ACL Tear: What to Do in the First Days and How to Plan Your Care
Recognizing an ACL Injury
The anterior cruciate ligament (ACL) is one of the two cruciate ligaments inside your knee, running diagonally through the joint to control forward tibial translation and rotational stability. ACL tears most often happen during athletic activities — a cutting maneuver, an awkward landing from a jump, or a sudden deceleration. A pop at the moment of injury is commonly reported, followed by rapid swelling and a sense that the knee will not hold your weight.
Not every ACL injury announces itself dramatically. Some patients experience more diffuse pain and swelling without a clear pop. If you have sustained a knee injury during sport or physical activity and the joint swells within a few hours, an ACL injury should be suspected until an orthopedic evaluation proves otherwise.
Immediate Management After Injury
In the hours immediately following a suspected ACL injury, focus on protecting the knee from further stress. Stop the activity and avoid bearing full weight on the affected leg. Apply ice wrapped in a cloth — not directly on skin — for fifteen to twenty minutes at a time, every two to three hours, to reduce swelling. Keep the leg elevated above heart level when resting, and use a compression wrap or sleeve if available.
Over-the-counter anti-inflammatory medications such as ibuprofen can help with pain and swelling if you have no contraindications to using them. Crutches can make moving around more manageable while you await evaluation.
These measures control symptoms; they do not treat the underlying injury. An orthopedic evaluation — which includes a physical examination and, typically, an MRI — is necessary to confirm the diagnosis and assess whether other structures such as the menisci or collateral ligaments were also injured.
Surgical Versus Nonsurgical Treatment
The decision between surgery and conservative management depends on several factors: your age, activity level, degree of instability, and whether other structures were damaged along with the ACL.
For athletes who want to return to cutting and pivoting sports, reconstruction is generally recommended. Continuing those activities with an ACL-deficient knee carries meaningful risk of further cartilage and meniscal damage. For older or less active patients whose primary activities do not require rotational stability — walking, cycling, swimming — supervised physical therapy to strengthen the surrounding musculature can restore functional stability without surgery.
If surgery is chosen, timing matters. Operating before acute swelling resolves — usually within the first one to three weeks — is associated with higher rates of post-operative stiffness. Most surgeons prefer to wait until the knee has regained most of its normal range of motion before proceeding.
Planning Your Path Forward
Once your ACL tear is confirmed, work with your orthopedic surgeon to determine the right treatment path based on your goals and overall health. If surgery is appropriate, ask about graft options, expected timeline to return to sport, and what your rehabilitation program will look like.
Regardless of whether you choose surgical or nonsurgical treatment, physical therapy is a cornerstone of ACL rehabilitation. The muscles around the knee — particularly the quadriceps and hamstrings — need to be progressively strengthened, and neuromuscular control must be systematically retrained before returning to high-demand activity.
If you're experiencing an ACL injury, the specialists at Maryland Orthopedic Specialists can help. Call (301) 515-0900 or [schedule an appointment online](https://www.mdorthospecialists.com/contact).
