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PATIENT EDUCATION · KNEE

ACL reconstruction: beyond a calendar

ACL rehabilitation protects a healing graft while restoring movement and strength. Graft choice and additional repairs affect the plan. Return to sport takes longer than this introductory 12-week guide.

Weeks 0–4: restore basic control

Priorities commonly include swelling control, prescribed knee motion, quadriceps activation, and safe walking. Follow brace and weight-bearing instructions. A concurrent meniscus repair can make progression more restrictive.

Examples to discuss—not automatic assignments

Start only if your treating clinician specifically approves the movement, range, and dosage.

Weeks 4–8: strengthen within limits

Progress clinician-selected strength and balance work when walking and control meet criteria. Knee-extension resistance and range need specific guidance; avoid choosing them independently.

Weeks 8–12: test readiness

Progress loading based on strength, swelling, motion, and movement quality. Do not begin running, jumping, or pivoting just because 12 weeks have passed. Your therapist and surgeon determine readiness.

Examples to discuss—not automatic assignments

Start only if your treating clinician specifically approves the movement, range, and dosage.

Questions for your care team

Before moving to the next stage

Confirm your restrictions, review symptom changes, demonstrate the current movements to your therapist, and obtain the next written instructions. Time alone does not establish readiness.

When to stop and get medical help

Stop exercise for new or increasing weakness, spreading numbness, dizziness, or worsening symptoms. Seek urgent medical assessment for fever, concerning wound drainage, or a newly painful swollen calf after surgery. Call 911 for chest pain, sudden shortness of breath, stroke-like symptoms, or a medical emergency. New loss of bladder or bowel control, saddle numbness, or rapidly worsening weakness requires emergency assessment.

Clinical reference

Read the original hospital or professional guidance ↗

Educational overview assembled October 18, 2026. This is not a reproduction of the full protocol, a medical clearance, or a clinician-signed prescription. Follow your own surgical team’s instructions.