Clinical Presentation & Protocol
Patient Usually Complains Of
Patient presents with acute right knee pain and significant swelling following a high-energy trauma/hyperextension injury. Reports immediate inability to bear weight, mechanical locking, and a sensation of instability. No prior history of knee ligamentous injury.
Clinical Examination Findings
Right knee examination reveals significant hemarthrosis and tenderness localized to the intercondylar eminence. Lachman test and anterior drawer test are positive for firm endpoint (if non-displaced) or lack of endpoint (if displaced). Range of motion is limited by pain and mechanical block. Neurovascular status is intact distally.
Treatment Protocol
Management plan includes immobilization in a long-leg brace or hinged knee brace in extension. Radiographic assessment (X-ray/CT) to determine displacement. If non-displaced, conservative management with protected weight-bearing. If displaced, surgical intervention via arthroscopic reduction and internal fixation (ARIF) is indicated.