Lateral Collateral Ligament Injury

Overview


Plain-Language Overview

A Lateral Collateral Ligament Injury affects the ligament on the outer side of the knee, which helps stabilize the joint. This injury commonly occurs during sports or activities that involve sudden twisting or direct impact to the inner knee. The main symptoms include pain, swelling, and difficulty moving the knee normally. Because the ligament supports the knee's stability, damage can lead to a feeling of the knee giving way or instability. This condition involves the musculoskeletal system, specifically the knee joint, and can impact mobility and daily activities. Healing may require rest and sometimes physical therapy to restore strength and function.

Clinical Definition

Lateral Collateral Ligament Injury is a tear or sprain of the ligament located on the lateral aspect of the knee, which resists varus stress and stabilizes the joint against excessive lateral movement. It typically results from a direct blow to the medial knee or a varus force applied to a slightly flexed knee, often seen in contact sports or trauma. The injury can range from a mild sprain (grade I) to a complete rupture (grade III). Clinically, it is significant because it compromises knee stability, increasing the risk of further joint damage and functional impairment. Associated injuries to other knee structures, such as the anterior cruciate ligament or menisci, may coexist. Diagnosis and management depend on the severity of the ligament disruption and the presence of concomitant injuries.

Clinical Presentation


Diagnostic Workup


Pathophysiology


Treatments


Prevention


Outcome & Complications


Differential Diagnoses


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