Outcomes After Isolated Medial Patellofemoral Ligament Reconstruction for Recurrent Patellar Instability: Influence of Persistent Postoperative Apprehension and J-Sign
In this prospective study of knees undergoing isolated MPFL reconstruction for recurrent patellofemoral instability, patients with postoperative J-signs showed worse PROMs at 2 years, a higher percentage of patients with preoperative knee hyperextension and postoperative apprehension did not RTS, and patients with postoperative apprehension did not experience recurrent instability. These findings support the need to further investigate if postoperative J-sign and apprehension may be important markers of suboptimal outcomes after isolated MPFL reconstruction for recurrent instability, which in turn may help identify patients who may benefit from concomitant bony realignment procedures at the time of their index procedure.
Authors
- Elizabeth R. Dennis (ORCID: https://orcid.org/0000-0002-7214-3460)
- Simone Gruber (ORCID: https://orcid.org/0000-0002-6313-1353)
- Beth E. Shubin Stein (ORCID: https://orcid.org/0000-0003-4249-7740)
- Jacqueline Munch Brady (ORCID: https://orcid.org/0000-0003-3357-7183)
- William A. Marmor (ORCID: https://orcid.org/0000-0002-8434-2088)
- Joseph Nguyen (ORCID: https://orcid.org/0000-0003-1686-3911)
- Natalie Pahapill (ORCID: https://orcid.org/0000-0002-0638-9809)
- Bennett E. Propp (ORCID: https://orcid.org/0000-0002-0590-3669)
- Brittany M. Ammerman (ORCID: https://orcid.org/0000-0002-4301-8812)
Institutions
- Hospital for Special Surgery (US)
- University of Miami (US)
- Oregon Health & Science University (US)
- Mount Sinai Hospital (US)
- Icahn School of Medicine at Mount Sinai (US)
Publication Details
- Journal
- The American Journal of Sports Medicine
- Published
- 2025-06-06
- DOI
- https://doi.org/10.1177/03635465251339822
- Citations
- 3
- Primary Topic
- Lower Extremity Biomechanics and Pathologies
- Type
- article
- Field-Weighted Citation Impact
- 2.02