LCL Sprain

Explanation of Diagnosis

An LCL sprain means the lateral collateral ligament, a band on the outer (outside) side of your knee, has been stretched or partially injured. This ligament helps stabilize the knee against forces that push it inward or create side-to-side wobble. LCL sprains often happen from a direct blow to the inside of the knee, a twisting injury, or a sudden change in direction. Common symptoms include pain on the outer side of the knee, tenderness to touch, swelling (sometimes delayed), and a feeling of looseness or instability.

Specific Work Modifications

• Avoid kneeling, deep squatting, and working with your knee bent for long periods.
• Reduce stair use; use an elevator or take shorter trips if stairs are unavoidable.
• Set up your workstation so you can keep the knee supported and in a comfortable position (a footrest or slight elevation can help).
• Take brief position changes every 30 to 60 minutes instead of staying in one stance.
• Avoid side-to-side stepping, twisting to reach, and lifting that forces you to rotate through the knee.
• If your job requires uneven footing or carrying loads, use help or temporary restrictions until symptoms calm down.

Specific Activity Modifications

• Pause pivoting sports, cutting, and contact drills that stress the outside of the knee.
• Avoid running, jumping, and high-speed direction changes until you can move without worsening pain or swelling.
• Skip or modify side lunges, wide stances, and aggressive lateral movements early on.
• Choose low-impact options like gentle walking on level ground and stationary cycling only if it stays pain-free and comfortable.
• Strength training should avoid exercises that create a “knock-knee” or push-in/out force at the knee; keep movements controlled and pain-limited.
• Return gradually, and stop the activity the same day symptoms sharply increase.

Recommended Supplements

• Omega-3 fish oil, 1,000 to 2,000 mg daily, may help support a balanced inflammatory response during tissue recovery.
• Curcumin (turmeric extract), 500 to 1,000 mg daily, is commonly used for its potential anti-inflammatory effects.
• Collagen peptides, 10 g daily, may support connective-tissue health when combined with regular rehab.
• Vitamin C, 500 to 1,000 mg daily, may support normal collagen formation involved in ligament healing.

Recommended Nutrition and Hydration

Diet Recommendations

• Aim for adequate protein each day (for example, eggs, fish, poultry, tofu, beans, yogurt) to support tissue repair.
• Include colorful fruits and vegetables daily to supply antioxidants and micronutrients.
• Choose healthy fats (olive oil, nuts, seeds) and limit highly processed foods that can worsen inflammation for some people.
• Stay consistent with fiber and whole grains to support recovery-friendly energy levels.

Hydration Tips

• Drink enough fluids so your urine is pale yellow, especially if you are more active with gentle rehab.
• If you sweat during your day or exercises, include electrolytes (for example, an oral electrolyte drink) as needed.

Home Exercise Prescription

Perform these exercises 4 to 5 days per week, staying within a pain-free or very mild discomfort range.

1. Ankle pumps: Sit or lie down and move your ankle up and down, 20 to 30 reps.
2. Heel slides: Lie on your back and slowly slide your heel toward your body until you feel a comfortable stretch at the knee, then slide back, 10 reps.
3. Quadriceps sets: With your leg straight, tighten the front thigh muscle and press the knee gently downward without forcing, hold 5 to 10 seconds, 10 reps.
4. Short arc knee extension (supported): Place a rolled towel under your knee so it is slightly lifted, gently straighten the knee until comfortable, then slowly return, 8 to 12 reps.
5. Side-lying hip abduction: Lie on your side and lift the top leg slightly while keeping toes pointing forward, controlled and steady, 10 reps per side.

Stop if you notice sharp pain, a sudden increase in swelling, or new feelings of instability.

Helpful Books

• "Explain Pain" written by David Butler, Lorimer Moseley
• "Move Your DNA" written by Katy Bowman
• "Becoming a Supple Leopard" written by Kelly Starrett