

A knee ligament injury can be disruptive, but a clear plan is your first step toward recovery. By understanding the process, you can partner with your care team to get back to the activities you enjoy. Here are the key milestones on your journey: Your knees are essential for nearly every move you make, from walking and climbing to simply sitting down. This complex joint is stabilized by strong bands of tissue called ligaments, which ensure it moves safely and efficiently. When a ligament is injured, you may experience pain, swelling, and a troubling sense that the knee is unstable or could "give way." The good news is that effective care is available. With the right treatment plan and a commitment to rehabilitation, most people can significantly reduce pain, regain full function, and return to an active lifestyle. While the knee has several important ligaments, two are injured more often than others: the ACL and the MCL. The ACL is located in the center of the knee and is crucial for preventing the shinbone from sliding too far forward and for providing rotational stability. A quick twisting motion or a sudden stop is most commonly the cause of injury. This can happen during a fall while skiing or in sports that involve cutting and pivoting, such as basketball, soccer, or football. The MCL runs along the inside of your knee, connecting the thighbone to the shinbone and preventing the knee from buckling inward. It often tears when the knee is struck on the outside, a common occurrence in contact sports like football and soccer. To understand your injury, it helps to know the key players inside the knee joint. An accurate diagnosis is the foundation of your treatment plan. Your doctor will use a combination of methods to identify the injured structures and determine the severity of the tear. For less severe tears, or for individuals who are less active, a nonsurgical approach is often successful. Most MCL tears, for example, are treated this way. Surgery may be the best choice if the tear is severe, multiple structures are injured, or your goals include returning to high-impact sports or a physically demanding job. Your surgeon may use arthroscopy (a minimally invasive technique using a small camera and incisions), open surgery, or a combination of both. This is the most common surgery for a torn ACL. The surgeon removes the damaged ligament and replaces it with a tendon graft. This graft may be an autograft (tissue from your own body) or an allograft (tissue from a donor). Tunnels are drilled in the bone, and the graft is passed through and secured to serve as a new, functional ligament. While most MCL tears heal without surgery, an operation may be needed if the tear is severe or combined with other injuries. The surgeon may repair the torn ligament directly or reconstruct it using a graft, similar to an ACL procedure. Recovery is a team effort involving you, your doctor, and your physical therapist—but your commitment is the most important part. Take an active role by learning about your injury, asking questions about the benefits and risks of each option, and clearly communicating your goals. Plan for rehabilitation from the start. Your dedication to showing up, doing your exercises, and following the plan will determine your final outcome. If you and your doctor decide on surgery, proper preparation is key. Use this checklist and ask about any special instructions. If you and your doctor decide on surgery, proper preparation is key. Use this checklist and ask about any special instructions. If you and your doctor decide on surgery, proper preparation is key. Use this checklist and ask about any special instructions. You will spend a few hours in a recovery area where staff will monitor you. Your knee will be bandaged, and your leg may be in a brace. Elevating and icing the leg will begin immediately to control swelling. It is essential to communicate with your nurse to ensure your pain is well-managed. Healing after surgery often takes six months or more. Early on, you’ll probably rely on crutches to get around. To minimize stiffness and scar tissue, keep your knee moving and complete your prescribed exercises. Schedule and attend follow-up appointments with your surgeon to monitor your progress—and bring any questions you have. You’ll receive instruction on proper crutch use. Continue using them for as long as you’re told. You may be fully non-weight-bearing, or you might be allowed to place some weight on the leg. Follow your provider’s guidance closely, and don’t load the injured leg more than instructed. Rehab is essential for all ligament injuries, whether or not you have surgery. Your plan will be tailored to you, but the core principles remain the same. Slowly point and flex your feet throughout the day to reduce swelling and prevent blood clots. While sitting, gently slide your heel toward your buttock to bend the knee. Hold for 3 seconds, then straighten. Tighten the large muscle on top of your thigh, pressing the back of your knee down. Hold for 5 seconds. With your uninjured leg bent, tighten your quad and lift your injured leg straight up about 12 inches. Hold for 3 seconds, then lower slowly. Even after you recover, it's essential to continue strengthening the muscles that support your knee. This ongoing work helps protect the joint from future injury and supports long-term health. Your provider may also recommend wearing a brace for high-risk activities.Your Road to Recovery: Key Steps for a Knee Ligament Injury

Understanding Your Knee and Its Ligaments
Common Knee Ligament Injuries: ACL and MCL

ACL (Anterior Cruciate Ligament)
MCL (Medial Collateral Ligament)
Knee Anatomy, Plainly Explained
Diagnosing Your Knee Ligament Injury

Treatment Options: Choosing the Right Path
Nonsurgical Care: Pain Relief and Early Rehab


Surgical Care: When It Is Considered
ACL Reconstruction
MCL Surgery
Your Role in Recovery: Partner With Your Care Team
Your Surgical Journey: From Preparation to Recovery
Preparing for Surgery
MCL Surgery

ACL Surgery

Right After Surgery
Early Recovery
Walking with Crutches
Rehabilitation: Rebuilding Your Strength and Motion
Exercises

Ankle Pumps

Heal Slides

Quad Sets

Straight Leg Raises
Long-Term Rehab and Returning to Activities
Rehab Plan
Your rehabilitation plan is personalized to your injury, the procedure performed, and your activity goals. During rehab, you will work on exercises that rebuild knee strength and flexibility. That work is essential for returning to normal routines and sports. A physical therapist may lead the early phases, but long-term knee health depends on your consistency.Building Strength
Focus on the muscles that stabilize the knee: quadriceps, hamstrings, and calves. Restoring these muscle groups is a major driver of recovery after knee ligament surgery. Exercises such as leg presses can help increase strength, as directed by your care team.Improving Flexibility
Gentle stretching helps the knee move more freely. Use slow, steady motions without bouncing. You should feel a mild pull, not pain. A simple option is the calf stretch. 
Calf Stretch Instructions
Lifelong Knee Protection
Quick Summary
© 2025 Princeton Orthopaedic Associates. The contents of PrincetonOrthopaedic.com are licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. Copying without permission is strictly forbidden. Privacy Policy | Accessibility
