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Article History

Received: 23 October 2025

Revised: 13 January 2026

Accepted: 19 January 2026

First Online: 2 February 2026

Declarations

:

: Not applicable. This work is a review of previously published literature and did not involve human participants or animals; therefore, institutional review board approval and informed consent were not required.

: The authors declare no relevant financial or non-financial competing interests. No prior or duplicate submission or publication elsewhere of any part of the work, including details of any presentation of the study as an abstract at a professional meeting.

: • The posterolateral corner (PLC) is crucial for resisting varus and external tibial rotation; however, injuries are frequently underdiagnosed and are often associated with cruciate ligament failure.• MRI accurately identifies PLC anatomy, injury patterns, and related lesions to guide management.• Most PLC injuries occur with multiligament trauma; timely recognition and surgical reconstruction are essential to restore stability and prevent chronic instability and osteoarthritis.