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Orthopedics & Traumatology

MCL Tear, Grade III, Left Knee

ICD-10 Code
S83.418A

Clinical Presentation & Protocol

Patient Usually Complains Of

Patient presents with acute left knee pain following a valgus stress injury. Reports immediate onset of sharp medial pain, localized swelling, and subjective instability. Patient notes difficulty with weight-bearing and a sensation of the knee "giving way." No history of prior injury to the affected knee.

Clinical Examination Findings

Left knee examination reveals significant medial joint line tenderness and localized edema. Valgus stress testing at 0 and 30 degrees demonstrates complete loss of a firm endpoint, consistent with a Grade III MCL tear. Lachman and posterior drawer tests are negative. Neurovascular status is intact distally.

Treatment Protocol

Immediate management includes immobilization with a hinged knee brace locked in extension, RICE protocol (Rest, Ice, Compression, Elevation), and non-weight-bearing status with crutches. Referral to physical therapy for range-of-motion progression and strengthening. Orthopedic follow-up scheduled for reassessment of ligamentous stability.

Detailed clinical guide coming soon.