Anatomic drivers of J-Sign presence and severity: if there is a jump, look for a bump
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N Dandu, M Hevesi, AR Phillips…
… American Journal of …, 2025
journals.sagepub.com
Background: Medial patellofemoral ligament reconstruction is frequently indicated for recurrent lateral patellar instability. The preoperative presence and severity of a J-sign have been associated with poorer postoperative outcomes. Purpose: To determine the underlying anatomic factors that contribute to the presence, severity, and jumping quality of the J-sign. Study Design: Cross-sectional study; Level of evidence, 3. Methods: All patients undergoing evaluation for patellar instability at a single institution between 2013 and 2023 and healthy …
