Knee laceration (skin cut)

About Knee laceration (skin cut)

Cut on the knee. Lacerations of the knee can be simple involving only the skin or complex with injury to tendons, nerves, blood vessels or the joint. With tendon lacerations there is weakness in the leg movement, and with nerve damage numbness is experienced beyond the laceration. Deep lacerations that invade the joint space can be serious since they can lead to an infection in the joint.

Symptoms

Laceration, bleeding, inability to flex or extend the knee, numbness.

Tests & Diagnostics

A history and physical exam will be performed. Additional tests may include: testing of the nerve and tendon function and X-rays to rule out a foreign body.

Common tests: X-ray.

Conventional treatment summary

Simple lacerations require only a bandage or sutures to close the skin. More complex lacerations may require repair of tendons, nerves and/or arteries. Lacerations that extend into the knee joint may require cleaning out of the joint in the operating room. Knee lacerations should be repaired within 12 hours to prevent infection. While waiting for treatment the laceration can be cleaned with water and covered with gauze or a clean cloth. Pressure on the wound can be applied to stop bleeding. If the bleeding is profuse seek medical attention right away. A tetanus booster may be needed if the last one was more than 5 years ago.

Medical specialties

Orthopedic Surgery · Emergency Medicine · Urgent Care Medicine

This page is educational content, not medical advice. Always consult a qualified clinician for diagnosis and treatment of Knee laceration (skin cut).