Symptoms of a Torn ACL

By Andrew Heideman, PT, ATC

What are the Symptoms of a Torn ACL?

A Torn ACL, also known as an ACL Sprain, ACL Injury, or an ACL Tear occurs when the Anterior Cruciate Ligament of the Knee becomes an injury. Typical causes of injury include:

  • hyperextension of the knee
  • a sudden turn or cut made with the knee
  • landing from a jump awkwardly
  • a sudden stop
  • getting hit on the side of the knee while the foot is planted

Common signs and symptoms of a torn ACL include increased swelling in the knee a few minutes after the injury occurs, difficulty walking or standing due to instability in the knee, an audible “pop”, and the onset of intense or mild pain in the knee upon injury. In more serious cases, other structures may be damaged which can result in loss of feeling or numbness down the leg and into the foot.

If you would like to watch a video about this injury, go to: Torn ACL

Knee Anatomy

The anatomy of the knee is complex. There are several knee ligaments which provide stability to the knee joint.  There is the ACL, PCL, MCL, and LCL. The knee also has the medial and lateral meniscus to serve to absorb the stress of weight bearing in the knee. When any of these structures are injured, the knee loses the ability to function properly.  If you want to learn more about the anatomy of the knee, go to this video of the knee.

Please call us at JOI-2000 if you suspect you may have torn your ACL as earlier intervention typically improves outcomes.

JOI Knee Joint

Image of a Knee Joint ACL Injuries

JOI Fracture and Injury Care

JOI Physicians are currently offering ASAP Fracture care. Make an appointment by calling (904)JOI-2000. This is a new option for patients who would like to avoid the emergency room if they have suffered a fracture or soft tissue injury. To learn more about this service, read this article about fracture and injury care.

Book An Appointment with a JOI Physician

Skip to content