LCL/PLC Surgery

The lateral collateral ligament (LCL) is one of the four major ligaments of the knee. It is located on the outside (lateral side) of the knee and connects the femur to the fibula. It is part of a larger group of complex structures referred to as the posterolateral corner (PLC) that provide stability to the outside of the knee. Other important structures in the posterolateral corner are the iliotibial band (IT band), popliteus tendon, biceps femoris tendon, and popliteofibular ligament.

knee-lcl-collateral-1The LCL and posterolateral corner structures provide stability and prevent the outside of the knee from opening up with walking or other movements. They also play an important role in the rotational stability of the knee.

The LCL and posterolateral corner are typically injured from a blow to the inside of the knee or with high-energy trauma, such as a car accident. Injuries to the LCL and posterolateral corner rarely occur in isolation and are usually associated with tears of other knee ligaments (ACL, MCL, or PCL).

The most common symptom following an injury to the LCL and posterolateral corner is pain over the outside of the knee. Swelling, decreased motion, and instability are common with this injury. It may be difficult to place weight on the knee.

Partial tears of the LCL and posterolateral corner structures can be treated without surgery but complete tears often require surgical treatment. The torn ligaments can sometimes be repaired (sewn back together) or are reconstructed using tendon graft obtained from either the patient or a cadaver (allograft). If other ligaments are also injured in the knee (ACL, MCL, or PCL), these can be surgically addressed at the same time.

knee-lcl-collateral-2

ProOrtho Medical Specialties

Latest ProOrtho News

  • Food containing vitamin C for healthy bones

    An Orange (or Two) A Day Keeps Osteoporosis at Bay

    Scurvy was the scourge of sailors for thousands of years, specifically between the 16th and 18th centuries. Scurvy is a dietary deficiency caused by a lack of vitamin C. The body doesn’t naturally make vitamin C, so it must come from citrus fruits (or juices, yum!), leafy vegetables (slightly less fun to drink in juice …

  • Happy senior couple in raincoats during rainy day in nature.

    Weatherproof Ways to Stay Healthy and Reduce Pain

    It’s happening. We’ve been ignoring it for months and just hoping for the best. But as we all know, hope is not a plan, especially when it comes to staying active when the weather outside is more than frightful. That’s right. The seasons are CHANGING. Fall has arrived, and winter is hot on its heels. …

  • Seattle Met Top Docs 2022

    Seattle Met’s Top Doctors 2022—ProOrtho Makes the Grade!

    [Not pictured above: Dr Stone, Dr Antoine, Dr Wen and Dr Nelson] What does “the best” really mean? We humans make a dizzying amount of decisions every day, and the desire for “the best” outcome governs how we make each choice. Thus, if we must commute, we use Waze or Google Maps to determine the …

Locations

Business Office

Surgery Center

MRI

Stay Connected

A Service of Proliance Surgeons


We’re a part of Proliance Surgeons, a team of independent, physician led care centers dedicated to providing exceptional outcomes, personally delivered.