RecoverMe

Knee · MCL Sprain (Grade I-II)

Inner Knee Ligament Sprain

The ligament on the inside of the knee helps control sideways movement. A mild or moderate sprain can make the inside of the knee sore.

Sideways force or twisting can strain this ligament. Begin comfortable movement and thigh control, protecting against extra sideways stress.

How it typically shows up

An isolated grade I-II medial collateral ligament sprain is a stretch or partial tear of the inner knee ligament. This nonoperative program builds everyday capacity and does not cover postoperative or multiligament rehabilitation.

How long recovery takes

Begin with gentle thigh work, build leg control, then practice comfortable standing movements. Follow any brace and weight-bearing limits already in place. The final block supports everyday tasks, not cutting or contact sport.

The phased recovery approach

  1. Phase 1 · 2–3 weeks

    Gentle movement

    Keep the thigh working while the inside of the knee settles. Keep sideways force off the knee, and don’t let it fall inwards.

    What you get back: comfortable movement at home.

    • Seated Knee Movement: 1 set × 7–10 reps · Move smoothly without forcing or twisting your knee. · Sit on a firm chair with both feet on the floor.
    • Quad Set: 7–10 sets × 10s hold · Squeeze firmly and keep breathing. · Sit or lie with your leg straight ahead.
    • Straight Leg Raise: 2–3 sets × 10–15 reps · Move smoothly, lowering slower than you lift. · Lie on your back, one knee bent, other leg straight.
    • Side-Lying Leg Raise: 2–3 sets × 10 reps · Lift with the hip, not by rolling your back. · Lie on your side with your body in one straight line.

  2. Phase 2 · 2–3 weeks

    Leg control

    Build thigh and hip control with steady movements. Keep sideways force off the knee, and don’t let it fall inwards.

    What you get back: steadier everyday steps.

    • Straight Leg Raise: 2–3 sets × 10–15 reps · Move smoothly, lowering slower than you lift. · Lie on your back, one knee bent, other leg straight.
    • Side-Lying Leg Raise: 2–3 sets × 10 reps · Lift with the hip, not by rolling your back. · Lie on your side with your body in one straight line.
    • Quad Set: 7–10 sets × 10s hold · Squeeze firmly and keep breathing. · Sit or lie with your leg straight ahead.
    • Seated Knee Movement: 1 set × 7–10 reps · Move smoothly without forcing or twisting your knee. · Sit on a firm chair with both feet on the floor.

  3. Phase 3 · 3–4 weeks

    Everyday strength

    Practice controlled standing work for everyday tasks. Keep sideways force off the knee, and don’t let it fall inwards.

    What you get back: easier standing and stairs.

    • Graded Walking: 1 set × 20–30 min of activity · Shorten the walk if pain climbs during it. · Start walking at a comfortable, easy pace.
    • Partial Squat: 2–3 sets × 10–15 reps · Stop before it bites, staying in a comfortable range. · Stand with your feet shoulder-width apart.
    • Straight Leg Raise: 3 sets × 15 reps · Move smoothly, lowering slower than you lift. · Lie on your back, one knee bent, other leg straight.
    • Side-Lying Leg Raise: 3 sets × 10 reps · Lift with the hip, not by rolling your back. · Lie on your side with your body in one straight line.

Exact exercises, sets and progression depend on your severity, equipment and goal. This is the shape of the program, not a one-size prescription.

What matters while you recover

  • Protect the inside of the knee

    Avoid pivoting or twisting on the planted foot while it is sore. Keep any existing brace and weight-bearing limits in place, including during exercise.

  • Standing work comes once the inside settles

    Keep standing exercises shallow and controlled. The squat block is for after the protected brace period, when ordinary standing and walking are comfortable.

  • Keep comfortable motion

    Bend and straighten the knee 7 to 10 times within any existing brace limits. In the early block, repeat the gentle exercise bout up to three times daily.

Common questions

How hard should the exercises feel?
Keep the movements controlled. Stop a movement if it causes sharp pain and use an easier range or load next time.
Is it safe to put weight through the leg?
Yes, within any brace or weight-bearing limits you have already been given. Walking and putting weight through the leg early is normal for this injury, whether the sprain is mild or moderate.
Does it matter how bad the sprain is?
Mild and moderate sprains use the same exercises here. How your knee responds week to week guides progress.
What does finishing this program mean?
The program builds a foundation for everyday activities. It takes you back to everyday activity, not back to running or sport, which need more than this covers.
When should I try standing exercises?
Keep any existing brace and weight-bearing limits. Start the squat block after the protected brace period, with comfortable walking and no giving way. Keep squats shallow and controlled.

Related knee conditions

Sources