"},{"name":"Department of Radiology University of Minnesota Minneapolis Minnesota USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0004-6378-337X","authenticated-orcid":false,"given":"Collin","family":"Steinberger","sequence":"additional","affiliation":[{"name":"Center for Magnetic Resonance Research University of Minnesota Minneapolis Minnesota USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8211-2828","authenticated-orcid":false,"given":"\u0160tefan","family":"Zb\u00fd\u0148","sequence":"additional","affiliation":[{"name":"Department of Biomedical Engineering Cleveland Clinic Research, Cleveland Clinic Cleveland Ohio USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0009-9168-6127","authenticated-orcid":false,"given":"Asif Abul","family":"Hassan","sequence":"additional","affiliation":[{"name":"Center for Magnetic Resonance Research University of Minnesota Minneapolis Minnesota USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2527-6308","authenticated-orcid":false,"given":"Hassan","family":"Ahad","sequence":"additional","affiliation":[{"name":"Center for Magnetic Resonance Research University of Minnesota Minneapolis Minnesota USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7173-9916","authenticated-orcid":false,"given":"Abhinav","family":"Lamba","sequence":"additional","affiliation":[{"name":"Center for Magnetic Resonance Research University of Minnesota Minneapolis Minnesota USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0004-6650-3935","authenticated-orcid":false,"given":"Luke V.","family":"Tollefson","sequence":"additional","affiliation":[{"name":"Twin Cities Orthopedics Edina Minnesota USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3323-7069","authenticated-orcid":false,"given":"Takashi","family":"Takahashi","sequence":"additional","affiliation":[{"name":"Department of Radiology University of Minnesota Minneapolis Minnesota 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