Orthonotes
Orthonotes
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ACL Injury — Workup & Reconstruction

ACL is critical stabilizer against anterior translation and rotational instability. Mechanism: non-contact pivoting injury; pop and immediate swelling (hemarthrosis). Clinical: Lachman test most sensitive; pivot shift for dynamic instability. Imaging: MRI confirms tear and associated injuries (meniscus, cartilage). Treatment: physiotherapy in low-demand; reconstruction with autograft (BTB, hamstring) in active patients.